Pressure-Induced Neutral–Ionic Phase Transition of a Tetrathiafulvalene–Iodanil Crystal
- 1 July 1991
- journal article
- Published by Oxford University Press (OUP) in Bulletin of the Chemical Society of Japan
- Vol. 64 (7) , 2052-2057
- https://doi.org/10.1246/bcsj.64.2052
Abstract
The pressure dependence of IR spectra measured for a mixed-stack neutral charge-transfer (CT) crystal, tetrathiafulvalene–iodanil (TTF–IA), showed an occurrence of a neutral–ionic (N–I) transition at 1.9 GPa. The N-I transition is accompanied by gradual dimerization of the crystal lattice and a small ionicity jump, in contrast to the case of TTF–chloranil (TTF–CA). Such a quasi-continuous N–I transition is attributable to stronger electron–lattice interaction in TTF–IA than that in TTF–CA.This publication has 23 references indexed in Scilit:
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