M. Vitale
Oct 1, 2001
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Influential Citations
194
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Journal
Coordination Chemistry Reviews
Abstract
Abstract The photophysical properties of neutral adducts of CuI and the N-bound ligands pyridine (py) and piperidine (pip) of the type Cu n X n L m were studied as a function of the concentrations of the ligand L. For L=py, variation in the UV–Vis absorption and luminescence spectroscopic properties as a function of ligand concentration is rationalized as the result of labile equilibria involving several species, most prominently the dinuclear complex Cu 2 I 2 (py) 2 and the ‘cubane’ cluster Cu 4 I 4 py 4 . The ease of ligand exchange in solution was exploited for the self-assembly of mixed-ligand tetrameric compounds Cu 4 I 4 (py) n (pip) m (where n + m =4), which were identified through their photophysical properties. Factors determining these emission properties are discussed.