| Summary: | In the asymmetric unit of title coordination polymer, {(C16H36N)[Zn3(C9H3O6)2(OH)]·0.25H2O}n, there are three independent Zn2+ cations, two benzene-1,3,5-tricarboxylate ligands and a μ3-bridging hydroxide group, together with a tetra-n-butylammonium counter-cation and a partially occupied water molecule of solvation (occupancy 0.25). Each Zn ion is coordinated by three carboxylate O atoms and one O atom from the bridging hydroxide ion, displaying a slightly distorted tetrahedral stereochemistry [overall Zn—O range = 1.875 (3)–1.987 (2) Å]. An intramolecular hydrogen bond involving the hydroxide H atom and a carboxylate O-atom acceptor is also present in the complex unit. The bridging benzene-1,3,5-tricarboxylate anions generate a three-dimensional framework structure.
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