Synthesis and Crystal Structure of a 1-D Chain Zinc(Ⅱ) Coordinated Polymer with N-p-Tolysulfonyl-glu

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A novel coordination polymer {[Zn(ts-gln)(bipy)]·3H2O}n (ts-glnH2 = N-p-tolysulfonyl-glutamine, bipy = 2,2-bipyridine) has been prepared and structuraily characterized by X-ray diffraction method. It crystallizes in orthorhombic, space group P212121 with a = 8.2622(5), b = 16.6244(10), c = 18.2807(10)(A), V = 2510.9(3)(A)3, C22H28N4O8SZn, Mr = 573.91, Z = 4, Dc =1.518 g/cm3, μ(MoKa) = 1.115 mm-1, F(000) = 1192, the final R = 0.0262 and wR = 0.0662 for 5691 independent reflections with Rint = 0.0240. The zinc(Ⅱ) atom is coordinated by N(3) and N(4)atoms of a bipy molecule, two carboxylate O(1) and O(2A) and amino N(1 ) atoms of ts-gln ligands,resulting in a square-pyramidal geometry. The title complex consists of an infinite zigzag chain of zinc(Ⅱ) ions linked by the carboxylate of N-p-tolysulfonyl-glutamine.
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