205. H. Langhals, 'Molekulare Spiegel und Abstandsmesser. FRET in neuem Gewand',
labor&more 2012, 8.12, 26-35.
204. H. Langhals, P. Knochel, A. Walter, S. Zimdars, 'Benzothiadiazoloperylenes and benzooxdiazoloperylenes: Amorphous functional materials',
Synthesis 2012, 44, 3465-3477.
203. H. Langhals, A. Hofer, 'Controlling UV/Vis absorption and Stokes' shifts in highly fluorescent chromophores by molecular dynamics in targeted construction of dyads',
J. Org. Chem. 2012, 77, 9585-9592.
202. H. Langhals, C. Dietl, A. Zimpel, P. Mayer, 'Noncovalent control of absorption and fluorescence spectra',
J. Org. Chem. 2012, 77, 5965-5970.
201. C. Haritoglou, M. Kernt, P. Laubichler, H. Langhals, K. Eibl, A. Varja, S. Thaler, A. Kampik, 'Synthesis, staining properties, and biocompatibility of a new cyanine dye for ILM peeling',
Graefe's Archive for Clinical and Experimental Ophthalmology 2012, 250, 829-838.
200. P. Nalbach, I. Pugliesi, H. Langhals, M. Thorwart, 'Noise-induced Förster resonant energy transfer between orthogonal dipoles',
Physical Review. Lett. 2012, 108, 218302-1 - 218302-5.
199. H. Langhals, B. Böck, T. Schmid, A. Marchuk, 'Angular benzoperylenetetracarboxylic bisimides',
Chem. Eur. J. 2012, 18, 13188-13194.
198. B. Ventura, H. Langhals, B. Böck, L. Flamigni, 'Phosphorescent perylene imides',
Chem. Commun. 2012, 48, 4226-4228.
197. L. Flamigni, A. Zanelli, H. Langhals, B. Böck, 'Photophysical and redox properties of perylene bis- and tris- dicarboximide fluorophores with triplet state formation: Transient absorption and singlet oxygen sensitization',
J. Phys. Chem. A 2012, 116, 1503-1509.
196. L. Flamigni, A. I. Ciuciu, H. Langhals, B. Böck, D. T. Gryko, 'Improving the photoinduced charge separation parameters in corrole/perylene carboximide dyads by tuning the redox and spectroscopic properties of the components',
Chem. an Asian J. 2012, 7, 582-592.
195. P. Laubichler, A. Varja, H. Langhals, K. Eibl, M. Kernt, C. Haritoglou, 'New cyanine dye for ILM staining',
Acta Ophthalmologica 2011, 89, S248 DOI: 10.1111/j.1755-3768.2011.2317.x.
194. H. Langhals, 'Optische Kontrastmittel für die Unterstützung der Mikrochirurgie',
Management & Krankenhaus 9/2011, 10.
193. H. Langhals, 'FRET in orthogonalen Systemen: Neujustierung des molekularen Zollstocks',
Laborjournal 2011/6, 78-79.
192. I. Pugliesi, A. Walter, H. Langhals, E. Riedle, 'Highly efficient energy transfer in a dyad with orthogonally arranged transition dipole moments: Beyond the Limits of Förster?', in M. Chergui, D. Jonas, E. Riedle, R. W. Schoenlein, A. Taylor (eds.), Ultrafast Phenomena XVII, Oxford University Press, Inc., New York 2011, 343-345; ISBN-10: 0199768374, ISBN-13: 9780199768370.
191. H. Langhals, A. Walter, E. Rosenbaum, L. B.-Å. Johansson, 'A versatile standard for bathochromic fluorescence based on intramolecular FRET',
Phys. Chem. Chem. Phys. 2011, 13, 11055-11059.
190. J. Schütte, R. Bechstein, P. Rahe, H. Langhals, M. Rohlfing, A. Kühnle, 'Single-molecule switching with non-contact atomic force microscopy',
Nanotechnol. 2011, 22, 245701, DOI: 10.1088/0957-4484/22/24/245701.
189. H. Langhals, A. Varja, P. Laubichler, M. Kernt, K. Eibl, C. Haritoglou, 'Cyanine dyes as optical contrast agents for opthalmological surgery',
J. Med. Chem. 2011, 54, 3903-3925.
188. H. Langhals, T. Pust, 'Lipophilic optical supramolecular nano devices in the aqueous phase',
Green and Sustainable Chem. 2011, 1, 1-6.
187. S. Zimdars, H. Langhals, P. Knochel, 'Functionalization of the benzo[c][1,2,5]thiadiazole scaffold via Mg-, Zn- and Mn-intermediates',
Synthesis 2011, 1302-1308.
186. H. Langhals, Die Farben des Mittelalters aus der Sicht des Naturwissenschaftlers, in I. Bennewitz, A. Schindler (eds.), K. Hanauska, P. Hinkelmanns, B. Becker (co-eds.), Farbe im Mittelalter. Materialität - Medialität - Semantik, Akademie Verlag, Berlin 2011, ISBN 978-3-05-004640-2.
185. H. Langhals, A. Hofer, S. Bernhard, J. S. Siegel, P. Mayer, 'Axially chiral bichromophoric fluorescent dyes',
J. Org. Chem. 2011, 76, 990-992.
184. H. Langhals, S. Kinzel, 'Thermochromism of perylenes: Dynamics in aromatics ',
Spectrochim. Acta A 2011, 78, 1212-1214.
183. J. Kelber, H. Bock, O. Thiebaut, E. Grelet, H. Langhals, 'Room temperature columnar liquid crystalline perylene imido-diesters via a homogeneous one-pot imidification-esterification of perylene 3,4,9,10-tetracarboxylic anhydride',
Eur. J. Org. Chem. 2011, 702-712.
182. H. Langhals, A. J. Esterbauer, A. Walter, E. Riedle, I. Pugliesi,
'Förster resonant energy transfer in orthogonally arranged chromophores',
J. Am. Chem. Soc. 2010, 132, 16777-16782.
181. H. Langhals, S. Kinzel, 'Laterally extended naphthalene tetracarboxylic bisimides',
J. Org. Chem. 2010, 75, 7781-7784.
180. L. Flamigni, B. Ventura, A. Barbieri, H. Langhals, F. Wetzel, K. Fuchs, A. Walter, 'On/Off switching of the perylene tetracarboxylic bisimide luminescence by means of substitution at the N position by electron rich mono-, di- and tri-methoxybenzenes',
Chem. Eur. J. 2010, 16, 13406-13416.
