摘要

A lead(II) coordination polymer, {[Pb-2(butca)(H2O)(2)](H2O)}(n) (1), has been synthesized by the hydrothermal reaction of Pb(OH)(2) and 1, 2, 3, 4-butanetetracarboxylic acid (H(4)butca) at 160 C. Single-crystal X-ray analyses reveal that it crystallizes in monoclinic, space group P2(1)/c with a = 7.616(5), b = 7.584(4), c = 12.314(7) angstrom, beta = 105.595(12)degrees, V = 685.0(7) angstrom(3), Z = 4, C8H14O12Pb2, M-r = 716.57, D-c = 3.474 g/cm(3), mu = 24.610 mm(-1), F(000) = 644, the final R = 0.0381 and wR = 0.1176 for 1465 observed reflections with I > 2 sigma(I). The complex presents a 2D-layered structure featuring two different types of rings, and has a (4,(3)(6)) topology based on Pb and butca(4-) nodes. In solid state, complex 1 shows photoluminescence with the maximum emission intensity at 468 urn under 286 nm excitation.