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Preparation Of Organometallic Cobalt(Iii) Complexes Containing Bidentate Chiral Amine Ligands As Potential Transfer Hydrogenation Catalysts, Luccas C. Do Carmo
Preparation Of Organometallic Cobalt(Iii) Complexes Containing Bidentate Chiral Amine Ligands As Potential Transfer Hydrogenation Catalysts, Luccas C. Do Carmo
Honors Theses
Mixed coordination sphere cobalt(III) complexes containing a chiral bidentate amine ligand and an organic carbocyclic ligand have been prepared and characterized. The integration of this mixed ligand environment involving an organometallic and Werner-type ligand along with the earth abundant metal in a high oxidation state has the potential for interesting reactivity. Complexes of the type [Co(CpR)(X-DPEN)(I)](I), where CpR = cyclopentadienyl (Cp, R = H) or pentamethylcyclopentadienyl (Cp*, R = Me) and X = meso-1,2-, 1R,2R-, and 1S,2S-, have been prepared by ligand substitution from [Co(CpR)(I)2(CO)] with 1,2-diphenyletheylenediamine (DPEN). The outer sphere iodide is readily exchangeable with sodium tetrakis[3,5-bis(trifluoromethyl)phenyl]borate (NaBArF) or …