Effect of Nonchromophoric Ligands on the Spectral Characteristics of Ruthenium(II) (2,2'-Bipyridine)diphosphine Complexes.

Autor: Ershov, A., Litke, S., Litke, A., Mezentseva, T., Grigor'ev, Ya., Lyalin, G.
Zdroj: Russian Journal of General Chemistry; Aug2002, Vol. 72 Issue 8, p1164-1166, 3p
Abstrakt: The electronic absorption and luminescence spectra of the complexes cis-[Ru(bpy)(dppe)X2] [bpy is 2,2'-bipyridine, dppe is 1,2-bis(diphenylphosphino)ethane] in 4 : 1 ethanol-methanol mixtures at 77 and 293 K were measured, and the luminescence decay times were determined. As the field strength of the nonchromophoric ligand X increases in the order I- < Br- < Cl- < 1/2(CO3 2 -) < NCS- < NO2 - < CN-, the electronic transitions are blue-shifted, and the luminescence decay time becomes longer. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index