Document Type

Journal Article

Department/Unit

Department of Chemistry

Title

Synthesis, optical properties and photophysics of group 10–12 transition metal complexes and polymer derived from a central tris(p-ethynylphenyl)amine unit

Language

English

Abstract

A new series of luminescent group 10-12 metal alkynyl complexes and polyyne polymer containing a central tris(p-ethynylphenyl)amine bridging chromophore were prepared. The regiochemical structures of these triangular-shaped trinuclear compounds and polymer were studied by various spectroscopic and photophysical analyses. Upon photoexcitation, each of them emits an intense purple-blue fluorescence emission in the near UV region in dilute fluid solutions at room temperature. Harvesting of organic triplet emissions observed in the low-energy region harnessed through the strong heavy-atom effects of group 10-12 transition metals was examined and the results were compared among these three neighboring late transition metal elements. The influence of group 15 nitrogen-based heteroatom on the intersystem crossing rate and the spatial extent of the lowest singlet and triplet excitons was fully elucidated and a comparison was made to the nearest group 14 and 16 neighbors in the same row of the Periodic Table. © 2008 Springer Science+Business Media, LLC.

Keywords

Alkyne, Metallopolyyne, Transition metal, Triphenylamine, Triplet emission

Publication Date

2009

Source Publication Title

Journal of Inorganic and Organometallic Polymers and Materials

Volume

19

Issue

1

Start Page

46

End Page

54

Publisher

Springer Verlag

DOI

10.1007/s10904-008-9233-9

Link to Publisher's Edition

http://dx.doi.org/10.1007/s10904-008-9233-9

ISSN (print)

15741443

ISSN (electronic)

15741451

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