Synthesis, Structure and Dielectric Properties of a Novel 1D Chain Bismuth(III) Complex [(C6H6NO2)2•(BiCl5)•2H2O]n

Under hydrothermal conditions, isonicotinic acid reacted with BiCl3 to give 1D zigzag chain complex [(C6H6NO2)(2)center dot(BiCl5)center dot 2H(2)O](n) (1). Single-crystal X-ray determination shows that compound 1 crystal- lizes in the monoclinic system, space group C2/c with a = 13.115(3), b = 19.957(4), c = 7.9374(16) angstrom, beta = 97.45(3)degrees, Z = 4, V = 2060.0(8) angstrom(3), C12H16BiCl5N2O6, D-c = 2.162 g/cm(3), M-r = 670.50, lambda(MoKa) = 0.71073 angstrom, mu = 9.237 mm(-1), F(000) = 1272, R = 0.0208 and wR = 0.0503. Dielectric constant of compound 1 was measured at different conditions. Measurements on the dielectric properties of 1 showed that the 1D chain coordination polymer exhibited a dipolar chain relaxation process and a relatively high dielectric constant.