Synthesis and Photovoltaic Properties of New Metalloporphyrin-Containing Polyplatinyne Polymers
作者： Hongmei Zhan , Simon Lamare , Annie Ng , Tommy Kenny , Hannah Guernon
DOI: 10.1021/MA2006206
关键词:
摘要: Three new solution-processable platinum(II) polyyne polymers containing zinc(II) porphyrinate chromophores P1, P2, and P3 their corresponding dinuclear model complexes were synthesized via the CuI-catalyzed dehydrohalogenation reaction of chloride precursor each respective bis(ethynyl)-zinc(porphyrin) metalloligands. The thermal, photophysical (absorption, excitation emission spectra), electrochemical, photovoltaic properties P1–P3 investigated. These results are also correlated by time-dependent density functional theory (TDDFT) calculations. computations corroborate presence moderate conjugation in π-systems, somewhat more accentuated for where favorable dihedral angles between porphyrin thiophene rings noted. Moreover, computed excited states predicted to be π–π* nature with some charge transfer components from trans-[−C≡CPt(L)2C≡C−]n unit rings. optical bandgaps range 1.93 2.0...
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