Crystal structure of a dimeric β-diketiminate magnesium complex.

Acta Crystallogr E Crystallogr Commun

Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada.

Published: December 2016

The solid-state structure of a dimeric β-diketiminate magnesium(II) complex is discussed. The compound, di-μ-iodido-bis-[(-{4-amino-1,5-bis-[2,6-bis-(propan-2-yl)phen-yl]pent-3-en-2-yl-idene}aza-nido-κ,')magnesium(II)] toluene sesquisolvate, [Mg(CHN)I]·1.5CH, crystallizes as two independent mol-ecules, each with 2/ crystallographic site symmetry, located at Wyckoff sites 2 and 2. These have symmetry-equivalent magnesium atoms bridged by μ-iodide ligands with very similar Mg-I distances. The two Mg atoms are located slightly below (∼0.5 Å) the least-squares plane defined by N-C-C-N atoms in the ligand scaffold, and are approximately tetra-hedrally coordinated. One and one-half toluene solvent mol-ecules are disordered with respect to mirror-site symmetry at Wyckoff sites 4 and 2, respectively. In the former case, two toluene mol-ecules inter-act in an off-center parallel stacking arrangement; the shortest C to C' (π-π) distance of 3.72 (1) Å was measured for this inter-action.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5137601PMC
http://dx.doi.org/10.1107/S2056989016017394DOI Listing

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