Conformational effects on optical charge transfer in the emeraldine base form of polyaniline from electroabsorption measurements and semiempirical calculations

Lavanya L. Premvardhan; Sebastian Wachsmann-Hogiu; Linda A. Peteanu; David J. Yaron; Pen Cheng Wang; Wei Wang; Alan G. MacDiarmid

doi:10.1063/1.1388559

Conformational effects on optical charge transfer in the emeraldine base form of polyaniline from electroabsorption measurements and semiempirical calculations

Lavanya L. Premvardhan, Sebastian Wachsmann-Hogiu, Linda A. Peteanu, David J. Yaron, Pen Cheng Wang, Wei Wang, Alan G. MacDiarmid

Research output: Contribution to journal › Article

16 Scopus citations

Abstract

The effects of conformation on optical charge transfer in emeraldine base form of polyaniline were studied using electroabsorption measurements. The experiment was carried out in polymethyl methacrylate matrix at room temperature. The change in dipole moment on excitation and polarizability for electronic transitions was measured. Semiempirical calculations for varying geometries of oligomers were performed. The analysis identified low-energy conformers with large dipole moments caused by conformational heterogeneity.

Original language	English (US)
Pages (from-to)	4359-4366
Number of pages	8
Journal	Journal of Chemical Physics
Volume	115
Issue number	9
DOIs	https://doi.org/10.1063/1.1388559
State	Published - Sep 1 2001
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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Premvardhan, L. L., Wachsmann-Hogiu, S., Peteanu, L. A., Yaron, D. J., Wang, P. C., Wang, W., & MacDiarmid, A. G. (2001). Conformational effects on optical charge transfer in the emeraldine base form of polyaniline from electroabsorption measurements and semiempirical calculations. Journal of Chemical Physics, 115(9), 4359-4366. https://doi.org/10.1063/1.1388559

Conformational effects on optical charge transfer in the emeraldine base form of polyaniline from electroabsorption measurements and semiempirical calculations. / Premvardhan, Lavanya L.; Wachsmann-Hogiu, Sebastian; Peteanu, Linda A.; Yaron, David J.; Wang, Pen Cheng; Wang, Wei; MacDiarmid, Alan G.

In: Journal of Chemical Physics, Vol. 115, No. 9, 01.09.2001, p. 4359-4366.

Research output: Contribution to journal › Article

Premvardhan, Lavanya L. ; Wachsmann-Hogiu, Sebastian ; Peteanu, Linda A. ; Yaron, David J. ; Wang, Pen Cheng ; Wang, Wei ; MacDiarmid, Alan G. / Conformational effects on optical charge transfer in the emeraldine base form of polyaniline from electroabsorption measurements and semiempirical calculations. In: Journal of Chemical Physics. 2001 ; Vol. 115, No. 9. pp. 4359-4366.

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