Abstract
Ambient and low temperature vibrational spectra of the known complex trans-Na[Rh(SO3)2(NH3)4]·2H2O (1) and the newly prepared fac-Na3[Rh(SO3)3(NH3)3]·2H2O (2) (both also in the deuterated form (1D) and (2D)) were measured and discussed. In both cases the spectra clearly show the effects of the real crystallographic symmetry of the complex entities.In accordance with the results of X-ray structure analyses of 1 and 2 the spectra reveal S-coordination of the sulfite ligands and consequently their trans-influence on the Rh–N bonds, also in terms of both valence vibration v(RhN4) and v(RhN3), respectively, and force constants f(Rh–N) derived from them.
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