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1H NMR study of [N(CH3)4]2ZnCI4 at high pressures and low temperatures

Arumugam, S and Murthy, Kumari and Srlnlvasan, R and Bhat, SV (1987) 1H NMR study of [N(CH3)4]2ZnCI4 at high pressures and low temperatures. In: Phase Transitions, 9 (3). 259 -268.

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Abstract

Wide-line proton NMR studies on polycrystalline tetramethylammonium tetrachlorozincate have been carried out at high hydrostatic pressures up to 15 kbar in the temperature range 77-300 K and at ambient pressure down to 4.2 K. A second-moment transition is observed to occur starting around 161 K, the temperature for the V-VI phase transition. This transition temperature is seen to have a negative pressure coefficient up to 2 kbar, beyond which it changes sign. At 77 K the second moment decreases to 4 kbar and then increases again as a function of pressure. The results are explained in terms of the dynamics of the N(CH3)4 groups.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 16 Jun 2009 06:38
Last Modified: 16 Jun 2009 06:38
URI: http://eprints.iisc.ernet.in/id/eprint/20812

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