Observations of a plastic crystalline phase in solid MBBA

Armugam, S and Bhat, SV and Kumar, N and Ramanathan, KV and Srinivasan, R (1985) Observations of a plastic crystalline phase in solid MBBA. In: Proceedings of Indian Academy of Sciences: Chemical Sciences, 95 (1-2). pp. 39-47.

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Abstract

Wideline and high resolution NMR studies have been carried out in MBBA in its isotropic, nematic and solid phases. Isotropic and nematic spectra correspond to what has been reported earlier. In the solid phase, contrary to expectations, very intense narrow signals similar to signals of the isotropic phase have been observed for the first time at temperatures close to the solid \leftrightarrow nematic phase transition temperature. This indicates rapid reorientational or translational motion in the system. X-ray results, owever, confirm the existence of translational order. The results are interpreted as indicative of the existence of a plastic crystalline phase in MBBA.

Item Type:	Journal Article
Publication:	Proceedings of Indian Academy of Sciences: Chemical Sciences
Publisher:	Indian Academy of Sciences
Additional Information:	Copyright of this article belongs to Indian Academy of Sciences.
Department/Centre:	Division of Chemical Sciences > Sophisticated Instruments Facility (Continued as NMR Research Centre) Division of Physical & Mathematical Sciences > Physics
Date Deposited:	25 Jul 2008
Last Modified:	19 Sep 2010 04:47
URI:	http://eprints.iisc.ac.in/id/eprint/15128

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