179. H. Langhals, 'Fluoreszenz-Immunoliposomen. Nano-Leuchtballons',
Laborjournal 2010/10, 92-93.
178. H. Langhals, Tim Pust, 'Fluorescent nano particles in the aqueous phase by polymer analogous reaction of polyvinyl alcohol',
Spectrochim. Acta A 2010, 77, 541-544.
177. H. Langhals, T. Pust, 'Axially extended perylene dyes',
Eur. J. Org. Chem. 2010, 3140-3145.
176. H. Langhals, T. Pust, 'Fluorescent nano pH indicators based on supramolecular interactions',
Z. Naturforsch. 2010, 65b, 291-294.
175. H. Langhals, 'The color of the terracotta warriors: A problem for chemistry',
Nachr. Chem. 2009, 57, 1079-1084; Chem. Abstr. 2010, 152, 118912.
174. H. Langhals, A. Obermeier, Y. Floredo, A. Zanelli, L. Flamigni, 'Light-driven charge separation in isoxazolidines- perylene bisimide dyads',
Chem. Eur. J. 2009, 15, 12733-12744.
173. H. Langhals, A. J. Esterbauer, S. Kinzel, 'Red shining silica: Macroscopic pigments and nanoparticles by silylation',
New J. Chem. 2009, 33, 1829-1832.
172. H. Langhals, A. J. Esterbauer, 'Fluorescent silica nano particles by silylation',
Chem. Eur. J. 2009, 15, 4793-4796.
171. J. Schütte, R. Bechstein, P. Rahe, M. Rohlfing, A. Kühnle, H. Langhals, 'Imaging perylene derivatives on rutile TiO2(110) by noncontact atomic force microscopy',
Phys. Rev. B 2009, 79, 045428/1-045428/8.
170. H. Langhals, C. Haritoglou, 'Chemical and spectroscopic aspects of the application of dyes in vitreoretinal surgery',
Der Ophthalmologe 2009, 106, 16-20.
169. C. Haritoglou, A. Kampik, H. Langhals, 'Indocyanine Green should not be used to facilitate removal of the internal limiting membrane in macular hole surgery',
Survey Ophthalmol. 2009, 54, 138-141.
168. M. Tasior, D. T. Gryko, Jing Shen, K. M. Kadish, T. Becherer, H. Langhals, B. Ventura, L. Flamigni, 'Energy- and electron-transfer processes in corrole-perylenebisimide-diphenylacetylene array',
J. Phys. Chem. C 2008, 112, 19699-19709.
167. H. Langhals, A. Obermeier, 'Click-reaction for fluorescent labelling. Application of the 1,3-dipolar cycloaddition',
Eur. J. Org. Chem. 2008, 6144-6151.
166. H. Langhals, S. Poxleitner, O. Krotz, T. Pust, A. Walter, 'FRET in orthogonally arranged chromophores',
Eur. J. Org. Chem. 2008, 4559-4562.
165. H. Langhals, B. Oginski, 'Electron beam curing with glycerol methacrylate',
J. Polymer Sc. Part A: Polymer Chemistry 2008, 46, 6660-6663.
164. H. Langhals, Molecular devices. Chiral, bichromophoric silicones: Ordering principles in complex molecules in F. Ganachaud, S. Boileau, B. Boury (eds.), Silicon Based Polymers, p. 51-63, Springer, 2008, ISBN 978-1-4020-8527-7, e-ISBN 978-1-4020-8528-4.
163. C. Haritoglou, T. Kreutzer, R. Tadayoni, H. Langhals, C. A. May, S. Thaler, A. Kampik, 'Staining and peeling of the internal limiting membrane using a fluorescent dye (Rhodamine 6 G)',
Br. J. Ophthalmol. 2008, 92, 1265-1268.
162. H. Langhals, U. Ritter, 'g-(Hydroxyalkyl)naphthalene-tetracarboxdiimides: Organic white pigments',
Eur. J. Org. Chem. 2008, 3912-3915.
161. H. Langhals, G. Schönmann, K. Polborn, 'Anthracene carboxyimides and their dimers',
Chem. Eur. J. 2008, 14, 5290-5303.
160. H. Langhals, S. Poxleitner, 'Core-extended terrylene bisimides - novel, strongly red fluorescent broadband absorbers',
Eur. J. Org. Chem. 2008, 797-800.
159. H. Langhals, M. Rauscher, J. Strübe, D. Kuck, 'Three orthogonal chromophores operating independently within the same molecule',
J. Org. Chem. 2008, 73, 1113-1116.
158. L. Flamigni, B. Ventura, M. Tasior, T. Becherer, H. Langhals, D. T. Gryko, 'New and efficient arrays for photoinduced charge separation based on perylene bisimide and corroles',
Chem. Eur. J. 2008, 14, 169-183.
157. H. Langhals, 'Brightly shining nano particles: Lipophilic perylene bisimides in aqueous phase',
New. J. Chem. 2008, 32, 21-23.
156. H. Langhals, T. Becherer, J. Lindner, A. Obermeier, 'The fluorescence labelling of primary amines with perylene bisimides',
Eur. J. Org. Chem. 2007, 4328-4336.
155. H. Langhals, O. Krotz, 'Chiral, bichromophoric silicones: Ordering principles of structual units in complex molecules',
Angew. Chem. 2006, 118, 4555-4561; Angew. Chem. Int. Ed. Engl. 2006, 45, 4444-4447.
154. H. Langhals, R. El-Shishtawy, P. von Unold, M. Rauscher, 'Methoxyperylene bisimides and perylene lactame imides: Novel, red fluorescent dyes',
Chem. Eur. J. 2006, 12, 4642-4645.
153. H. Langhals, K. Fuchs, 'Fluorescent labels for aldehydes',
Coll. Czech. Chem. Commun. 2006, 71, 625-634.
