(Carbonato-O,O ')bis(1,2-ethanediamine-N,N ')cobalt(III) nitrate monohydrate

The title compound, [Co(CO3)(C2H8)(2)](NO3).H2O, crystallizes with two form ula units in the asymmetric unit. Co-III is octahedrally coordinated to fou r N atoms of the ethanediamine moieties and to two O atoms of the carbonato group; Co-N distances range from 1.939 (1) to 1.960 (1) Angstrom and Co-O from 1.918 (1) to 1.931 (1) Angstrom, with mean distances of 1.952 and 1.92 7 Angstrom, respectively. The bites range from 85.78 (6) to 86.39 (6)degree s for ethanediamine and are 68.62 (5) and 68.47 (5)degrees for the carbonat e group. The two cations are not identical; in one cation one ethanediamine has the lambda configuration, while the other has the delta configuration, in the second cation both ethanediamine moieties have the same configurati on.