Abstract

The structure of the title compound, [Al₂(OH)₂(C₆H₁₂N₂O)₆]I_4.4C₆H₁₂N₂O (systematic name: di-2-hydroxido-bis{tris[1,3-dimethyltetrahydropyrimidin- 2(1H)-one-O]aluminium} tetraiodide 1,3-dimethyltetrahydropyrimidin-2(1H)-one tetrasolvate), is composed of two Al(C₆H₁₂N₂O)₃ moieties linked into a centrosymmetric dinuclear unit by a pair of bridging hydroxide ions. The aluminium cations show a distorted trigonal bipyramidal AlO₅ coordination environment formed only by monodentate ligands. The Al-O bond lengths are in the range 1.789(2)-1.859(2) Å (mean bond length = 1.818 Å ). The noncoordinating iodide anions compensate the charge of the complex cation. The remaining solvent molecules and the iodide counter-anions interact with the complex cation by weak non-classical C-H...I and C-H...O hydrogen bonds.

Keywords

crystal structure; group 13 metals; five-coordination; dmpu; space-demanding solvent

Published in

Acta Crystallographica Section E: Crystallographic Communications
2015, volume: 71, number: 8, pages: 895-898
Publisher: International Union of Crystallography

Authors' information