Synthesis, crystal structure and photo-induced isomerization of [N,N¡ä-bis(4-fluorobenzylidene)ethylenediamine]bromo(triphenylphosphine)copper(I)
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- 作者：Kazem Barati ; Mohammad Hossein Habibi ; Morteza Montazerozohori ; Hooshang Shafieyan ; Ross W. Harrington ; William Clegg
- 关键词：Schiff base ; Copper(I) complex ; Tetrahedral coordination ; Photo-induced isomerization ; Rate constant
- 刊名：Polyhedron
- 出版年：2013
- 出版时间：7 October, 2013
- 年：2013
- 卷：62
- 期：Complete
- 页码：61-65
- 全文大小：1047 K
文摘
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 CN 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.