
%0 Journal Article
%A Ferguson, J 
%A Gudel, HU 
%T SPECTROSCOPIC STUDIES OF EXCHANGE INTERACTIONS IN
POLYNUCLEAR TRANSITION METAL COMPLEXES I. [(NH<sub>3</sub>)<sub>5</sub>Cr(OH)Cr(NH<sub>3</sub>)<sub>5</sub>] Cl<sub>5</sub>,3H<sub>2</sub>0.
%J Australian Journal of Chemistry
%D 1973/03/01
%V 26
%N 3
%P 505-511
%K 
%R https://doi.org/10.1071/CH9730505
%U https://www.publish.csiro.au/paper/CH9730505 
%X Large single crystals of ,u-hydroxo-bis[pentaamminechromium(III) chloride trihydrate have been prepared and their spectroscopic properties determined. The analysis of polarized single-crystal luminescence spectra provides an accurate ground electronic level scheme for the weakly coupled chromium ions in the dimeric cluster. The splitting is described by the isotropic Hamiltonian X = JS,.Sb-j(S,.Sb)2 with J = 31.9 cm-1 and j = 0.23 cm-1. The temperature dependence of the polarized absorption spectrum is consistent with this level scheme. The positions of the components of the singly excited (4A2-2E) state have been determined. 
