化学
菲咯啉
电化学
猝灭(荧光)
光化学
铜
发光
吸收光谱法
药物化学
立体化学
结晶学
物理化学
有机化学
荧光
电极
物理
量子力学
光电子学
作者
Gianluca Accorsi,Nicola Armaroli,Carine Duhayon,Alix Sournia‐Saquet,Béatrice Delavaux‐Nicot,R. Welter,Omar Moudam,Michel Holler,Jean‐François Nierengarten
标识
DOI:10.1002/ejic.200900954
摘要
Abstract In this paper, we describe the synthesis and the electronic properties of a series of [Cu(NN) 2 ] + systems. The NN ligands investigated are 2,9‐bis[( tert ‐butyldimethylsilyloxy)methyl]‐1,10‐phenanthroline ( 1 ), 2,9‐bis[(triisopropylsilyloxy)methyl]‐1,10‐phenanthroline ( 2 ), 2,9‐bis[( tert ‐butyldiphenylsilylmoxy)ethyl]‐1,10‐phenanthroline ( 3 ), 2,9‐bis[2,6‐bis(benzyloxy)phenethyl]‐1,10‐phenanthroline ( 4 ) and 2‐(1,3‐diphenylpropan‐2‐yl)‐9‐phenethyl‐1,10‐phenanthroline ( 5 ). The electrochemical properties and the ground state electronic absorption spectra of Cu(1) 2 – Cu(5) 2 are in line with the classical behaviour of such [Cu(NN) 2 ] + derivatives. Whereas all the compounds exhibit MLCT luminescence centered around 630–650 nm, the emission quantum yields and the lifetimes are dramatically different as a function of stereoelectronic effects and/or the possibility of internal exciplex quenching when oxygen‐containing functional groups are attached to the phenanthroline ligands.
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