Molecular Tools for the Self-Assembly of Bisporphyrin Photodyads: A Comprehensive Physicochemical and Photophysical Study

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• 作者：Jrmy Brandel ; Ali Trabolsi ; Hassan Traboulsi ; Frdric Melin ; Matthieu Koepf ; Jennifer A. Wytko ; Mourad Elhabiri ; Jean Weiss ; Anne-Marie Albrecht-Gary
• 刊名：Inorganic Chemistry
• 出版年：2009
• 出版时间：April 20, 2009
• 年：2009
• 卷：48
• 期：8
• 页码：3743-3754
• 全文大小：323K
• 年卷期：v.48,no.8(April 20, 2009)
• ISSN：1520-510X

文摘

Accessible and hindered phenanthroline-strapped Zn(II) porphyrin receptors exhibited suitable topography tailored to strongly and selectively bind N₁-unsubstituted imidazoles and imidazoles appended to free-base porphyrins. Distal binding was clearly driven by the formation of strong bifurcated hydrogen bonds with the phenanthroline unit of the receptors. An extensive physicochemical study emphasized the influence of bulkiness of the substrate and of the porphyrin receptor on the binding and self-assembly mechanism. Knowledge of the corresponding spectroscopic, thermodynamic, and kinetic data were of fundamental importance to elucidate and to model the photoinduced properties which occur within the self-assembled porphyrin dyads.