Donor acceptor interactions occurring in solutions of polymeric viologenes

In solutions of polyepichlorohydrin modified by N-butylpyridinepyridinium bromide in DMF there were found to be charge transfer complexes of three types between dipyridilium dications and halide anions. These three types differ as to the position of the charge transfer bands in the absorption spectr...

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Bibliographic Details
Published in:Polymer science USSR 1985, Vol.27 (5), p.1195-1203
Main Authors: Ivanov, V.F., Tverskoi, V.A., Timofeyeva, G.V., Pravednikov, A.N.
Format: Article
Language:English
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Summary:In solutions of polyepichlorohydrin modified by N-butylpyridinepyridinium bromide in DMF there were found to be charge transfer complexes of three types between dipyridilium dications and halide anions. These three types differ as to the position of the charge transfer bands in the absorption spectra. Complexes are formed more rapidly in air in view of the coordinating action of atmospheric oxygen. The presence of oxygen coordinated with the complexes results in a higher quantum yield of formation of products of complete electron transfer under the action of light in charge transfer bands. Differences were detected in the polymeric viologenes in the case of complexation of halide-anions with dipyridilium dications in DMF compared with the low molecular analogoues.
ISSN:0032-3950
1878-268X
DOI:10.1016/0032-3950(85)90401-0