摘要

A new sandwich polyoxometalate Na(4)Zn(2)[Zn(2)(H(2)O)(10)(ZnCl)(6)(B-alpha- BiW(9)O(33))(2)] center dot 40.5H(2)O (1) has been obtained in aqueous solution and characterized by IR, UV, element analysis, TG and single-crystal X-ray analysis. Polyoxoanion 1 is composed of a Zn(6)(12+) hexagon sandwiched by two [BiW(9)O(33)](9-) units, which is firstly observed in tungstobismutate. The crystal data for compound 1: Triclinic, space group P-1, a = 15.426(3) angstrom, b = 15.467(3) angstrom, c = 15.526(3) angstrom, alpha = 74.24(3)degrees, beta = 64.37(3)degrees, gamma = 60.73(3)degrees, V = 2905.3(1) angstrom(3), Z = 1.