Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

Intrachain electron and energy transfer in conjugated organometallic oligomers and polymers

Language

English

Abstract

The synthesis of polymers of the type (-Cz-C≡C-PtL 2-C≡C-Cz-X-)n along with the corresponding model compounds (Ph-PtL′2-C≡C-Cz)2-X-, where Cz = 3.3′-carbazole, X = nothing, Cz, or F (2,2′-fluorene), L = PBu 3, and L′ = PEt3 are reported. The electronic spectra (absorption, excitation, emission, and ns-transient spectra) and the photophysics of these species in 2-methyltetrahyrofuran (2MeTHF) at 298 and 77 K are presented. Evidence for singlet electron and triplet energy transfer from the Cz chromophore to the F moiety are provided and discussed in detail. The rate for electron transfer is very fast (>4×1011 s -1), whereas that for triplet-triplet energy transfer is much slower (≈ 103s-1). This work represents a very rare example of studies that address electronic communication in the backbone of a conjugated organometallic polymer. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

Keywords

Alkynes, Electron transfer, Energy transfer, Fluorene, Metallopolymers, Phosphorescence, Platinum

Publication Date

2008

Source Publication Title

Chemistry - A European Journal

Volume

14

Issue

27

Start Page

8341

End Page

8352

Publisher

Wiley-VCH Verlag

DOI

10.1002/chem.200800304

Link to Publisher's Edition

http://dx.doi.org/10.1002/chem.200800304

ISSN (print)

09476539

ISSN (electronic)

15213765

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