691413-56-6Relevant articles and documents
Synthesis and photophysical properties of copper(I) complexes obtained from 1,10-phenanthroline ligands with increasingly bulky 2,9-substituents
Accorsi, Gianluca,Armaroli, Nicola,Duhayon, Carine,Saquet, Alix,Delavaux-Nicot, Beatrice,Welter, Richard,Moudam, Omar,Holler, Michel,Nierengarten, Jean-Francois
experimental part, p. 164 - 173 (2010/04/01)
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]1,1.0-phenanthroline (1), 2,9-bis[(triisopropylsilyloxy)methyl]-l,1.0-phenanthrollne (2), 2,9-bis[(tert-butyldiphenylsilylmoxy)ethyl]-l,10-phenanthroline (3), 2,9-bis[2,6-bis(benzyloxy)phenethyl]-l,10-phenanthroline (4) and 2-(l,3-diphenylpropan-2-yl)-9-phenethyl-l,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.
