کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1337190 1500277 2013 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, crystal structure and photo-induced isomerization of [N,N′-bis(4-fluorobenzylidene)ethylenediamine]bromo(triphenylphosphine)copper(I)
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Synthesis, crystal structure and photo-induced isomerization of [N,N′-bis(4-fluorobenzylidene)ethylenediamine]bromo(triphenylphosphine)copper(I)
چکیده انگلیسی

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.

The distorted-tetrahedral title complex is obtained as an EE isomer, but is converted to the ZZ form on visible irradiation, for which the rate constant and quantum yield have been determined.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polyhedron - Volume 62, 7 October 2013, Pages 61–65
نویسندگان
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