DocumentCode :
1879566
Title :
Comparing the spin density distribution in radical anions of several different oligomeric /spl pi/-chains
Author :
Baumgarten, M.
Author_Institution :
Max-Planck-Institut fur Polymerforschung
fYear :
1994
fDate :
24-29 July 1994
Firstpage :
16
Lastpage :
16
Abstract :
Summary form only given. We have studied the spin density distribution in a large number of radical ions, of oligomeric series of differently linked /spl pi/-systems as oligo-(ortho-, meta-, and paraphenylenevinylene)s la-c, oligoenes 2, -naphthylenes 3, -anthryienes 4, and -rylenos 5 by EPR/ENDOR and optical absorption spectroscopy. The results obtained show very different features depending on the geometry, the topology of the /spl pi/-systern, the chain ends and counter ion effects. Upon chain length extension both methods yield supplementary data allowing for a much deeper insight into characteristic molecular properties as limit of conjugation, bond length alternation patterns and structural reorganization upon charging.
Keywords :
Absorption; Conductivity; Geometrical optics; Lattices; Optical polymers; Optical solitons; Particle beam optics; Physics; Spectroscopy; Topology;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Science and Technology of Synthetic Metals, 1994. ICSM '94. International Conference on
Conference_Location :
Seoul, Korea
Type :
conf
DOI :
10.1109/STSM.1994.834653
Filename :
834653
Link To Document :
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