catena-Poly[[[N,N′-bis(salicylidene)propane-1,3-diaminato]cobalt(III)]-μ-aazido] and catena-poly[[[N,N′-bis(salicylidene)propane-1,3-diaminato]cobalt(III)]-μ-thiocyanato]

The two title complexes, catena-poly[[{2,2'-[1,3-propanediylbis( nitrilomethylidyne)] diphenolato} cobalt(III)]-mu-azido], [Co( C17H16N2O2)(N-3)](n), ( I), and catena-poly[[{2,20-[1,3-propanediylbis( nitrilomethylidyne)] diphenolato} cobalt( III)]-mu-thiocyanato], [Co(C17H16N2O2)(NCS)](n), ( II), are isomorphous polynuclear cobalt( III) compounds. In both structures, the Co III atom is six-coordinated in an octahedral configuration by two N atoms and two O atoms of one Schiff base, and two terminal N or S atoms from two bridging ligands. The [N, N'-bis( salicylidene) propane-1,3-diaminato] cobalt( III) moieties are linked by the bridging ligands, viz. azide in ( I) and thiocyanate in ( II), giving zigzag polymeric chains with backbones of the type [-Co - N - N - N - Co](n) in (I) or [- Co - N - C - S - Co](n) in (II) running along the c axis.