Hydrothermal synthesis and crystal structure of a sulfur-bridged binuclear copper(II) coordination polymer generated by a spontaneous reduction

A simultaneous reduction of SO4 22 to S22 by 2,5-pyridinedicarboxylate under hydrothermal conditions produced a new binuclear copper(II) coordination polymer [CuS(4,40-bipy)]n (4,40-bipy ¼ 4,40-bipyridine) (1). Single crystal X-ray analysis revealed that compound 1 consisted of sulfur-bridged binuclear copper(II) units with Cu–Cu bonding which were combined with 4,40-bipy to generate a threedimensional network constructed from mutual interpenetration of two-dimensional (6,3) nets. Crystal data for 1: C10H8CuN2S, tetragonal I41=acd; a ¼ 14:0686ð5Þ A ° , b ¼ 14:0686ð5Þ A ° , c ¼ 38:759ð2Þ A ° , Z ¼ 32: Other characterizations by elemental analysis, IR, EPR and TGA analysis were also described in this paper. q 2004 Elsevier B.V. All rights reserved