The title compound has been prepared and characterized by elemental analyses, infrared and raman spectra, and thermal analyses. The crystal structure of Bis [di(N′-ethyl-N-piperazinly-carbodithioato-S,S′) Zinc(Ⅱ)] ...The title compound has been prepared and characterized by elemental analyses, infrared and raman spectra, and thermal analyses. The crystal structure of Bis [di(N′-ethyl-N-piperazinly-carbodithioato-S,S′) Zinc(Ⅱ)] complexes, [Zn2(S2CNC4H8NC2H5)4], was determined by X-ray diffraction methods. The compound crystallizes in Monoclinic system, space group P21 / c, with lattice and some related parameters a=0.886(18), b=1.955(4), c=1.196(2) nm, β=106.03(3)°, V=1.991 3(7) nm3, Z=2, Mr=888.12, Dc=1.481 g·cm-3, F(000)=928, R=0.054 3 and wR=0.227 6. In crystal structure of the binuclear zinc complexes is built up of centro-symmetric dimeric entities. The coordination sphere of zinc(Ⅱ) ions is best described as a distorted tetragonal-pyramid. The IR spectral data are in agreement with the structural data. The thermal analytical data indicate that it decomposed completely at the temperature of 652.5 °C, leaving Zn. CCDC: 286177.展开更多
The title compound, [CoCl2(C7H5N2CH2Ph)2], has been synthesized and structurally characterized by elemental analysis, IR, UV-Vis spectra, TG-DSC and X-ray crystallography. The coordination geometry of each Co atom is ...The title compound, [CoCl2(C7H5N2CH2Ph)2], has been synthesized and structurally characterized by elemental analysis, IR, UV-Vis spectra, TG-DSC and X-ray crystallography. The coordination geometry of each Co atom is formed, by two N atoms from two benzyl-benzimidazole ligands and by two Cl anions, is of a tetrahedron. The data of EA, IR and UV-vis spectra are in good agreement with the result of crystal structure determination. The thermal gravimetry (TG) data indicate that there are four decomposition steps with five endothermic peaks. The final product of the thermal decomposition is Co. The electrochemical properties of the complex was also studied in H2O/DMF solvent by cyclic voltammetry(CV). CCDC:211442.展开更多
The complexCo 2 Cl 2 (EGTB)·(ClO 4 ) 2 ·5H 2 O was synthesized in methanol-aqueous solution and its crystal structure was determined by X-ray di ffraction method.The crystal belon gs to monoclinic with space...The complexCo 2 Cl 2 (EGTB)·(ClO 4 ) 2 ·5H 2 O was synthesized in methanol-aqueous solution and its crystal structure was determined by X-ray di ffraction method.The crystal belon gs to monoclinic with space group of P2 1 /c.The cell parameters are a=1.42231(2)nm,b=2.53181(3)nm,c=1.43392(2)nm,β=102.0518(5)°,Z =4,F(000)=2360,D c =1.508g·cm -3 ,The final R=0.0788,w R 2 =0.232,The catalytic rate constant of the dismutation of superoxide radic als has been obtained by means of photo reduction of nitroblue tetrazoliu m(NBT),and it is 1.875×10 6 mol -1 ·L·s -1 .展开更多
文摘The title compound has been prepared and characterized by elemental analyses, infrared and raman spectra, and thermal analyses. The crystal structure of Bis [di(N′-ethyl-N-piperazinly-carbodithioato-S,S′) Zinc(Ⅱ)] complexes, [Zn2(S2CNC4H8NC2H5)4], was determined by X-ray diffraction methods. The compound crystallizes in Monoclinic system, space group P21 / c, with lattice and some related parameters a=0.886(18), b=1.955(4), c=1.196(2) nm, β=106.03(3)°, V=1.991 3(7) nm3, Z=2, Mr=888.12, Dc=1.481 g·cm-3, F(000)=928, R=0.054 3 and wR=0.227 6. In crystal structure of the binuclear zinc complexes is built up of centro-symmetric dimeric entities. The coordination sphere of zinc(Ⅱ) ions is best described as a distorted tetragonal-pyramid. The IR spectral data are in agreement with the structural data. The thermal analytical data indicate that it decomposed completely at the temperature of 652.5 °C, leaving Zn. CCDC: 286177.
文摘The title compound, [CoCl2(C7H5N2CH2Ph)2], has been synthesized and structurally characterized by elemental analysis, IR, UV-Vis spectra, TG-DSC and X-ray crystallography. The coordination geometry of each Co atom is formed, by two N atoms from two benzyl-benzimidazole ligands and by two Cl anions, is of a tetrahedron. The data of EA, IR and UV-vis spectra are in good agreement with the result of crystal structure determination. The thermal gravimetry (TG) data indicate that there are four decomposition steps with five endothermic peaks. The final product of the thermal decomposition is Co. The electrochemical properties of the complex was also studied in H2O/DMF solvent by cyclic voltammetry(CV). CCDC:211442.
文摘The complexCo 2 Cl 2 (EGTB)·(ClO 4 ) 2 ·5H 2 O was synthesized in methanol-aqueous solution and its crystal structure was determined by X-ray di ffraction method.The crystal belon gs to monoclinic with space group of P2 1 /c.The cell parameters are a=1.42231(2)nm,b=2.53181(3)nm,c=1.43392(2)nm,β=102.0518(5)°,Z =4,F(000)=2360,D c =1.508g·cm -3 ,The final R=0.0788,w R 2 =0.232,The catalytic rate constant of the dismutation of superoxide radic als has been obtained by means of photo reduction of nitroblue tetrazoliu m(NBT),and it is 1.875×10 6 mol -1 ·L·s -1 .