152. H. Langhals, H. Jaschke, 'Naphthalene amidine imide dyes by transamination of naphthalene bisimides',
Chem. Eur. J. 2006, 12, 2815-2824.
151. H. Langhals, J. Gold, 'An Unusual b-Oxidation of N-functionalized alkyl chains by imidazole',
Helv. Chim. Acta. 2005, 88, 2832-2836.
150. H. Langhals, H. Jaschke, H. Bastani-Oskoui, M. Speckbacher, 'Perylene dyes with high resistance to alkali',
Eur. J. Org. Chem. 2005, 4313-4321.
149. H. Langhals, 'Control of the interactions in multichromophores: Novel concepts. Perylene bisimides as components for larger functional units',
Helv. Chim. Acta. 2005, 88, 1309-1343.
148. H. Langhals, O. Krotz, K. Polborn, P. Mayer, 'A novel fluorescent dye with strong, anisotropic solid-state fluorescence, small Stokes' shift and high photostability – novel realizations for cooling with light',
Angew. Chem. 2005, 117, 2479-2480; Angew. Chem. Int. Ed. Engl. 2005, 44, 2427-2428.
147. H. Langhals, D. Bathelt, S. Bucher, 'Das Grabmal des ersten chinesischen
Kaisers Qin Shihuangdi: ein ungewöhnlich großer archäologischer
Fund und seine chemische und konservatorische Herausforderung',
Chemie in unserer Zeit 2005, 39, 196-211; Chem. Abstr. 2005, 143, 172244.
146. H. Langhals, J. Büttner, P. Blanke, 'A two-step synthesis for quarterrylene bisimides. Application of the "green route" method',
Synthesis, 2005, 364-366.
145. H. Langhals, 'Chromophore als Basis für zukünftige Technologien. Neue Strukturen, neue Anwendungen, neue Prespektiven' in EWG Bitterfeld-Wolfen, Prof. Dr. E. Fanghänel, ed., Innovationsforum und Kontaktbörse. Fein- und Spezialchemikaliensynthese für Wirkstoffe und HighTech-Produkte, p. 229-272, printLein GmbH, Bitterfeld 2004, ISBN 3-00-015516-3.
144. H. Langhals, 'Novel Chromophores with novel applications and their
interaction in multichromophoric systems',
1st International Conference of Textile Research Division NCR, Cairo, Egypt, March 2-4, 2004, 58-64; ISSN 1687-2126.
143. H. Langhals, K. Fuchs, 'Chemie am Strand - Sonnenstrahlung,
Hautreaktionen und Sonnenschutz',
Chemie in unserer Zeit 2004, 38, 98-112; Chem. Abstr. 2004, 141, 42490.
142. H. Langhals, D. Bathelt, 'The restoration of the largest archaeological discovery - a chemical problem: Conservation of the polychromy of the chinese Terracotta Army in Lintong',
Angew. Chem. 2003, 115, 5854-5859; Angew.
Chem. Int. Ed. Engl. 2003, 42, 5676-5681.
141. H. Langhals, 'An unexpectedly simple NIR dye for 1.1 µm
with a central mesoionic structure',
Angew. Chem. 2003, 115, 4422-4424; Angew.
Chem. Int. Ed. Engl. 2003, 42, 4286-4288.
140. H. Langhals, S. Saulich, 'Chromophores as elements of
structure for pico technology optical computers',
Z. Naturforsch. 2003, 58b, 695-697.
139. H. Langhals, P. Blanke, 'An approach to novel NIR dyes utilising a-effect donor groups',
Dyes Pigm. 2003, 59, 109-116.
138. J. Bauer, P. Behrens, M. Speckbacher, H. Langhals, 'Composites
of perylene chromophores and layered double hydroxides: Direct
synthesis, characterization, photo- and chemical stability',
Adv. Funct. Mater. 2003, 13, 241-248.
137. H. Langhals, 'Novel chromophores with novel applications
and their interaction in multichromophoric systems',
Adv. in Color Science and Technol. 2002, 5,
122-124; Chem. Abstr. 2003, 138, 254616.
136. H. Langhals, S. Saulich, 'Bichromophoric perylene
derivatives: Energy transfer from non fluorescent chromophores',
Chem. Eur. J. 2002, 8, 5630-5643.
135. I. Renge, C. G. Hubner, A. Renn, H. Langhals, U. P. Wild,
'Slow photochemical transformations of single dye molecules in
polymer environment at room temperature',
J. Lumines. 2002, 98, 91-96.
134. H. Langhals, 'The rapid identification of organic
colorants by UV/Vis-spectroscopy',
Anal. Bioanal. Chem. 2002, 374, 573-578.
133. I.-P. Lorenz, M. Limmert, P. Mayer, H. Piotrowski, H.
Langhals, M. Poppe and K. Polborn, 'DPP dyes as ligands in copper,
silver, and gold complexes',
Chem. Eur. J. 2002, 8, 4047-4055.
132. H. Langhals, 'UV-Visible spectroscopy and the potential of fluorescent probes' in F. H. Frimmel, Refractory Organic Substances in the Environment, p. 200-214, Wiley-VCH, Weinheim 2002, ISBN 3-527-30173-9.
131. I. Rogner, H. Langhals, Zhou Tie, Zhang Zhijun, Rong Bo, C. Blänsdorf, C. Herm, 'Consolidation and preservation of the polychrome qi-lacquer layers of the terracotta army of Quin Shihuang by treatment with methacrylic monomers and electron beam curing' in The terracotta army of the first chinese emperor Quin Shihuang, Arbeitshefte des Bayerischen Landesamtes für Denkmalpflege, 2001, 83, 594-617; ISBN 3-87490-711-2.
130. H. Langhals, C. Wagner, R. Ismael, 'Star-like oriented
chromophores',
New. Journ. Chem. 2001, 25, 1047-1049.
129. H. Langhals, M. Speckbacher, 'Intramolecular effects in
covalently connected units: Ring-type oriented chromophores and
their interactions',
Eur. J. Org. Chem. 2001, 2481-2486.
128. F. Süßmeier, H. Langhals, 'Novel fluorescence labels:
The synthesis of perylene-3:4,9-tricarboxylic imides',
Eur. J. Org. Chem. 2001, 607-610.
