Spectroscopic study of liquid crystals in confined volume

Autor:	G. A. Puchkovskaya, L. A. Matkovskaya, Jakub Baran, T. Morawska-Kowal, I. I. Gnatyuk, Henryk Ratajczak, Oleg Yaroshchuk, Yu. G. Gol'tsov
Rok vydání:	1999
Předmět:	Chemistry Stereochemistry Overtone Organic Chemistry Infrared spectroscopy Porous glass Molecular sieve Spectral line Analytical Chemistry Inorganic Chemistry Chemical physics Liquid crystal Molecule Porosity Spectroscopy
Zdroj:	Journal of Molecular Structure. :189-197
ISSN:	0022-2860
DOI:	10.1016/s0022-2860(99)00159-3
Popis:	IR absorption spectra of nematic liquid crystal, pentylcyanobiphenyl (5CB), dispersed in porous glass and molecular sieves of types Si, Al–MCM-41 and Cu–Si, Al–MCM-41 (diameter of pores is about 40 A) have been investigated in the region of fundamental and overtone vibrations. Mechanism of interaction between a part of 5CB molecules and active centers of porous interface was estimated. In this case, enough strong interaction between the cyano groups of 5CB and hydroxyl groups of the channel surface is realized. It was also shown that another part of the 5CB molecule exists in the liquid crystal state and its amount depends on the size and nature of the pores.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::463e0757cfe48f1a86feb64fa1bf0d7e https://doi.org/10.1016/s0022-2860(99)00159-3 Zobrazit plný text záznamu Full Text from ScienceDirect