title: Crystal structure of a dimeric β-diketiminate magnesium complex.
abstract: 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-κ2N,N')magnesium(II)] toluene sesquisolvate, [Mg2(C29H41N2)2I2]·1.5C7H8, crystallizes as two independent mol-ecules, each with 2/mcrystallographic site symmetry, located at Wyckoff sites 2cand 2d. 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 4iand 2a, 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.
authors.affiliation: Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada.
authors.forename: Connor S
authors.initials: CS
authors.lastname: MacNeil
authors.affiliation: Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada.
authors.forename: Kevin R D
authors.initials: KR
authors.lastname: Johnson
authors.affiliation: Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada.
authors.forename: Paul G
authors.initials: PG
authors.lastname: Hayes
authors.affiliation: Department of Chemistry and Biochemistry, University of Lethbridge, Lethbridge, AB, T1K 3M4, Canada.
authors.forename: René T
authors.initials: RT
authors.lastname: Boeré
keywords: dimeric magnesium complex; low oxidation; single-crystal X-ray study; β-diketiminates