Aerobically stable and substitutionally labile α-diimine rhenium dicarbonyl complexes.

ABSTRACT: New synthetic routes to aerobically stable and substitutionally labile α-diimine rhenium(i) dicarbonyl complexes are described. The molecules are prepared in high yield from the cis-cis-trans-[Re(CO)₂( ^t Bu₂bpy)Br₂]^- anion (2, where ^t Bu₂bpy is 4,4'-di-tert-butyl-2,2'-bipyridine), which can be isolated from the one electron reduction of the corresponding 17-electron complex (1). Compound 2 is stable in the solid state, but in solution it is oxidized by molecular oxygen back to 1. Replacement of a single bromide of 2 by σ-donor monodentate ligands (Ls) yields stable neutral 18-electron cis-cis-trans-[Re(CO)₂( ^t Bu₂

SUBMITTER: Schindler K 

PROVIDER: S-EPMC8694950 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature