Proton NMR Study Of Bis(tetramethylammonium) Tetrachlorozincate At High Pressures And Low Temperatures

Content Provider	Indian Institute of Science (IISc)
Author	Arumugam, S. Kumari, Murthy Srinivasan, R. Bhat, S. V.
Copyright Year	1987
Abstract	Wide-line proton NMR studies on polycryst. bis(tetramethylammonium) tetrachlorozincate were carried out at high hydrostatic pressures up to 15 kbar at 77-300 K and at ambient pressure down to 4.2 K. A 2nd-moment transition is obsd. to occur starting around 161 K, the temp. for the V-VI phase transition. This transition temp. has a neg. pressure coeff. up to 2 kbar, beyond which it changes sign. At 77 K, the 2nd 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 $N(CH_3)_4$ groups.
File Format	PDF
Journal	PeerReviewed
Language	English
Publisher	Taylor and Francis Group
Publisher Date	1987-01-01
Access Restriction	Authorized
Subject Keyword	Physics
Content Type	Text
Resource Type	Article