SPECTRAL INVESTIGATION OF THE PENTAMERIZED TCNQ ION-RADICAL SALT OF P-DIPHENYL METHYL PHOSPHONIUM-N,N-DIMETHYL ANILINE

Authors
GARRIGOULAGRANGE C LEQUAN M LEQUAN RM YARTSEV VM
Citation
C. Garrigoulagrange et al., SPECTRAL INVESTIGATION OF THE PENTAMERIZED TCNQ ION-RADICAL SALT OF P-DIPHENYL METHYL PHOSPHONIUM-N,N-DIMETHYL ANILINE, Journal de chimie physique et de physico-chimie biologique, 90(9), 1993, pp. 1749-1770
Citations number
30
Categorie Soggetti
Biology,"Chemistry Physical
Journal title
Journal de chimie physique et de physico-chimie biologique → ACNP
Volume
90
Issue
9
Year of publication
1993
Pages
1749 - 1770
Database
ISI
SICI code
Abstract
Absorption spectra of TCNQ salts with p-diphenyl methyl phosphonium-N, N-dimethyl aniline (DPMA) cation for two stoichiometries 1:1 and 2:5 a re measured in the spectral range from 400 to 25000 cm-1. The assignme nt of vibrational infrared bands is proposed. Cluster approach is used for theoretical description of DPMA2-TCNQ5. Electronic correlations a re taken into account explicitly in the Hubbard model for two electron s in a linear pentamer. Calculated absorbance is compared to the measu red one and electron-molecular vibration coupling parameters are obtai ned.