Infrared molecular-vibration spectra of tetrathiafulvalene-chloranil crystal at low temperature and high pressure
- 1 September 1987
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 36 (7), 3884-3887
- https://doi.org/10.1103/physrevb.36.3884
Abstract
Temperature () variations of the infrared molecular-vibration spectra of tetrathiafulvalene-chloranil (TTF-CA) crystalline powders have been measured at variable pressure (). From the observed behavior of the spectra as a function of and , it is concluded that both quasi-ionic and quasineutral molecules coexist in an intermediate range of and , until the crystal undergoes a phase transition to the dimerized ionic phase at which depends on . These results are discussed in terms of a phase diagram of TTF-CA crystal.
Keywords
This publication has 11 references indexed in Scilit:
- Electric conductivity and phase diagram of a mixed-stack charge-transfer crystal: Tetrathiafulvalene-p-chloranilPhysical Review B, 1987
- High-pressure studies of the neutral-to-ionic transition in some organic charge-transfer solidsChemical Physics Letters, 1986
- Neutral-ionic interface in mixed stack charge transfer compounds: Pressure induced ionic phase of tetrathiafulvalene-chloranil (TTF CA)Solid State Communications, 1986
- Pressure-induced neutral-to-ionic phase transition in TTF-p-chloranil studied by infrared vibrational spectrocopySolid State Communications, 1986
- Spectroscopic Study Of The Neutral-To-Ionic Phase Transition In Ttf-ChloranilMolecular Crystals and Liquid Crystals, 1985
- X-Ray Evidence for Molecular Dimerization at Neutral-Ionic Transition in TTF-ChloranilMolecular Crystals and Liquid Crystals, 1985
- Role of the Madelung energy in the neutral-ionic phase transition of tetrathiafulvalene chloranilJournal of the American Chemical Society, 1985
- Vibrational spectroscopy of mixed stack organic semiconductors: Neutral and ionic phases of tetrathiafulvalene–chloranil (TTF–CA) charge transfer complexThe Journal of Chemical Physics, 1983
- Anomalous Nature of Neutral-to-Ionic Phase Transition in Tetrathiafulvalene-ChloranilPhysical Review Letters, 1981
- Discovery of a Neutral-to-Ionic Phase Transition in Organic MaterialsPhysical Review Letters, 1981