Open-Framework Nickel Succinate, [Ni7(C4H4O4)6(OH)2(H2O)2]⋅2 H2O: A New Hybrid Material with Three-Dimensional Ni−O−Ni Connectivity

Hydrophobic, one-dimensional channels with voids supported by a three-dimensional Ni-O-Ni framework occur in an open-framework modification of nickel succinate that was prepared by biphasic solvothermal synthesis and characterized by single-crystal X-ray diffraction (see picture; green: NiO6 octahedra, red: oxygen). The unbound and coordinated water molecules are shown to leave the structure above 200°C, and the structure persists to 425°C.