2024-03-28T16:48:25Z
https://teapot.lib.ocha.ac.jp/oai
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2022-12-12T06:02:58Z
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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
Intra-and intermolecular interaction in mesogenic cyano compounds
飯室, 瑞枝
栗林, 美樹
堀, 佳也子
IIMURO, Mizue
KURIBAYASHI, Miki
HORI, Kayako
open access
日本液晶学会
本文データは学協会の許諾に基づきCiNiiから複製したものである
420
物理学
application/pdf
学術雑誌論文
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.
日本液晶学会
1999-09-28
jpn
journal article
VoR
http://hdl.handle.net/10083/4694
https://teapot.lib.ocha.ac.jp/records/4950
http://ci.nii.ac.jp/naid/110001464294/
AA11639022
日本液晶学会討論会講演予稿集
1999
58
59
https://teapot.lib.ocha.ac.jp/record/4950/files/日本液晶学会討論会講演予稿集1999_飯室栗林堀.pdf
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289.6 kB
2018-04-26