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 journalArticle

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 languageEnglish (US)
Pages (from-to)4359-4366
Number of pages8
JournalJournal of Chemical Physics
Volume115
Issue number9
DOIs
StatePublished - Sep 1 2001
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Fingerprint Dive into the research topics of 'Conformational effects on optical charge transfer in the emeraldine base form of polyaniline from electroabsorption measurements and semiempirical calculations'. Together they form a unique fingerprint.

  • Cite this