Raman study of a liquid crystalline gel consisting of photochromic 4‐methyl‐N‐(4‐n‐heptyloxysalicylidene)aniline and a gelling agent (R,R′)‐1,2‐bis(dodecanoylamino)cyclohexane
作者： K. Miyakawa , I. Ishizu , T. Koga , S. Sakagami , A.. TAKASE
DOI: 10.1080/02678290500036359
关键词:
摘要: A liquid crystalline physical gel has been prepared from the mixture of a nematic crystal and low molecular mass gelling agent containing hydrogen‐bonding moiety. The newly synthesized compound exhibited photochromism in solid phase. Although was not observed state mixture, lifetime phase became longer, compared with that single compound. Some Raman bands showed marked change both intensity frequency through transitions. These have assigned to vibrational modes related core part molecule.
sci-hub.se 参考文章(29)
G. Varsányi, Vibrational Spectra of Benzene Derivatives ,(1969)
H Yokoyama Edited by, Peter Collings, J.S. Patel, Handbook Of Liquid Crystal Research Oxford University Press. ,(1997)
Eugene Hadjoudis, Photochromic and thermochromic anils Molecular Engineering. ,vol. 5, pp. 301- 337 ,(1995) , 10.1007/BF01004014
J. W. Lewis, C. Sandorfy, An infrared study of the photoisomerization of N-benzylideneaniline Canadian Journal of Chemistry. ,vol. 60, pp. 1720- 1726 ,(1982) , 10.1139/V82-235
X. Yang, D. A. Waldman, S. L. Hsu, S. A. Nitzsche, R. Thakur, D. M. Collard, C. P. Lillya, H. D. Stidham, SPECTROSCOPIC CHARACTERIZATION OF MESOGEN ORDER IN DISCOTIC LIQUID-CRYSTAL Journal of Chemical Physics. ,vol. 89, pp. 5950- 5955 ,(1988) , 10.1063/1.455546
A. Bhattacharjee, P. R. Alapati, A. L. Verma, Dynamics of phase transitions in a liquid crystal probed by Raman spectroscopy Liquid Crystals. ,vol. 28, pp. 1315- 1320 ,(2001) , 10.1080/02678290110038201
N. Kirov, M. P. Fontana, F. Cavatorta, H. Ratajczak, IR, FIR, Ramna and Thermodynamic Investigations of p-n-Alkokybenzoic Acides in Their Solid, Mesomorphic and Isotropic Phases Molecular Crystals and Liquid Crystals. ,vol. 75, pp. 303- 320 ,(1981) , 10.1080/00268948108073622
Gérard Vergoten, Guy Fleury, Spectroscopie Vibrationnelle de Cristaux Liquides: 1 spectres Raman de la (p-méthoxy)benzylidène (p-n-butyl)aniline (MBBA) dans les phases solide, nematique et liquide isotrope Molecular Crystals and Liquid Crystals. ,vol. 30, pp. 213- 222 ,(1975) , 10.1080/15421407508083433
Rob H. C. Janssen, Volker Stümpflen, Dirk J. Broer, Cees W. M. Bastiaansen, Theo A. Tervoort, Paul Smith, Electrically controlled light scattering from thermoreversible liquid-crystal gels Journal of Applied Physics. ,vol. 88, pp. 161- 167 ,(2000) , 10.1063/1.373636
A. Takase, K. Nonaka, T. Koga, S. Sakagami, study of liquid crystalline N -[4-(4- n -alkoxybenzoyloxy)-2-hydroxybenzylidene]methylanilines Liquid Crystals. ,vol. 29, pp. 605- 611 ,(2002) , 10.1080/02678290210121540