Synthesis and Crystal Structure of One Novel Three-dimensional Supramolecular Compound [Ni(H2O)6(Fum)]•2(Hmt)•4H2O(Fum=Fumarate; Hmt=Hexamethylenetetramine)

The synthesis of nickel supramolecular compound with hexamethylenetetramine and fumarate ligands is reported. The compound [Ni(H2O)6(fum)]•2(hmt)•4H2O (1) (fum=fumarate; hmt=hexamethylenetetramine) were characterized by elemental analysis, crystal structure, IR. Compound 1 crystallizes in the triclinic system, space group P(average)1, and with Z=1. Cell parameters: α=0.9346(1), b=0.933 8(1), c=0.938 8(2) nm, α=79.46(1)°, β=77.84(1)°, γ=6l.296(7)°. Every metal ion has a octahedral coordination geometry formed by six oxygen atoms from six water molecules, and the relative independent components [Ni(H2O)6](superscript 2+), fumarate anions, hmt and H2O molecules are linked together by two kinds of hydrogen bonds (O-H…O, and O-H…N) to form a three-dimensional structure. CCDC: 256355.