127. S. Kalinin, M. Speckbacher, H. Langhals, L. B.-Å.
Johansson, 'A new and versatile fluorescence standard for quantum
yield determination',
Phys. Chem. Chem. Phys. 2001, 3, 172-174.
126. H. Langhals, G. Abbt-Braun, F. H. Frimmel, 'Association
of humic substances: Verification of Lambert-Beers law',
Acta hydrochim. et hydrobiol. 2000, 28, 329-332.
125. H. Langhals, M. Limmert, I.-P. Lorenz, P. Mayer, H.
Piotrowski, K. Polborn, 'Chromophores encapsulated in gold
complexes: DPP Dyes with Novel Properties',
Eur. J. Inorg. Chem. 2000, 2345-2349.
124. H. Langhals, R. Ismael, O. Yürük, 'Persistent
fluorescence of perylene dyes by steric inhibition of aggregation',
Tetrahedron 2000, 56, 5435-5441.
123. H. Langhals, 'A Re-examination of the line-shape of the
electronic spectra of complex molecules in solution. Log-normal
function versus Gaussian',
Spectrochim. Acta Part A 2000, 56, 2207-2210.
122. H. Langhals, H. Jaschke, P. von Unold, U. Ring, 'Matched
dyes for information recording',
J. Inform. Recording 2000, 25, 195-110;
Chem. Abstr. 2001, 134, 244847.
121. G. J. Mohr, U. E. Spichiger, W. Jona, H. Langhals, 'Using
N-aminoperylene-3,4:9,10-tetracarboxyl-bisimide as a
fluorogenic reactand in the optical sensing of aqueous
propionaldehyde',
Anal. Chem. 2000, 72, 1084-1087.
120. H. Langhals, S. Kirner, 'Novel fluorescent dyes by the
extension of the core of perylene-tetracarboxylic bisimides',
Eur. J. Org. Chem. 2000, 365-380.
119. F. Einsiedl, H. Langhals, P. Maloszewski, K. Witthuser, S.
Wohnlich, 'Application of two new fluorescent dyes and
fluorescent particles in a horizontal and vertical fracture'
IAHS Publ. (Tracers and Modelling in Hydrogeology) 2000,
262, 175-179; Chem Abstr. 2000, 133,
240814.
118. E. Schmälzlin, U. Bitterer, H. Langhals, C. Bräuchle, K.
Meerholz, 'Determination of the first hyperpolarizability of
multiphoton fluorescent nonlinear optical chromophores via hyper-Rayleigh
Scattering Using Fluorescence Quenching',
Chem. Phys. 1999, 245, 73-78.
117. H. Langhals, F. Süßmeier, 'Bichromophoric perylene-3,4-dicarboxylic
imides: Highly intense and light-fast fluorescent dyes',
J. Prakt. Chem. 1999, 341, 309-311.
116. I. Rogner, H. Langhals, 'Fixation of the colored and
humid Qi-lacqer layer of the Chinese Terracotta Warriors by
electon-beam curing of methacrylic monomers',
ARC-Nucléat, Grenoble 1999, 294-298.
115. I. Rogner, H. Langhals, 'The fixation of natural Qi-Lac
on silicate surfaces by electron-beam induced polymerization',
J. Macromol. Chem., Notes part 1999, A36,
461-469.
114. H. Langhals, R. Ismael, K. Polborn, 'Crystal structures
of N,N'-dimethyl-N''-(1-methylpropyl)naphthalene-1:4,5-tricarboxylic-4,5-imide-1,8-hydrazame,
C19H19N3O3 and of N,N'-dimethyl-N''-(1-hexylheptyl)naphthalene-1:4,5-tricarboxylic-4,5-imide-1,8-hydrazame,
C28H37N3O3, two naphthalene hydrazamimides',
Zeitschr. Krist. 1999, 214, 35-37.
113. H. Langhals, H. Jaschke, U. Ring, P. von Unold, 'Imidazolo
perylene imides: A highly fluorescent and stable replacement of
terrylene',
Angew. Chem. 1999, 111, 143-145; Angew.
Chem. Int. Ed. Engl. 1999, 38, 201-203.
112. F. Einsiedl, S. Wohnlich, H. Langhals, D. Klotz, 'The Use of N,N'-bis(phenyl-3,5-disulphonic-acid)-perylene-3,4:9,10-bis(dicarboximide) as a hydrogeological tracer' in J. van Brahma, Y. Eckstein, L. K. Ongley, R. Schneider and J. E. Moore (eds.): Gambling with groundwater - physical, chemical, and biological aspects of aquifer-stream relations, proceedings volume of the joint conference of the International Association of Hydrogeologists and the American Institute of Hydrogeology, Las Vegas, Nevada U.S.A., 28.9.1998 - 2.10.1998, 1998, 555-560; LCCC 98-073291.
111. H. Langhals, W. Jona, F. Einsiedl, S. Wohnlich, 'Self-dispersion:
Spontaneous formation of colloidal dyes in water',
Adv. Mater. 1998, 10, 1022-1024.
110. H. Langhals, J. Karolin, L. B.-Å. Johansson, 'Spectroscopic
properties of new and convenient standards for measuring
fluorescence quantum yields',
J. Chem. Soc., Faraday Trans. 1998, 94, 2919-2922.
109. H. Langhals, R. Ismael, 'Cyclophanes as model compounds
for permanent, dynamic aggregates - induced chirality with strong
CD effects',
Eur. J. Org. Chem. 1998, 1915-1917.
108. H. Langhals, W. Jona, 'Identification of carbonyle
compounds by fluorescence: A novel carbonyl derivating reagent',
Chem. Eur. J. 1998, 4, 2110-2116.
107. H. Langhals, 'Novel dyes for electrophotographic processes with the perylene sructure element', Proceedings of 'The 3rd International Conference on Imaging Science and Hardcopy' (ICISH'98) 1998, 43-46.
106. H. Langhals, W. Jona, 'The Synthesis of Perylenebisimide
Monocarboxylic Acids',
Eur. J. Org. Chem. 1998, 847-851.
105. H. Langhals, W. Jona, 'Intense dyes through
chromophore-chromophore interactions: Bi- and trichromophoric
perylene-3,4:9,10-bis(dicarboximide)s',
Angew. Chem. 1998, 110, 998-1001; Angew.
