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A new conducting charge transfer complex from a model thiophene oligomer and a Keggin‐type heteropolyanion
Author(s) -
Fabre Bruno,
Bidan Gérard
Publication year - 1993
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.19930050911
Subject(s) - electrochromism , thiophene , materials science , oligomer , dopant , conjugated system , redox , conductive polymer , polymer , ion , charge (physics) , polymer chemistry , photochemistry , organic chemistry , doping , chemistry , electrode , optoelectronics , metallurgy , composite material , physics , quantum mechanics
A conducting charge transfer complex between a sexithienyl radical cation and a Keggin‐type heteropolyanion (PMo 12 O ⊖ 40 ) has been synthesized and characterized. These large inorganic ions confer new properties on polymers to which they are linked, for example, multiple redox exchanges, paramagnetism, electrochromism, and catalytic action. The thiophene hexamer is the best compromise between a long‐conjugated system and a processable material, and can be considered a typical poly(thiophene) model, thus allowing a better understanding of the electronic interactions between the conducting polymer poly(3‐methylthiophene) and the dopant anion PMo 12 O ⊖ 40 .