MOLECULAR ROTATION IN HEXATIC-B MESOPHASE STUDIED BY THE EPR METHOD

Authors
BIKCHANTAEV I SZYDLOWSKA J POCIECHA D KROWCZYNSKI A GORECKA E
Citation
I. Bikchantaev et al., MOLECULAR ROTATION IN HEXATIC-B MESOPHASE STUDIED BY THE EPR METHOD, Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals, 303, 1997, pp. 121-126
Citations number
24
Categorie Soggetti
Crystallography
Journal title
Molecular crystals and liquid crystals science and technology. Section A, Molecular crystals and liquid crystals → ACNP
ISSN journal
1058725X
Volume
303
Year of publication
1997
Pages
121 - 126
Database
ISI
SICI code
1058-725X(1997)303:<121:MRIHMS>2.0.ZU;2-7
Abstract
Molecular motions have been examined by EPR method in materials with t he SmA-HexB-CryB phase sequence doped by paramagnetic copper (II) comp lex. It has been found that while in the SmA phase molecules rotate fr eely around their long molecular axes in the hexatic phase rotation ca n be either free or restricted. The restricted rotation is likely attr ibuted to the herring-bone packing of the molecules in smectic layer.