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Synthesis, crystal structure and photo-induced isomerization of [N,N '-bis(4-fluorobenzylidene)ethylenediamine]bromo(triphenylphosphine)copper(I)

Lookup NU author(s): Professor Mohammad Habibi, Dr Ross Harrington, Emeritus Professor Bill CleggORCiD


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The title Schiff base complex is a model compound for photoisomerization reactions which occur in photobiological processes such as vision. The Schiff base ligand and the complex have been prepared in a one-pot synthesis. In the crystal structure of the complex, copper has a distorted tetrahedral coordination. Photochemical investigations in solution reveal time-resolved spectroscopic changes that are interpreted in terms of a transformation from E to Z configuration of the C=N bonds of the coordinated Schiff base ligand. Application of multivariate curve resolution and non-linear least squares curve fitting to the spectroscopic profiles provides a rate constant of 0.11 min(-1) for the photoisomerization and a quantum yield of 0.246. (c) 2013 Elsevier Ltd. All rights reserved.

Publication metadata

Author(s): Clegg W; Habibi MH; Harrington RW; Barati K; Montazerozohori M; Shafieyan H

Publication type: Article

Publication status: Published

Journal: Polyhedron

Year: 2013

Volume: 62

Pages: 61-65

Print publication date: 22/06/2013

ISSN (print): 0277-5387

ISSN (electronic): 1873-3719

Publisher: Pergamon


DOI: 10.1016/j.poly.2013.06.016


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