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Research article - Peer-reviewed, 2015

Crystal structure of hexa­kis­(dmpu)-di-μ2-hydroxido-dialuminium tetraiodide dmpu tetra­solvate [dmpu is 1,3-di­methyl­tetra­hydro­pyrimidin-2(1H)-one]: a centrosymmetric dinuclear aluminium complex containing AlO5 polyhedra

Lundberg, Daniel; Lyczko, Krzysztof


The structure of the title compound, [Al2(OH)2(C6H12N2O)6]I4.4C6H12N2O (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.


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

Lundberg, Daniel
Swedish University of Agricultural Sciences, The Department of Chemistry and Biotechnology
Lyczko, Krzysztof
Institute of Nuclear Chemistry and Technology

UKÄ Subject classification

Inorganic Chemistry

Publication Identifiers


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