Several Mn(Ⅲ)10-(hydroxylphenyl)-5,15-bis(pentafluoro-phenyl)corroles with the hydroxyl at ortho-,meta-and para-position of 10-phenyl group were used as the catalysts in the oxidative cleavage of plasmid DNA in the p...Several Mn(Ⅲ)10-(hydroxylphenyl)-5,15-bis(pentafluoro-phenyl)corroles with the hydroxyl at ortho-,meta-and para-position of 10-phenyl group were used as the catalysts in the oxidative cleavage of plasmid DNA in the presence of H2O2.The catalytic system was composed of 10 μL 0.5 mg/mL pC DNA 6 in TE buffer solution(pH=8.0,4.0×10-2 mol/L Tris,1.0×10-3 mol/L EDTA),10 μL 1.0×10-5 mol/L Mn(Ⅲ)corrole in DMSO and 10 μL 0.3% H2O2.After 8 h incubation at room temperature,significant oxidative DNA damage could be observed with the ortho-hydroxyl Mn(Ⅲ)corrole showing a better activity as detected by agarose-gel electrophoresis.Plasmid DNA was completely damaged after 12 h incubation.These observations show Mn(Ⅲ)corrole can be used as an artificial model of nuclease.展开更多
Department of Chemistry&Biology,Hechi Teacher’s College,Yizhou546300)abstract:The new complex formulated[Co（DPC）abstract: 2 ]-Co（H 2 O）abstract: 5 ]·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract...Department of Chemistry&Biology,Hechi Teacher’s College,Yizhou546300)abstract:The new complex formulated[Co（DPC）abstract: 2 ]-Co（H 2 O）abstract: 5 ]·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of[Co（DPC）abstract: 2 ]possess an approximate D 2d symmetry,while the part of[OCo （2）OH 2 5 ]has an approximate C2symmetry.展开更多
文摘Several Mn(Ⅲ)10-(hydroxylphenyl)-5,15-bis(pentafluoro-phenyl)corroles with the hydroxyl at ortho-,meta-and para-position of 10-phenyl group were used as the catalysts in the oxidative cleavage of plasmid DNA in the presence of H2O2.The catalytic system was composed of 10 μL 0.5 mg/mL pC DNA 6 in TE buffer solution(pH=8.0,4.0×10-2 mol/L Tris,1.0×10-3 mol/L EDTA),10 μL 1.0×10-5 mol/L Mn(Ⅲ)corrole in DMSO and 10 μL 0.3% H2O2.After 8 h incubation at room temperature,significant oxidative DNA damage could be observed with the ortho-hydroxyl Mn(Ⅲ)corrole showing a better activity as detected by agarose-gel electrophoresis.Plasmid DNA was completely damaged after 12 h incubation.These observations show Mn(Ⅲ)corrole can be used as an artificial model of nuclease.
文摘Department of Chemistry&Biology,Hechi Teacher’s College,Yizhou546300)abstract:The new complex formulated[Co（DPC）abstract: 2 ]-Co（H 2 O）abstract: 5 ]·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of·2H 2 O（HDPC - is pyridine-2,6-dicarboxylate）abstract:has been synthesized and the crystal structu re was determined by X-ray diffraction.The crystal structure of the complex bel ongs to monoclinic system with space group P2 1 /c,a=0.83850（10）abstract:nm,b=2.7386（4）abstract:nm,c=0.9610（2）abstract:nm,β =98.280（10）abstract:°,V=2.1838（6）abstract:nm 3 ,Z=4,D c =1.746g·cm -3 ,μ =1.597mm -1 .In the crystal the two Co 2+ are in distort-ed octahedrons.The part of[Co（DPC）abstract: 2 ]possess an approximate D 2d symmetry,while the part of[OCo （2）OH 2 5 ]has an approximate C2symmetry.
