Experimental and theoretical charge density distribution in two ternary cobalt(III) complexes of aromatic amino acids.

The experimental charge density distributions in two optically active isomers of a Co complex have been determined. The complexes are Delta-alpha-[Co(R,R-picchxn)(R-trp)](ClO4)2.H2O) (1) and Lambda-beta1-[Co(R,R-picchxn)(R-trp)](CF3SO3)2) (2), where picchxn is N,N'-bis(2-picolyl-1,2-diaminocyclohexane) and R-trp is the R-tryptophane anion.