Acta Cryst. (2007). E63, m1555-m1556  [ doi:10.1107/S1600536807020818 ]

Poly[triaquabis(-benzene-1,2,4-tricarboxylato)zinc(II)dipotassium(I)]

Y.-H. Liu and H.-T. Chung

Abstract: In the crystal structure of the title metal-organic coordination polymer, [K₂Zn(C₉H₄O₆)₂(H₂O)₃]_n, the Zn^II ion exists in a tetrahedral coordination environment formed by four monodentate carboxylate O atoms. There are two crystallographically distinct K^I ions. Each is coordinated by one terminal water molecule and four carboxylate O atoms; in addition, these two K^I ions share one bridging water molecule. Thus, both K^I ions present a distorted octahedral coordination environment. Two crystallographically independent benzene-1,2,4-tricarboxylate dianions act as three-connected pillars to give a heterometallic three-dimensional layer-pillared network structure.

Online 3 May 2007

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