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Absorption spectra of the anions of phenylenevinylene oligomers and polymer

Title data

Oberski, Josef M. ; Greiner, Andreas ; Bässler, Heinz:
Absorption spectra of the anions of phenylenevinylene oligomers and polymer.
In: Chemical Physics Letters. Vol. 184 (October 1991) Issue 5-6 . - pp. 391-397.
ISSN 1873-4448
DOI: https://doi.org/10.1016/0009-2614(91)80007-K

Official URL: Volltext

Abstract in another language

The absorption spectra of chemically prepared mono- and di-valent anions of phenylenevinylene oligomers and polymer are reported. The spectra consist of three features, each subject to vibronic splitting. Retaining their general character, the spectra shift towards lower energies with increasing chain length akin to the shift of the neutral molecule absorption bands. The spectrum of the monovalent polymer anion resembles the photoinduced absorption spectrum of polyphenylenevinylene suggesting that the latter is due to a monovalent rather than a divalent species. It is argued that no transitions among localized (polaron) and delocalized (band) states need to be invoked to interpret oligomer as well as polymer anion spectra.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: ISI:A1991GK13000007
Keywords: CONJUGATED POLYMERS; CONDUCTING POLYMERS; MODEL; POLYACETYLENE; SPECTROSCOPY; SOLITONS; POLARONS; SYSTEMS
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II > Chair Macromolecular Chemistry II - Univ.-Prof. Dr. Andreas Greiner
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Macromolecular Chemistry II
Result of work at the UBT: No
DDC Subjects: 500 Science > 540 Chemistry
Date Deposited: 17 Apr 2015 08:23
Last Modified: 17 Apr 2015 08:23
URI: https://eref.uni-bayreuth.de/id/eprint/10334