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| Thesis Name： |
Catalytic mechanism of complex Ni(IDB)2］［C6H4(OH |
| Usage： |
Catalytic mechanism of complex |
| Keyword： |
123 |
| Remarks： |
Catalytic mechanism of complex Ni(IDB)2］［C6H4(OH)COO］·ClO4·CH3CH2OH·H2Oin the hydrolysis of urea and its electrochemical property CHEN Yan-guo1,2,HE Zhi-ke2
(1.Department of Chemistry, Hubei Normal University, Huangshi 435002， China；
2.College of Chemistry and Molecular Sciences, Wuhan University，Wuhan430072,China)
Abstract：The synthesis and the crystal structure of ［Ni(H2O)6］(ClO4)2·2H2O and the electrochemical property of mononuclear nickel(Ⅱ) complex ［Ni(IDB)2］［C6H4(OH)COO］·ClO4·CH3CH2OH·H2O［IDB=N,N-bis(benzimidazol-2-ylmethyl) amine］ reported. The catalytic mechanism of the title complex in the hydrolysis of urea is discussed. The crystal structure of ［Ni(H2O)6］(ClO4)2·2H2O as been determined by single crystal X-ray diffraction. The crystal belongs to monoclinic system，space group P2(1)/C, chemical formula: Cl2H16O16Ni,Mr=401.74, with the crystal cell parameters: a=0.62383(12) nm,b=1.2464(3)nm, c=0.91845(18)nm, α=90°，β=106.93(3)°, γ=90°, V=0.6832(2) nm3, Z=2, F(000)=412,S＝1.079，DC=1.953g/cm3, μ=1.890mm-1.The final R［I＞2σ（I）］：R1=0.0423，wR2=0.1155；R（all data）：R1=0.0506，wR2=0.1180. The nickel(Ⅱ) atom in ［Ni(H2O)6］(ClO4)2·2H2O has symmetrical octahedron coordination geometry and is six coordinated by six oxygen atoms from H2O. Cyclic voltammetry experiment shows that the title complex in DMF under goes a quasi reversible one electron redox reaction at E1/2=0.884V.
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| Original file： |
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