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Proton NMR T-1 studies in methylammonium trichloro stannate(II) (CH3NH3SnCl3)

Kumaran, Senthil S and Ramesh, KP and Ramakrishna, J (2002) Proton NMR T-1 studies in methylammonium trichloro stannate(II) (CH3NH3SnCl3). In: Phase Transitions: A Multinational Journal, 75 (6). 597-605 .

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Official URL: http://tandfprod.literatumonline.com/doi/abs/10.10...

Abstract

Proton spin lattice relaxation time (T-1) measurements have been carried out in methylammonium trichloro stannate(II) (CH3NH3SnCl3) as a function of temperature in the range 317-5 K at a Larmor frequency of 10 MHz. The temperature dependence of T-1 shows a phase transition around 220 K and four T-1 minima (294 K, 62 K, 32 K and 12 K). The results are discussed in terms of proton dynamics, namely, uncorrelated reorientation of NH3 and CH3 groups at high temperatures and tunnelling of NH3 and CH3 protons at low temperatures.

Item Type: Journal Article
Publication: Phase Transitions: A Multinational Journal
Publisher: Taylor and Francis Group
Additional Information: Copyright of this article belongs to Taylor and Francis Group.
Keywords: Phase transition;Proton tunnelling;Uncorrelated reorientation;Nuclear spin lattice relaxation time
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 03 Aug 2011 13:08
Last Modified: 03 Aug 2011 13:08
URI: http://eprints.iisc.ac.in/id/eprint/39370

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