Δ4,4‘-Dicyclopenta[2,1-b:3,4-b‘]dithiophene. A Conjugated Bridging Unit for Low Band Gap Conducting Polymers

Δ4,4‘-Dicyclopenta[2,1-b:3,4-b‘]dithiophene. A Conjugated Bridging Unit for Low Band Gap Conducting Polymers

Δ4,4‘-Dicyclopenta[2,1-b:3,4-b‘]dithiophene has been prepared from cyclopenta[2,1-b:3,4-b‘]bithiophen-4-one and its electrochemical and spectroscopic properties have been characterized. Its low HOMO−LUMO gap and facile electrochemical polymerization make it an attractive building block for low band...

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Veröffentlicht in:Chemistry of materials 2003-05, Vol.15 (9), p.1918-1923
Hauptverfasser: Loganathan, Kavithaa, Cammisa, Eduardo G, Myron, Brent D, Pickup, Peter G
Format: Artikel
Sprache:eng
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Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
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container_end_page 1923
container_issue 9
container_start_page 1918
container_title Chemistry of materials
container_volume 15
creator Loganathan, Kavithaa
Cammisa, Eduardo G
Myron, Brent D
Pickup, Peter G
description Δ4,4‘-Dicyclopenta[2,1-b:3,4-b‘]dithiophene has been prepared from cyclopenta[2,1-b:3,4-b‘]bithiophen-4-one and its electrochemical and spectroscopic properties have been characterized. Its low HOMO−LUMO gap and facile electrochemical polymerization make it an attractive building block for low band gap conducting polymers. Films of poly-(Δ4,4‘-dicyclopenta[2,1-b:3,4-b‘]dithiophene) on electrodes have been characterized by cyclic voltammetry, electronic absorption spectroscopy, IR spectroscopy, and in situ conductivity measurements. The spectroscopic and electrochemical results confirm the formation of a polymeric material with long conjugation length and low band gap (ca. 0.5 eV). The intrinsic conductivity is consistent with this band gap.
doi_str_mv 10.1021/cm0218110
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subjects Applied sciences
Exact sciences and technology
Organic polymers
Physicochemistry of polymers
Polymers with particular properties
Preparation, kinetics, thermodynamics, mechanism and catalysts
title Δ4,4‘-Dicyclopenta[2,1-b:3,4-b‘]dithiophene. A Conjugated Bridging Unit for Low Band Gap Conducting Polymers
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