
%0 Journal Article
%A Bryant, GM 
%A Fergusson, JE 
%T Charge-transfer and intraligand electronic spectra of bipyridyl complexes of iron, ruthenium, and osmium. II. Tervalent complexes
%J Australian Journal of Chemistry
%D 1971/02/01
%V 24
%N 2
%P 275-286
%K 
%R https://doi.org/10.1071/CH9710275
%U https://www.publish.csiro.au/paper/CH9710275 
%X The electronic spectra of a series of six-coordinate octahedral tris-, bis-, and mono-bipyridyl complexes of tervalent iron, ruthenium, and osmium have been recorded and spectral bands assigned to intraligand and charge-transfer transitions. The tris-bipyridyl complexes and bis- and mono-bipyridyl complexes containing other ligands such as pyridine and cyanide show a metal reduction transition &#960;(bipy) &#8594; t2(metal). Bipyridyl complexes of osmium containing halide ligands show a similar transition, but for the corresponding complexes of iron and ruthenium the metal reduction transition is now X(halogen) &#8594; t2(metal), the electron originating on the halide ligand. Bipyridyl-acetylacetonate complexes have more complicated spectra. Trends in the spectral bands, for all the complexes, indicate that of the three metal ions ruthenium probably forms the strongest M&#8594;L &#960;-interaction. 
