Abstract
In the title salt, (C8H20N)[ReBr(C7H5O2)(CO)3], the ReI atom is octahedrally surrounded by three facially orientated carbonyl ligands, one bidendate tropolonate ligand and a bromide ligand. The small O—Re—O bite angle of 74.88 (12)° leads to a distortion of the octahedral coordination sphere. The bromide ligand and the axial carbonyl ligand are substitutionally disordered over two positions in a 0.922 (3):0.078 (3) ratio. An array of C—H⋯O and C—H⋯Br hydrogen-bonding interactions between the cations and neighbouring rhenate anions stabilizes the crystal packing.
Highlights
In the title salt, (C8H20N)[ReBr(C7H5O2)(CO)3], the ReI atom is octahedrally surrounded by three facially orientated carbonyl ligands, one bidendate tropolonate ligand and a bromide ligand
The bromide ligand and the axial carbonyl ligand are substitutionally disordered over two positions in a
A range of related rhenium bidentate complexes have been characterized by Schutte & Visser (2008); Alberto et al (1992, 1996, 1998); Abram et al (1996); Findeisen &
Summary
Key indicators: single-crystal X-ray study; T = 100 K; mean (C–C) = 0.007 Å; disorder in main residue; R factor = 0.034; wR factor = 0.086; data-to-parameter ratio = 20.6. In the title salt, (C8H20N)[ReBr(C7H5O2)(CO)3], the ReI atom is octahedrally surrounded by three facially orientated carbonyl ligands, one bidendate tropolonate ligand and a bromide ligand. The small O—Re—O bite angle of 74.88 (12). Leads to a distortion of the octahedral coordination sphere. H Br hydrogen-bonding interactions between the cations and neighbouring rhenate anions stabilizes the crystal packing
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