cqvip:The title compound, {[Ag2(bipy)2(H2O)2]·pydc·2H2O}n (bipy=4,4'-bipyridine, pydc= pyridine-3,5-dicarboxylate), has been synthesized by the reaction of Ag2O with pydc and bipy in CH3OH solution. It crystallizes in the monoclinic system, space group C2/c with a=21.419(8), b=7.515(3), c=18.070(7), β=108.273(6)°, Mr=765.27, V=2761.9(17)3, Z=4, Dc=1.840 g/cm3, F(000)= 1528, μ=1.478 mm-1, the final R=0.0307 and wR=0.0681. The structure determined demonstrated that the Ag(I) is three-coordinated by two nitrogen atoms from bipy and one water molecule, forming a one-dimensional coordination polymer [Ag2(bipy)2(H2O)2]n2n+, which is further linked to generate a two-dimensional layer structure via Ag…Ag attractions.
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