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Construction of Donor–Acceptor Chromophores in Platinum Polyyne Polymer by [2 + 2] Cycloaddition of Organic Acceptors
Author(s) -
Yuan Yuping,
Michinobu Tsuyoshi
Publication year - 2012
Publication title -
macromolecular chemistry and physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.57
H-Index - 112
eISSN - 1521-3935
pISSN - 1022-1352
DOI - 10.1002/macp.201200316
Subject(s) - tetracyanoethylene , photochemistry , chromophore , platinum , cycloaddition , chemistry , acceptor , adduct , polymer , electrochemistry , polymer chemistry , thiophene , molecule , tetracyanoquinodimethane , electron acceptor , redox , cyclic voltammetry , catalysis , inorganic chemistry , organic chemistry , electrode , physics , condensed matter physics
A thiophene‐containing platinum polyyne polymer was postfunctionalized by a [2 + 2] cycloaddition followed by a cycloreversion of tetracyanoethylene (TCNE) or 7,7,8,8‐tetracyanoquinodimethane (TCNQ), yielding narrow band gap polymers. The quantitative addition of the acceptor molecules was confirmed by combined analytical techniques. The postfunctionalized platinum polyyne polymers displayed charge‐transfer (CT) bands in the visible‐near IR region and potent redox activities. The TCNQ adduct has a stronger electron‐accepting feature than the TCNE adduct, as revealed by the more bathochromically shifted CT band and the lower first reduction potential. The systematic investigation revealed a clear correlation between the optical and electrochemical band gaps.