A cyclic supramolecular (H2O)(4) cluster in an unusual Fe-3 complex that aggregates to {Fe-3}(n) with a zig-zag chainlike structure

摘要

An aqueous solution containing ferric chloride, acetic acid and 2-hydroxypyridine results in the solid-state isolation of an unusual mixed-ligand trinuclear iron(III) complex [Fe-3(mu(3)-O)-(mu(2)-CH3COO)(6)(C5H5NO)(2)(H2O)]ClO4.4H(2)O, 1, where the iron-coordinated water ligand forms a hydrogen-bonded water tetramer with three other solvent water molecules; the Fe-3 clusters aggregate to {Fe-3}(n) via N-H...O type hydrogen bonds, forming a zig-zag chainlike structure. [References: 29]