Chem. Int. Ed. Engl. 1998, 37, 952-955.
104. H. Langhals, P. von Unold, 'Arylimide-lactam-ring-contractions
- a novel type of rearrangements',
GIT Fachz. Lab. 1997, 41, 974-978; Chem.
Abstr. 1997, 127, 331413n.
103. H. Langhals, J. Gold, 'Chiral bifluorophoric perylene
dyes with unusually high CD effects - a simple model for the
photosynthesis reaction center',
Liebigs Ann./Recueil 1997, 1151-1153.
102. H. Langhals, P. von Unold, M. Speckbacher, 'Balanced
decarboxylation of aromatic polyacids - a one-step synthesis of
perylene-3,4-dicarboxylic anhydride',
Liebigs Ann./Recueil 1997, 467-468.
101. H. Langhals, H. Bastani-Oskoui, 'Synthesis of readily
doluble tetraazaviolanthrone and -isoviolanthrone fluorescent
dyes',
J. Prakt. Chem. 1997, 339, 597-602.
100. U. Ring, H. Langhals, 'Simulations for the agening of the ground coating for the polychromic painting of the Terra-cotta Warriors of the first emperor of china', in Museum of the Terra-cotta Warroirs of the Emperor Qin Shi-Huang, A Research in the Studies of the Terra-cotta Warroirs in the Mausoleum of the Emperor Qin Shi-Huang, p. 1302-1308, Publisher for People's Education, Xi'an (China) 1996, ISBN 7-5419-6242-2.
99. L. B.-Å. Johansson, L. Persson, H. Langhals, 'Conspicuous
absorption and fluorescence spectroscopic properties of 3,3'-dihydroxy-2,2'-bipyridines
in solution',
J. Chem. Soc., Faraday Trans. 1996, 92, 4909-4911.
98. J. Karolin, L. B.-Å. Johansson, U. Ring, H. Langhals, 'Aggregation
of perylene dyes in lipid vesicles: the effect of optically
active substituents',
Spectrochim. Acta A 1996, 52, 747-753.
97. H. Langhals, L. Feiler, 'Pyrrolo- and
thiophenoperylenedicarboximides - highly fluorescent heterocycles',
Liebigs Ann. 1996, 1587-1591.
96. H. Langhals, J. Gold, 'Tangentially coupled p systems and their through-space
interaction - trichromophoric perylene dyes',
J. Prakt. Chem. 1996, 338, 654-659.
95. H. Langhals, B. Wagner, 'Oxindigo: Colour deepening,
strong fluorescence and large Stokes-Shift by donor-substitution',
Angew. Chem. 1996, 108, 1090-1093; Angew.
Chem. Int. Ed. Engl. 1996, 35, 1016-1019.
94. H. Langhals, B. Wagner, K. Polborn, 'The oxydative
coupling of coumaranone with disulfurbichloride',
Tetrahedron 1996, 52, 1961-1964.
93. H. Langhals, G. Schönmann, L. Feiler, 'A two-step
synthesis of quaterrylenetetracarboxylic bisimides - novel NIR
fluorescent dyes',
Tetrahedron Lett. 1995, 36, 6423-6424.
92. H. Langhals, P. v. Unold, 'Tetracarboxylic bisimide-lactame-ring-contractions
- a Novel Type of Rearrangement',
Angew. Chem. 1995, 107, 2436-2439; Angew.
Chem., Int. Ed. Engl. 1995, 34, 2234-2236.
91. H. Langhals, 'Novel dyes for electrophotographic processes with the perylene structure element', 10th IS&T's Int. Congr. Adv. Non-Impact Print. Technol., IS&T-The Society for Imaging Science and Technology, Springfield, Va., 1994; Chem. Abstr. 1996, 124, 59054c.
90. H. Langhals, R. Kollefrath, J. Lindner, 'The determination
of the molecular weights of perylene dyes by GPC',
Macromol. Rep. 1995, A32, 415-423.
89. L. Feiler, H. Langhals, K. Polborn, 'Synthesis of perylene-3,4-dicarboximides
- novel, highly photostable fluorescent dyes',
Liebigs Ann. Chem. 1995, 1229-1244.
88. P. Edman, L. B.-Å. Johansson, H. Langhals, 'Polarized
light spectroscopy of dihydro-pyrroledione in liquids and liquid
crystals: Molecular conformation and influence by an anisotropic
environment',
J. Phys. Chem. 1995, 99, 8504-8509.
87. H. Langhals, S. Sprenger, M.-T. Brandherm, 'Peryleneamidine-imide
dyes',
Liebigs Ann. Chem. 1995, 481- 486.
86. T. Sander, H.-G. Loehmannsroeben, H. Langhals, 'Photophysical
and fluorescence quenching properties of 1,7-diazaperylene in
solution',
J. Photochem, Photobiol. A 1995, 86, 103-108.
85. H. Langhals, 'Novel perylene derivatives as highly
photostable fluorescent dyes',
Chimia 1994, 48, 503-505.
84. H. Langhals, 'Cyclic carboxylic imide structures as
structure elements of high stability. Novel developments in
perylene dye chemistry',
Heterocycles 1995, 40, 477-500.
83. H. Langhals, 'Dyes for fluorescent immunoassays', in B. Hock, Immunochemical Detection of Pesticides and their Metabolites in the Water Cycle, VCH Verlagsgesellschaft, Weinheim 1995, ISBN 3-527-27137-6; Chem. Abstr. 1996, 124, 24966z.
82. L. B.-Å. Johansson, J. Karolin, H. Langhals, S.
Reichherzer, N. von Füner, K. Polborn, 'Photophysics, molecular
reorientation in solution and X-ray structure of a new
fluorescent probe 1,7-diazaperylene',
J. Chem. Soc., Faraday Trans. I 1993, 89, 49-54.
81. H. Langhals, 'Mehrkernige Aromaten als Basis für hochlichtechte Fluoreszenzfarbstoffe - neuere Anwendungen', in "Herstellung und Anwendung mehrkerniger Aromaten und Heteroaromaten" DMGK-Berichte (Deutsche Wissenschaftliche Gesellschaft für Erdöl, Erdgas und Kohle e.V.) Tagungsbericht 9105, ISBN 3-928164-19-8, Hamburg 1991, p. 95-118; Chem. Abstr. 1993, 118, 23719k.
