title: Ferrocene-o-benzosemiquinonato tin(IV) electron-transfer complexes.
abstract: The interaction of ferrocene with tin(IV) o-benzosemiquinonato complexes in acetonitrile results in a reversible electron transfer (ET) from ferrocene to the redox-active ligand with the formation of electron-transfer complexes [(3,6-Cat)SnBr3](-)[Cp2Fe](+) (1) and [(3,6-Cat)(3,6-SQ)SnCl2](-)[Cp2Fe](+) (2), where 3,6-Cat is the 3,6-di-tert-butyl-catecholate dianion and 3,6-SQ is the 3,6-di-tert-butyl-o-benzosemiquinonato radical anion. The ET process and the solvent effect in the system "ferrocene-o-benzosemiquinonato tin(IV) complexes" were investigated on the basis of a combination of spectroscopic and X-ray diffraction methods. The molecular structures of 1 and 2 were confirmed by X-ray analysis. Complex 2 demonstrates the ferromagnetic coupling in the linear chain alternating ···D(+•)A(-•)D(+•)A(-•)··· motif.
authors.affiliation: G. A. Razuvaev Institute of Organometallic Chemistry, Russian Academy of Sciences, 49 Tropinina str., 603950, Nizhniy Novgorod, GSP-445, Russia.
authors.forename: Ekaterina V
authors.initials: EV
authors.lastname: Ilyakina
authors.forename: Andrey I
authors.initials: AI
authors.lastname: Poddel'sky
authors.forename: Georgy K
authors.initials: GK
authors.lastname: Fukin
authors.forename: Artem S
authors.initials: AS
authors.lastname: Bogomyakov
authors.forename: Vladimir K
authors.initials: VK
authors.lastname: Cherkasov
authors.forename: Gleb A
authors.initials: GA
authors.lastname: Abakumov
mesh_terms: D001555:Benzene Derivatives / Q000737:chemistry*; D056831:Coordination Complexes / Q000737:chemistry*; D018360:Crystallography, X-Ray; D004583:Electrons; D005296:Ferrous Compounds / Q000737:chemistry*; D000075163:Metallocenes; D008958:Models, Molecular; D014001:Tin / Q000737:chemistry*
chemical_list: D001555:Benzene Derivatives; D056831:Coordination Complexes; D005296:Ferrous Compounds; D000075163:Metallocenes; D014001:Tin; C004998:ferrocene