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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/2495

Title: Temperature variation of the layer spacing in the smectic A, reentrant nematic and reentrant smectic A phases of 9 OBCAB
Authors: Suresh, K.A.
Shashidhar, R.
Heppke, G.
Hopf, R.
Issue Date: Oct-1983
Publisher: Gordon and Breach Science Publishers.
Citation: Molecular Crystals and Liquid Crystals, 1983, Vol.99, p249-253
Abstract: Precise X-ray determinations have been made of the temperature variation of the layer spacing in the smectic A, reentrant nematic and reentrant smectic A phases of a pure reentrant mesogen, viz., 4-nonyloxy-benzoyloxy-4'-cyanoazobenzene (9 OBCAB). The higher temperature smectic phase is (partially) bilayer in nature, the extent of the overlap increasing with decrease of temperature. The reentrant smectic A has a monolayer structure whose spacing is temperature independent. The change from the bilayer to monolayer arrangement is a continuous process which commences in the reentrant nematic phase and continues right through it.
Description: Restricted Access. Paper presented at the 9th international conference on liquid crystals held at Bangalore in 1982.
URI: http://hdl.handle.net/2289/2495
ISSN: 1058-725X
Alternative Location: http://dx.doi.org/10.1080/00268948308072046
Copyright: 1983 OPA (Overseas Publishers Association) N.V.
Appears in Collections:Research Papers (SCM)

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