Synthesis and crystal structure of [{Cd(hmbdc)(H2O)3}•2H2O]n

A novel coordination polymer [{Cd(hmbdc)(H2O)(3)}center dot 2H(2)O](n) (hmbdc= 5-hydroxyisophthalic acid) has been synthesized and characterized by elemental analysis, IR spectra and single-crystal X-ray diffraction. The crystal belongs to monoclinic, space group P2(1)/c, with a 9.599(3), b = 18.699(5), c = 7.557(2) angstrom, beta = 108.198(4)degrees, V=1288.6(6) angstrom(3), Z = 4, M-r = 3 82.60, D-c 1.972 g/cm(3), F(000) = 760, mu = 1.740, the final R = 0.0555 and wR = 0.0995 for 1732 observed reflections with I > 2 sigma(I). The structural analysis shows that the intermolecular hydrogen bonds and pi-pi interactions result in a three-dimensional supramolecular framework.