Synthesis and Crystal Structure of a 1-D Coordination Polymer Pb(ANS)2(phen)n

摘要

A new one-dimensional coordination polymer, [Pb(phen)(ANS)2]n (ANS = 2-aminonaphthalene-1-sulfonate, phen = 1,10-phenanthroline), has been prepared by hydrothermal synthesis and structurally characterized by elemental analysis, IR and single-crystal X-ray diffraction. The results determined by XRD reveal that the complex crystallizes in monoclinic, space group P21/c with a = 16.8374(14), b = 16.9825(14), c = 9.9392 (8)(A), β = 95.9830(10)°, V = 2826.5(4) (A)3, Mr = 831.86, Dc = 1.955 g/cm3, μ(MoKα) = 6.173 mm-1, F(000) = 1624, Z = 4, the final R = 0.0272 and wR = 0.0694 for 4305 observed reflections (Ⅰ＞ 2σ(Ⅰ)). In the complex, the adjacent lead(Ⅱ) ions are bridged through the oxygen atoms of sulfonate groups in a syn-syn conformation, yielding an infinite zigzag chain. And the intermolecular N-H…O hydrogen bonds link the chains into two-dimensional layered networks, which are further assembled into a separate two-layer-film-like packing structure.