Hydrothermal Synthesis and Crystal Structure of a Copper Complex

The title compound [Cu(IB)2]n·n(H2O)1 was synthesized via the hydrothermal reaction of CuSO4·5H2O and NaOH with 4-(1H-Imidazol-1-yl)benzoic acid (HIB), and characterrized by elemental analysis and infrared spectra. The crystal of 1 crystallizes in monoclinic, space group C2/c with a = 14.349(7), b=5.977(3),c=21.368(9)(A°),β=104.956(9)°,V= 1770.5(2)A3,Z=4, C20H16CuN4O5,Mr=455.92,Dc=1.710 g/cm3,F(000)=932 andμ(MoKα)=1.279 mm-1.The final R=0.0337and wR=0.0888 for 1972 observed reflections with I>20(I)and R=0.0369 and wR=0.0926 for all data. X-ray diffraction reveals that the IB ligand links the Cu(Ⅱ)atoms into a double stranded chain. The extensive supramolecular interactions lead to the formation of an infinite 2D structure.