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- IIMURO Mizue
- Graduate School of Humanities and Sciences, Ochanomizu University
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- KURIBAYASHI Miki
- Graduate School of Humanities and Sciences, Ochanomizu University
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- HORI Kayako
- Graduate School of Humanities and Sciences, Ochanomizu University
Bibliographic Information
- Other Title
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- 1C07 シアノ基をもつ液晶性物質の分子内および分子間相互作用
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Abstract
Crystal structures of 4-cyano-4'-alkylbiphenyls (nCB) and 4-cyano-4'-alkoxylbiphenyls (nOCB) show a different tendency: a remarkable even-odd effect for the former and dominant CN-CN interaction for the latter. In order to elucidate the difference between the two series, FT-IR spectra have been measured. CN stretching vibration frequencies for dilute solutions of CCl_4 (0.01 mol/l) are 0.5 cm^<-1> higher for nCB than for nOCB, giving a direct evidence of the different intramolecular interaction for isolated moleculeS. In mesophases, the frequencies on average are 1.0 cm^<-1> higher for nCB than for nOCB. Thus, the difference in mesophases (1.0 cm^<-1>) is larger than that for isolated molecules (0.5 cm^<-1>). Similar results were obtained for 4-cyanophenyl 4-alkoxybenzoates and 4-alkoxyphenyl 4-cyanobenzoates, showing the difference of intra- and intermolecular interactions due to the reversed directions of ester linkages with respect to the CN groups.
Journal
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- Proceedings of Japanese Liquid Crystal Society Annual meeting
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Proceedings of Japanese Liquid Crystal Society Annual meeting 1999 (0), 58-59, 1999
THE JAPANESE LIQUID CRYSTAL SOCIETY
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Keywords
Details
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- CRID
- 1390001205686509824
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- NII Article ID
- 110001464294
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- NII Book ID
- AA11639022
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- ISSN
- 24325988
- 18803490
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- HANDLE
- 10083/4694
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- CiNii Articles
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- Abstract License Flag
- Disallowed