80. H. Schott, D. v. Cunov, H. Langhals, 'Labelling of
liposomes with intercalating perylene fluorescent dyes',
Biochim. Biophys. Acta 1992, 1110, 151-157.
79. H. Langhals, T. Grundei, T. Potrawa, K. Polborn, 'Highly
photostable organic fluorescent pigments - a simple synthesis of
N-arylpyrrolopyrrolediones (DPP)',
Liebigs Ann. 1996, 679-682.
78. S. A. Tucker, W. E. Acree, Jr., M. J. Tanga, S. Tokita, K.
Hiruta, H. Langhals, 'Spectroscopic properties of polycyclic
aromatic compounds: examination of nitromethane as a selective
fluorescence quenching agent for alternant polycyclic aromatic
nitrogen hetero-atom derivatives',
Appl. Spectrosc. 1992, 46, 229-235.
77. H. Langhals, 'Erasable optical fluorescent data storage (EOFS)
- a novel way for information recording',
J. Inf. Rec. Mater., Berlin 1991, 19, 449-454.
76. H. Langhals, S. Demmig, T. Potrawa, 'The relation between
packing effects and solid state fluorescence of dyes',
J. Prakt. Chem. 1991, 333, 733-748.
75. L. B.-Å. Johansson, H. Langhals, 'Spectroscopic studies
of perylene fluorescent dyes',
Spectrochim. Acta 1991, 47A, 857-861.
74. H. Langhals, 'Eine einfache und präzise Schnellbestimmung
für Wasser in organischen Lösungsmitteln',
GIT Fachz. Lab. 1991, 7, 766-771; Chem.
Abstr. 1991, 115, 269619f.
73. H. Langhals, 'A simple, quick, and precise procedure for
the determination of water in organic solvents',
Anal. Lett. 1990, 23, 2243-2258.
72. R. A. Schwendener, T. Trüb, H. Schott, H. Langhals, R. F.
Barth, P. Groscurth, H. Hengartner, 'Comparative studies of the
preparation of immunoliposomes with the use of two bifunctional
coupling agents and investigation of in vitro immunoliposome-target
cell binding by cytofluorometry and electron microscopy',
Biochim. Biophys. Acta 1990, 1026, 69-79.
71. H. Kaiser, J. Lindner, H. Langhals, 'Synthese von
nichtsymmetrisch substituierten Perylen-Fluoreszenzfarbstoffen',
Chem. Ber. 1991, 124, 529-535.
70. H. Langhals, 'Optische Fluoreszenz-Datenspeicher: Mehr
Informationen auf engerem Raum',
Chem. Ind. (Düsseldorf) 1990, 113/6, 56-60;
Chem. Abstr. 1990, 113, 122620z.
69. H. Langhals, 'Description of properties of binary solvent mixtures' in R. I. Zalewski, T. M. Krygowski, J. Shorter, Similarity Models in Organic Chemistry, Biochemistry and Related Fields. Studies in Organic Chemistry 42, Elsevier Publishers, Amsterdam 1991, p. 283 - 342; ISBN 0-444-88161-1.
68. C. Naumann, H. Langhals, 'Synthese von 1,7-Diazaperylen',
Chem. Ber. 1990, 123, 1881-1884.
67. V. Sachweh, H. Langhals, 'Synthese von Reinst-Rubicen und
Rubicen-Derivaten',
Chem. Ber. 1990, 123, 1981-1987.
66. H. Langhals, K. Hadizamani, 'The relation between
bridgehead reactivity and electronic effects',
New. J. Chem. 1990, 14, 279-281.
65. E. Langhals, H. Langhals, 'Alkylation of ketones by use of
solid KOH in dimethyl sulfoxide',
Tetrahedron Lett. 1990, 31,859-862.
64. H. Langhals, K. Hadizamani, 'Sextettumlagerungen als
Solvens-Polaritätssonde',
Chem. Ber. 1990, 123, 407-409.
63. C. Naumann, H. Langhals, 'A simple synthesis of
dihydroxybipyridyls',
Synthesis 1990, 279-281.
62. H. Langhals, T. Potrawa, 'Löschbare optische Fluoreszenz-Datenspeicher',
Chimia 1990, 44, 62-67.
61. H.-G. Löhmannsröben, H. Langhals, 'Laser performance of
perylenebis(dicarboximide) dyes with long secondary alkyl chains',
Appl. Phys. 1989, B48, 449-452.
60. H. Langhals, T. Potrawa, H. Nöth, G. Linti, 'Der
Einfluß von Packungseffekten auf die Feststofffluoreszenz von
Diketopyrrolopyrrolen',
Angew. Chem. 1989, 101, 497-499; Angew.
Chem. Int. Ed. Engl. 1989, 28, 478-480.
59. J. Salbeck, H. Kunkely, H. Langhals, R. W. Saalfrank, J.
Daub, 'Elektronentransfer (ET)-Verhalten von
Fluoreszenzfarbstoffen - untersucht am Beispiel von
Perylenbiscarboximiden und einem Dioxaindenoindendion mit
Cyclovoltametrie und mit UV/VIS-Spektroelektrochemie',
Chimia 1989, 43, 6-9.
58. H. Langhals, 'Dyes with high dielectric constants',
Chem. Phys. Lett. 1988, 150, 321-324.
57. H. Langhals, S. Demmig, H. Huber, 'Rotational barriers in
perylene fluorescent dyes',
Spectrochim. Acta 1988, 44A, 1189-1193.
56. H. Langhals, 'Determination of the concentration of gases
by pressure measurements',
Anal. Lett. 1987, 20, 1595-1610.
55. H. Langhals, J. Fünfschilling, D. Glatz, I. Zschokke-Gränacher,
'Low temperature fluorescence spectra of atropisomeric perylene
dyes',
Spectrochim. Acta 1988, 44A, 311.
54. S. Demmig, H. Langhals, 'Leichtlösliche, lichtechte
Perylen-Fluoreszenzfarbstoffe',
Chem. Ber. 1988, 121, 225-230.
