Oligo(2,5‐thienyleneethynylene)s with Terminal Donor‐Acceptor Substitution | Zendy

Meier Herbert | Zendy; Mühling Bastian | Zendy; Oehlhof Annette | Zendy; Theisinger Sonja | Zendy; Kirsten Enzio | Zendy

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Oligo(2,5‐thienyleneethynylene)s with Terminal Donor‐Acceptor Substitution

Author(s) -

Meier Herbert,

Mühling Bastian,

Oehlhof Annette,

Theisinger Sonja,

Kirsten Enzio

Publication year - 2006

Publication title -

european journal of organic chemistry

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.825

H-Index - 155

eISSN - 1099-0690

pISSN - 1434-193X

DOI - 10.1002/ejoc.200500449

Subject(s) - chemistry , intramolecular force , acceptor , chromophore , conjugated system , substitution (logic) , absorption (acoustics) , stereochemistry , photochemistry , organic chemistry , polymer , physics , computer science , acoustics , programming language , condensed matter physics

Five oligo(2,5‐thienyleneethynylene) series (OTE, n = 1–5), namely the push‐pull substituted compounds 1b ‐ 5b and 1c ‐ 5c , the purely donor substituted compounds 1a ‐ 5a and two precursor series with protected and deprotected ethynyl end‐groups, respectively, were obtained by a convergent synthetic strategy. The extension of the conjugated chromophores in the donor‐acceptor OTE (DAOTE) series is superimposed by an intramolecular charge transfer (ICT), which decreases with an increasing number, n , of repeat units. The overall effect is studied by the convergence of the UV/Vis absorption maxima λ max ( n ) → λ ∞ for n → ∞.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)

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