Pressure Dependence of Triplet Excitons In (NPQn).5 (NBQn).5 (TCNQ)2

Autor: Forro, L., Sekretarczyk, G., Krupski, M.
Zdroj: Molecular Crystals and Liquid Crystals; March 1985, Vol. 120 Issue: 1 p115-119, 5p
Abstrakt: N-Propyl-Qn (TCNQ)2, alloyed with N-Butyl-Qn (TCNQ)2 shows the characteristic two Tine ESR spectra due to thermally excited triplet excitones. We have performed the pressure dependence (up to 5 kbars) of zero-field splitting parameters, singlet-triplet activation energy and exchange parameters. The drastic decrease of the susceptibility and linewidth has been attributed to the increased singlet-triplet activation energy 80K/kbars. The activation energy for the exciton propagation decreases on pressure with the rate of 36 K/kbars.
Databáze: Supplemental Index