metal-organic compounds
In the crystal structure of the title complex, [Ni2(C10H20N4O2)(C12H12N2)2](ClO4)2 or [Ni(dmaeoxd)Ni(dmbp)2](ClO4)2 {H2dmaeoxd is N,N'-bis[2-(dimethylamino)ethyl]oxamide and dmbp is 4,4'-dimethyl-2,2'-bipyridine}, the deprotonated dmaeoxd2- ligand is in a cis conformation and bridges two NiII atoms, one of which is located in a slightly distorted square-planar environment, while the other is in an irregular octahedral environment. The cation is located on a twofold symmetry axis running through both Ni atoms. The dmaeoxd2- ligands interact with each other via C-HO hydrogen bonds and - interactions, which results in an extended chain along the c axis.
metal-organic compounds
The title compound, [Co(C4H4O5)(C6H6N4S2)(H2O)]·3H2O, displays a distorted octahedral coordination geometry. The tridentate oxydiacetate dianion chelates the CuII atom in the meridional mode. In the crystal packing, hydrophilic and hydrophobic layers are arranged in an alternating manner. In addition, a three-dimensional hydrogen-bonding framework and π–π stacking are present.
metal-organic compounds
In the crystal structure of the title complex, [CuNi(C10H20N4O2)(C12H8N2)2(H2O)](ClO4)2·0.5CH4O or [CuNi(dmaeoxd)(phen)2(H2O)](ClO4)2·0.5CH3OH {H2dmaeoxd is N,N'-bis[2-(dimethylamino)ethyl]oxamide and phen is 1,10-phenanthroline}, the deprotonated dmaeoxd2- ligand is in a cis conformation and bridges the CuII and NiII atoms. The CuII atom is located in a slightly distorted square-based pyramidal environment, while the NiII atom is in an irregular octahedral environment. The binuclear Cu-Ni units interact with each other via - interactions, which results in an extended chain along the b axis.