C_(60)Co(Pph_3)_2的合成和表征

Synthesis and Characterization of Complex C_(60)Co(Pph_3)_2

The fullerene complexe C 60 Co (Pph 3 ) 2 has been prepared by the reaction of C 60 with CoCl 2 (Pph 3 ) 2 under a nitrogen atmosphere and refluxing,and characterized by elemental analyses,FT-IR,XPS,NMR,which appove that C 60 coordinates to Co (Pph 3 ) 2 group inσ-πpattern and the electron is super con jugate over whole molecule.The result of redox property study sh ow that the reduction potentiel of C 60 Co (Pph 3 ) 2 is more negative than that of C 60 ,the reason may be theπelectron dentensity of C 60 in C 60 Co (Pph 3 ) 2 increases,which lead to it’s electr on affinity decreasing.The thermosta bility experiment indicates that th e oxidation decomposition temperature of C 60 Co (Pph 3 ) 2 is lower than that of pure C 60 .

The fullerene complexe C60Co (Pph(3))(2) has been prepared by the reaction of C-60 with CoCl2 (Pph(3))(2) under a nitrogen atmosphere and refluxing, and characterized by elemental analyses, FT-IR, XPS, NMR, which appove that C-60 coordinates to Co(Pph(3))(2) group in sigma-pi pattern and the electron is super conjugate over whole molecule. The result of redox property study show that the reduction potentiel of C60Co(Pph(3))(2) is more negative than that of C-60, the reason may be the pi electron dentensity of C-60 in C60Co(Pph(3))(2) increases, which lead to it's electron affinity decreasing. The thermostability experiment indicates that the oxidation decomposition temperature of C60Co(Pph(3))(2) is lower than that of pure C-60.