Kinetics of the coordination reaction of tetrakis(Ncarbomethoxymethyl3pyridyl) porphyrin(abbr. H2TβNACMSPyP) with Cu?ion has been studied in ophthalic acid buffer system in an ionic strength of 0.5mol...Kinetics of the coordination reaction of tetrakis(Ncarbomethoxymethyl3pyridyl) porphyrin(abbr. H2TβNACMSPyP) with Cu?ion has been studied in ophthalic acid buffer system in an ionic strength of 0.5mol·dm-3(KCI) at 35.0±0.1℃.The reaction is catalyzed by ophthalic ion. The effect of concentration of the catalyst, metal ion and pH value of solution was discussed. The kinetics equation of the reaction were obtained as d/dt=16.15{(1.0+3.35×1052)/1.0+1.57×10-42}T. The mechanism of the reaction was proposed. The deformation of the ring of porphyrins is the general condition in the reaction. Keyowrds:展开更多
：A series of new rare earth complexes LnL(NO3)2· 2H2O(Ln=La,Pr,Nd,Sm,Eu,Gd,Dy,Yb;L=1,2-diaza-3,4∶ 9,10-dibenzo-5,8-dioxyacyclopentadecane-N-acetic ion) were prepared. The complexes were characterized by element...：A series of new rare earth complexes LnL(NO3)2· 2H2O(Ln=La,Pr,Nd,Sm,Eu,Gd,Dy,Yb;L=1,2-diaza-3,4∶ 9,10-dibenzo-5,8-dioxyacyclopentadecane-N-acetic ion) were prepared. The complexes were characterized by elemental analysis, ICP method, IR spectra, 1H NMR and Molar conductance. It was found that the ether oxygen, carboxy oxygen and nitrogen atoms of the ligand are coordinated to the metal ion, as well as a free nitrate and coordianted nitrate ion in the complex.展开更多
A new nickel coordination compound [Ni(L2-)(2,2′-bipy)(H2O)]·2H2O (H2L=phenyliminodiacetic acid) was obtained by self-assembly of phenyliminodiacetic acid, 2,2′-bipy, and NiCl2·6H2O in the mixed solvent of...A new nickel coordination compound [Ni(L2-)(2,2′-bipy)(H2O)]·2H2O (H2L=phenyliminodiacetic acid) was obtained by self-assembly of phenyliminodiacetic acid, 2,2′-bipy, and NiCl2·6H2O in the mixed solvent of water and ethanol (V∶V=1∶1). The complex was characterized by elemental analysis, IR spectra, and X-ray crystallography analysis. The crystal is monoclinic, space group P21 / c with a=0.867 4(2) nm, b=0.907 3(1) nm, c=2.643 5(5) nm, β=91.01(1)°, V=2.080 2(4) nm3, Z=4, F(000)=992, Dc=1.520 Mg·m-3, R1=0.027 0 and wR2=0.067 5. In the complex, nickel atom is coordinated with a distorted octahedral geometry and extensive hydrogen bonds link the complexes into a 2D network structure. CCDC: 244926.展开更多
文摘Kinetics of the coordination reaction of tetrakis(Ncarbomethoxymethyl3pyridyl) porphyrin(abbr. H2TβNACMSPyP) with Cu?ion has been studied in ophthalic acid buffer system in an ionic strength of 0.5mol·dm-3(KCI) at 35.0±0.1℃.The reaction is catalyzed by ophthalic ion. The effect of concentration of the catalyst, metal ion and pH value of solution was discussed. The kinetics equation of the reaction were obtained as d/dt=16.15{(1.0+3.35×1052)/1.0+1.57×10-42}T. The mechanism of the reaction was proposed. The deformation of the ring of porphyrins is the general condition in the reaction. Keyowrds:
文摘：A series of new rare earth complexes LnL(NO3)2· 2H2O(Ln=La,Pr,Nd,Sm,Eu,Gd,Dy,Yb;L=1,2-diaza-3,4∶ 9,10-dibenzo-5,8-dioxyacyclopentadecane-N-acetic ion) were prepared. The complexes were characterized by elemental analysis, ICP method, IR spectra, 1H NMR and Molar conductance. It was found that the ether oxygen, carboxy oxygen and nitrogen atoms of the ligand are coordinated to the metal ion, as well as a free nitrate and coordianted nitrate ion in the complex.
文摘A new nickel coordination compound [Ni(L2-)(2,2′-bipy)(H2O)]·2H2O (H2L=phenyliminodiacetic acid) was obtained by self-assembly of phenyliminodiacetic acid, 2,2′-bipy, and NiCl2·6H2O in the mixed solvent of water and ethanol (V∶V=1∶1). The complex was characterized by elemental analysis, IR spectra, and X-ray crystallography analysis. The crystal is monoclinic, space group P21 / c with a=0.867 4(2) nm, b=0.907 3(1) nm, c=2.643 5(5) nm, β=91.01(1)°, V=2.080 2(4) nm3, Z=4, F(000)=992, Dc=1.520 Mg·m-3, R1=0.027 0 and wR2=0.067 5. In the complex, nickel atom is coordinated with a distorted octahedral geometry and extensive hydrogen bonds link the complexes into a 2D network structure. CCDC: 244926.
