Abstract
A simple but accurate method is proposed for the experimental determination of electron — molecular vibration (e-mv) coupling constants from the optical spectra of powdered samples of dimerized, segregated stack organic quasi-one-dimensional radical salts. By re-examining various TCNQ-based compounds a transferable set of coupling constants is obtained for this key molecular structure. The application of our method to TTF Br salt leads to TTF e-mv coupling constants which nicely compare with those determined from TTF-Chloranil.
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