The redox chemistry between divalent lanthanide complexes bearing bulky amidinate ligands has been studied with 3d transition metal carbonyl complexes (iron and cobalt). The reaction of [(DippForm)Sm(thf)] (DippForm = N,N'-bis(2,6-diisopropylphenyl)formamidinate) with [Co(CO)] resulted in the formation of a tetranuclear Sm-Co complex, [{(DippForm)Sm(thf)}{(μ-CO)Co(CO)}]. The product of the reaction of [(DippForm)Yb(thf)] and [Co(CO)] gives the dinuclear Yb-Co complex [{(DippForm)Yb(thf)}{(μ-CO)Co(CO)}] in toluene.
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March 2015
Some transition metal complexes of phenylalanine of general formula [M(C9H10NO2)2]; where M=Mn(II), Co(II), Ni(II), Cu(II) and Zn(II) are prepared in aqueous medium and characterized by spectroscopic, thermo-gravimetric (TG) and magnetic susceptibility analysis. Density functional theory (DFT) has been employed calculating the equilibrium geometries and vibrational frequencies of those complexes at B3LYP level of theory using 6-31G(d) and SDD basis sets. In addition, frontier molecular orbital and time-dependent density functional theory (TD-DFT) calculations are performed with CAM-B3LYP/6-31+G(d,p) and B3LYP/SDD level of theories.
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