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metal-organic compounds
In the structure of the title complex, [Ni(C17H13N2O2)2(C3H7NO)2] or [Ni(PMBP)2(DMF)2], where HPMBP is 4-benzoyl-5-methyl-2-phenyl-2H-pyrazol-3(4H)-one, the CdII atom, which lies on an inversion centre, is in a distorted octahedral coordination environment. The metal is coordinated by four O atoms from the two symmetry-related chelating PMBP− ligands and O atoms from the two symmetry-related DMF ligands.
metal-organic compounds
In the crystal structure of the title complex, [Ni(C2N3)2(C3H7NO)2]n or [Ni(dca)2(DMF)2]n, where dca is dicyanamide and DMF is N,N-dimethylformamide, each NiII atom is six-coordinated in a distorted octahedral coordination environment. Four N atoms from four dca ligands fill the equatorial positions, and two O atoms from two DMF ligands fill the axial positions. The structure is isostructural with [Co(dca)2(DMF)2]n but is not isostructural with [Mn(dca)2(DMF)2]n. The NiII atom and the dicyanamide bridging ligand occupy special positions of symmetry 2/m and m, respectively. The structure consists of uniform neutral chains where neighbouring NiII atoms are connected through two asymmetric end-to-end dca bridges.
