title: Synthesis and electrochemistry of Co(III) and Co(I) complexes having C5Me5 auxiliary.
abstract: The synthesis and electrochemistry of half-sandwich type of Co(III) complexes [(C(5)Me(5))Co(bidentate)(CH(3)CN)](BF(4))(2) {bidentate=dppe (1,2-bis(diphenylphosphino)ethane), dppp (1,3-bis(diphenylphosphino)propane), bpy (2,2'-bipyridine), en (ethylenediamine)) are reported. Cyclic voltammograms of [(C(5)Me(5))Co(bidentate)(CH(3)CN)](BF(4))(2) in CH(3)CN s showed two redox couples assignable to Co(II)/Co(III) and Co(I)/Co(II). The Co(I) complex having C(5)Me(5) and dppe was also prepared. Two redox couples of this Co(I) complex, (C(5)Me(5))Co(dppe), in CH(3)CN coincided with those of [(C(5)Me(5))Co(dppe)(CH(3)CN)](BF(4))(2) in spite of the structural change around the metal center.
authors.affiliation: Research Center for Molecular-scale Nanoscience, Institute for Molecular Science, Myodaiji, Okazaki 444-8787, Japan. tnaga@ims.ac.jp
authors.forename: Takayuki
authors.initials: T
authors.lastname: Nagasawa
authors.forename: Toshi
authors.initials: T
authors.lastname: Nagata
mesh_terms: D003035:Cobalt / Q000737:chemistry*; D004563:Electrochemistry; D008956:Models, Chemical; D015394:Molecular Structure; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D010084:Oxidation-Reduction; D013329:Structure-Activity Relationship
chemical_list: D009942:Organometallic Compounds; D003035:Cobalt