Abstract

A Zn(II) metal–organic framework with nano-sized channels from 4,4′-bipyridine (4,4′-bipy) and 4′-sulfo-biphenyl-4-carboxylate (sbpc2−) ligands, {[Zn(μ-4,4′-bipy)1.5(μ-sbpc)]·5H2O}n (1), has been synthesized by the hydrothermal method. Compound 1 was characterized by X-ray powder diffraction, IR spectroscopy, elemental analysis and single-crystal X-ray crystallography. The structural studies show the Zn atoms have a six-coordinate geometry with a distorted octahedral environment constructed of paddle-wheel [Zn2(OOC)4] building units with 4,4′-bipy and sbpc2− linkers stacked over each other to generate three-dimensional nano-sized channels occupied by guest H2O molecules.

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