Electronic Lability in a Dinuclear Cobalt–Bis(dioxolene) Complex. Issue 30 (8th October 2015)

• Record Type: Journal Article
• Authors: Madadi, Azadeh; Itazaki, Masumi; Gable, Robert W.; Moubaraki, Boujemaa; Murray, Keith S.; Boskovic, Colette
• Is Part Of: European journal of inorganic chemistry. Issue 30(2015)
• Page Start: 4991
• Page End: 4995
• Publication Date: 2015-10-08
• Subjects: Spin crossover -- Valence ­tautomerism -- Mixed‐valent compounds -- Redox‐active ligands -- Magnetic properties; Chemistry, Inorganic -- Periodicals; Organometallic chemistry -- Periodicals; Bioinorganic chemistry -- Periodicals; Solid state chemistry -- Periodicals; 546
• DOI: 10.1002/ejic.201500980
• Languages: English
• ISSNs: 1434-1948

Abstract

Abstract: Remarkable electronic lability is evident from a preliminary study of a dinuclear cobalt complex with a bis(dioxolene) bridging ligand and tetraazamacrocylic ancillary ligands. Structural, magnetic, spectroscopic, and electrochemical data indicate coinciding metal‐ and ligand‐based mixed‐valence involving cobalt(II)/cobalt(III) and catecholate/semiquinonate couples. A thermally stimulated spin‐crossover or valence‐tautomeric transition is also observed above 200 K. Abstract : A dinuclear cobalt complex with a bridging bis(dioxolene) ligand shows evidence for coinciding metal‐ and ligand‐based mixed‐valence, as well as a thermally stimulated spin‐crossover or valence‐tautomeric transition.