53. E. M. Ebeid, S. A. El-Daly, H. Langhals, 'Emission
Characteristics and photostability of N,N'-bis-(2,5-di-tert-butylphenyl)-3,4:9,10-perylenebis(dicarboximide)',
J. Phys. Chem. 1988, 92, 4565-4568.
52. T. Potrawa, H. Langhals, 'Fluoreszenzfarbstoffe mit großen
Stokes-Shifts - lösliche Dihydropyrrolopyrroldione',
Chem. Ber. 1987, 120, 1075-1078.
51. H. Langhals, 'The polarity of solutions of electrolytes',
Tetrahedron 1987, 43, 1771-1774.
50. H. Langhals, S. Grundner, 'Fluoreszenzfarbstoffe mit Fünfring-Carbonsäureimid-Strukturen',
Chem. Ber. 1986, 119, 2373-2376.
49. V. Sachweh, H. Langhals, 'Substituentenkonstanten des
Pyrazol-, 1,2,3-Triazol-, Benzotriazol- und Naphthotriazol-Restes',
Chem. Ber. 1986, 119, 1627-1639.
48. H. Langhals, 'Polarity of liquid mixtures with components
of limited miscibility',
Tetrahedron Lett. 1986, 27, 339-342.
47. H. Langhals, 'Polarität von Flüssigkeitsgemischen mit
begrenzt mischbaren Komponenten',
Z. Phys. Chem. 1987, 268, 91-96.
46. H. Langhals, 'Hochempfindliches analytisches
Nachweisverfahren auf der Basis der Fluoreszenz durch Laser-Anregung',
Chem. Ind. (Düsseldorf) 1985, 37, 470-472.
45. H. Langhals, 'Synthese von hochreinen Perylen-Fluoreszenzfarbstoffen
in großen Mengen - gezielte Darstellung von Atrop-Isomeren',
Chem. Ber. 1985, 118, 4641-4645.
44. H. Langhals, S. Pust, 'Fluoreszenzfarbstoffe mit großen
Stokes-Shifts - eine einfache Synthese von (2,2'-Bipyridin)-3,3'-diol',
Chem. Ber. 1985, 118, 4674-4681.
43. C. Aubert, J. Fünfschilling, I. Zschokke-Gränacher, H.
Langhals, 'Hochempfindliches Nachweisverfahren auf der Basis der
Fluorescenz durch Laser-Anregung',
Zeitschr. Analyt. Chem. 1985, 320, 361-364.
42. H. Langhals, 'Vereinfachung der Analyse binärer Flüssigkeitsgemische
unter Verwendung des Brechungsindex oder der Dichte',
Zeitschr. Analyt. Chem. 1984, 319, 293-295.
41. K. Fritzsche, H. Langhals, 'Elektronenreiche Heterocyclen
als Donorgruppen in Fluoreszenzfarbstoffen',
Chem. Ber. 1984, 117, 2275-2286.
40. H. Langhals, 'Der Zusammenhang zwischen dem Brechungsindex
und der Zusammensetzung binärer Flüssigkeitsgemische',
Z. Phys. Chem. 1985, 266, 775-780.
39. E. Langhals, H. Langhals, C. Rüchardt, 'Eine einfache
Synthese der 5-Cyan-2-pyridincarbonsäure und ihres Amids',
Chem. Ber. 1984, 117, 1259-1261.
38. E. Langhals, H. Langhals, C. Rüchardt, 'Der Nachweis
eines Radikalketten-Mechanismus für die KNABE-Reaktion von 1,2-Dihydro-2-methyl-papaverin',
Chem. Ber. 1984, 117, 1436-1454.
37. I. Lukac, H. Langhals, 'Darstellung und
Fluoreszenzverhalten von 2,3,4,4a,10a,11,12,13,-Octahydro-1,4a,10a,14-tetraazaviolanthron-Derivaten',
Chem. Ber. 1983, 116, 3524-3528.
36. C. Finkentey, E. Langhals, H. Langhals, 'Eine einfache
Synthese von 3-Methoxypyridin und seinen Analogen durch
Alkylierungsreaktionen',
Chem. Ber. 1983, 116, 2394-2397.
35. E. Langhals, H. Langhals, C. Rüchardt, 'Eine Synthese von
Nornikotin- und Nikotin-2-carboxamid',
Liebigs Ann. Chem. 1983, 330-333.
34. H. Langhals, M. Julia, D. Uguen, 'Eine einfache Synthese
von a-Styrylenolethern und
Arylacetaldehyden aus Benzylalkoholen',
Liebigs Ann. Chem. 1982, 2216-2222.
33. G. Baur, A. Götzberger, A. Heidler, H. Langhals, E. Sah, V. Wittwer, A. Zastrow, 'Solar energy conversion on the basis of fluorescent collectors', Forschungsber. - Bundesminist. Forsch. Technol., Technol. Forsch. Entwickl. (1982), BMFT-FB-T 82-081, ISSN: 0340-7608; Chem. Abstr. 1982, 97, 200752m.
32. I. Mergelsberg, H. Langhals, C. Rüchardt, 'Nachweis von 4-Homocubyl-Carbenium-Ionen
als reaktive Zwischenstufen',
Chem. Ber. 1983, 116, 360-366.
31. H. Langhals, 'Polarität binärer Flüssigkeitsgemische',
Angew. Chem. 1982, 94, 739-749; Angew.
Chem. Int. Ed. Engl. 1982, 21, 724-733.
30. A. Rademacher, S. Märkle, H. Langhals, 'Lösliche Perylen-Fluoreszenzfarbstoffe
mit hoher Photostabilität',
Chem. Ber. 1982, 115, 2927-2934.
29. H. Langhals, 'Empirische Polaritätsskalen und binäre
Solvens-Gemische',
Nouv. Journ. Chim. 1982, 6, 285-286.
28a. H. Langhals, 'Polarität von organischen Gläsern',
Angew. Chem. 1982, 94, 452-453; Angew.
Chem. Int. Ed. Engl. 1982, 21, 432-433.
28b. H. Langhals, 'Polarität von organischen Gläsern',
Angew. Chem. Suppl. 1982, 1138-1143.
27. E. Langhals, H. Langhals, C. Rüchardt, 'Eine einfache
neue Synthese der Fusarinsäure und anderer 5-Alkyl-2-pyridincarbonsäuren',
Liebigs Ann. Chem. 1982, 930-949.
26. H. Langhals, I. Mergelsberg, C. Rüchardt, U. Burger, 'Die
Isomerisierung der Homoadamantan-3-carbonsäure zur Homoadamantan-1-carbonsäure',
Chem. Ber. 1982, 115, 1509-1524.
25. H. Langhals, 'Die Beschreibung der Polarität von
Alkoholen als Funktion ihres molaren Gehalts an OH-Gruppen',
Nouv. Journ. Chim. 1982, 6, 265-267.
24. H. Langhals, 'Bestimmung der Zusammensetzung binärer Flüssigkeitsgemische
mit Hilfe von Fluoreszenzmessungen',
Zeitschr. Analyt. Chem. 1982, 310, 427-428.
23. H. Langhals, 'Untersuchung des Lösungsmitteleinflusses
auf Absorption und Emission bei Fluoreszenzfarbstoffen',
Z. Phys. Chem. (Wiesbaden) 1981, 127, 45-53.
22. H. Langhals, 'Ungewöhnliches Polaritätsverhalten binärer
Flüssigkeitsgemische',
Nouv. Journ. Chim. 1981, 5, 511-514.
21. H. Langhals, 'Ein neues, unkompliziertes Verfahren zur
Bestimmung der Zusammensetzung binärer Flüssigkeitsgemische',
Zeitschr. Analyt. Chem. 1981, 308, 441-444.
20. H. Langhals, C. Rüchardt, 'Wanderungstendenzen cyclischer,
polycyclischer und methylverzweigter Alkylreste bei der Beckmann-Umlagerung',
Chem. Ber. 1981, 114, 3831-3854.
19. H. Langhals, G. Range, E. Wistuba, C. Rüchardt, 'Alkylwanderungen
bei Sextettumlagerungen',
Chem. Ber. 1981, 114, 3813-3830.
18. H. Langhals, I. Mergelsberg, C. Rüchardt, 'Synthesis of
13C=O-labelled Tertiary Alcanoic Acids by the Koch-Haaf-Reaction',
Tetrahedron Lett. 1981, 22, 2365-2366.
17. H. Langhals, 'Die quantitative Beschreibung der Lösungsmittelpolarität
binärer Gemische unter Berücksichtigung verschiedener Polaritätsskalen',
Chem. Ber. 1981, 114, 2907-2913.
16. K. Peters, H. Langhals, G. Werner, '5,13-DI-TERT-BUTYL-RUBICENE,
C34H30',
Cryst. Structure Commun. 1981, 10, 713-717.
15. H. Langhals, 'Eine quantitative Beschreibung der
Solvatochromie in binären Flüssigkeitsgemischen',
Nouv. Journ. Chim. 1981, 5, 97-99.
14. H. Langhals, 'Farbstoffe für Fluoreszenz-Solarkollektoren',
Nachr. Chem. Tech. Lab. 1980, 28, 716-718, Chem.
Abstr. 1981, 95, R9816q.
13. E. Fritz, H. Langhals, C. Rüchardt, 'Eine einfache
Synthese von Tetramethyloxamid',
Liebigs Ann. Chem. 1981, 1015-1017.
12. H. Langhals, 'Ein neues, unkompliziert auszuführendes
Verfahren zur Bestimmung kleiner Konzentrationen an Wasser in
organischen Lösungsmitteln',
Zeitschr. Analyt. Chem. 1981, 305, 26-28.
11. H. Langhals, E. Fritz, I. Mergelsberg, 'Die Trocknung von tert-Butylhydroperoxid
nach einem einfachen, erstmals gefahrlosen Verfahren',
Chem. Ber. 1980, 113, 3662-3665.
10. R. Winkler, H. Langhals, 'Über das ungewöhnliche
Schmelzverhalten von Mischungen aus Homoadamantan-1- und -3-carbonsäure',
Chem. Ber. 1980, 113, 3381-3383.
9. I. Mergelsberg, H. Langhals, C. Rüchardt, 'Der Einfluß
der Substrat-Micellisierung auf die Geschwindigkeit der Solvolyse
von 1-Methylheptyl-methansulfonat, in Dioxan-Wasser',
Chem. Ber. 1980, 113, 2424-2429.
8. H. Langhals, 'Bestimmung der Überlappung zwischen UV-Absorptionsspektrum
und Fluoreszenzspektrum',
Ber. Bunsenges. Phys. Chem. 1979, 83, 730-732.
7. H. Langhals, H. Fischer, 'Die Bildung von Semibenzolen bei
der Dimerisierung von Benzyl-Radikalen',
Chem. Ber. 1978, 111, 543-553.
6. V. Golzke, H. Langhals, C. Rüchardt, 'Bicyclo[3.2.2]nonan-
und Bicyclo[3.3.2]decan-1-carbonsäure',
Synthesis 1977, 675-676.
5. M. Julia, H. Langhals, B. Mansour, D. Mansuy, P. Mattei, 'Réactions
de substitution des sels d'alkoxy-4-pyridinium',
Tetrahedron Lett. 1976, 38, 3439-3442.
4. H. Langhals, M. Julia, D. Mansuy, 'Transformation aisée d'alcools
benzyliques en aldehydes arylacetiques',
Tetrahedron Lett. 1976, 39, 3519-3522.
3. H. Langhals, C. Rüchardt, 'Notiz zur präparativen
Decarboxylierung von Carbonsäuren durch Peresterthermolyse',
Chem. Ber. 1975, 108, 2156-2158.
2. Nguyen-Tran-Giac, H. Langhals, C. Rüchardt, 'Notiz zur
verbesserten Synthese und zur Thermochemie von cis- und trans-9-Decalincarbonsäure',
Chem. Ber. 1975, 108, 370-371.
1. H. Langhals, C. Rüchardt, 'Gezielte Synthese von
Homoadamantan-1- oder -3-carbonsäure durch Koch-Haaf-Synthese',
Chem. Ber. 1974, 107, 1245-1256.
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