Synthesis, properties and crystal structure of a novel coordinated polymer:: {(H2en)(H3O)[(BiPb(C2O4)4(H2O)2)]•2(H2O)}n

A novel oxalate compound {(H(2)en)(H3O)[BiPb(C2O4)(4)(H2O)(2)]center dot 2(H2O)}(n) 1 (en = ethylenediamine) containing lead and bismuth has been synthesized by hydrothermal methods, and structurally characterized by X-ray single-crystal diffraction. It crystallizes in monoclinic, space group P2(1)/c with a = 11.6160(1), b = 12.7426(1), c = 15.5683(5) angstrom, beta = 108.442(4)degrees, BiPbC10N2O21H21, M-r = 921.46, V = 2186.0(4) angstrom(3), Z = 4, D-c = 2.800 g/cm(3), F(000) = 1712 and mu(MoK alpha) = 15.837 mm(-1). The final R = 0.0502 and wR = 0.1261 for 3391 observed reflections with I > 2 sigma(I). The title compound consists of 2-D polyanions and protonized organic amine cations, and they are combined to each other by static attractive force and H-bonds to form the so-called organic-inorganic hybrid material.