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NMR and x-ray investigations of a plastic crystalline phase in MBBA

Arumugam, S and Bhat, SV and Kumar, N and Ramanathan, KV and Srinivasan, R (1985) NMR and x-ray investigations of a plastic crystalline phase in MBBA. In: Molecular crystals and liquid crystals, 126 (2-4). pp. 161-173.

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Wideline and high resolution NMR studies have been carried out on MBBA in its isotropic, nematic and solid phases. Isotropic and nematic phase 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. The X-ray results however 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: Molecular crystals and liquid crystals
Publisher: Taylor & Francis
Additional Information: Copyright of this article belongs to Taylor & Francis.
Department/Centre: Division of Chemical Sciences > Sophisticated Instruments Facility (Continued as NMR Research Centre)
Division of Physical & Mathematical Sciences > Physics
Date Deposited: 11 Jul 2008
Last Modified: 27 Aug 2008 13:34
URI: http://eprints.iisc.ac.in/id/eprint/14958

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