Theoretical analysis of the Raman spectra of PTV and PFV
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Detail(s)
Original language | English |
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Pages (from-to) | 209-213 |
Journal / Publication | Synthetic Metals |
Volume | 35 |
Issue number | 1-2 |
Publication status | Published - Feb 1990 |
Externally published | Yes |
Link(s)
Abstract
In this work, we report experimental Raman and IR results obtained on two different polymers composed of heteroaromatic rings separated by a vinyl group, namely poly(thienylene vinylene) (PTV) and poly(furylene vinylene) (PFV). PTV and PFV exhibit a rather similar behaviour and, in particular, in both cases the observed Raman bands undergo a slight shift when the excitation wavelength is changed from 676.7 to 457.9 nm. By using a dynamical model based on valence force field calculations, we have assigned all IR and Raman modes. In order to obtain a good set of force constants, we started calculations by considering those of polythiophene and, also, we used a model compound such as trans-bis(2-thienyl)ethylene. It was found that the numerical values given for these force constants are consistent with the electronic structure usually assigned for these polymers. © 1990.
Citation Format(s)
Theoretical analysis of the Raman spectra of PTV and PFV. / Mevellec, J. Y.; Buisson, J. P.; Lefrant, S. et al.
In: Synthetic Metals, Vol. 35, No. 1-2, 02.1990, p. 209-213.
In: Synthetic Metals, Vol. 35, No. 1-2, 02.1990, p. 209-213.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review