A copper(Ⅱ) complex [CuL(H2O)(Sal)]·0.5H2O was obtained by the reaction of copper(Ⅱ) salicylate with 3-methyl-4-(4-methylphenyl)-5-(2-pyridyl)-1,2,4-triazole(L) in ethanol-water solution at room temperature.The...A copper(Ⅱ) complex [CuL(H2O)(Sal)]·0.5H2O was obtained by the reaction of copper(Ⅱ) salicylate with 3-methyl-4-(4-methylphenyl)-5-(2-pyridyl)-1,2,4-triazole(L) in ethanol-water solution at room temperature.The crystal belongs to triclinic system with space group P1,and a=0.913 6(4) nm,b=1.122 2(5) nm,c=1.263 3(7) nm,α= 67.10(2)°,β=76.31(3)°,γ=68.17(2)°,V= 1.101(1) nm3,Z=2.The final refinement gave R1=0.039 8 and wR2=0.106 0 for 3 453 reflections with I>2σ(I).This complex is a good purple fluorescent material in solid state at room temperature.展开更多
A dinuclear Cu(Ⅱ) complex [Cu2(MMBPT)2Cl4(H2O)2.5] (I) [MMBPT=3-Methyl-4-(4-Methylphenyl)-5-(2-pyridyl)-1,2,4-triazole] was synthesized by reaction of MMBPT with CuCl2.2H2O and its structure was determined by X-ray c...A dinuclear Cu(Ⅱ) complex [Cu2(MMBPT)2Cl4(H2O)2.5] (I) [MMBPT=3-Methyl-4-(4-Methylphenyl)-5-(2-pyridyl)-1,2,4-triazole] was synthesized by reaction of MMBPT with CuCl2.2H2O and its structure was determined by X-ray crystal structure analysis. The structure indicates that the complex crystallizes in monoclinic,space group P21/c with a=1.273 4(3) nm,b=1.237 5(3) nm,c=2.403 2(5) nm,β=90.51(3)°. V=3.786 6(13) nm3,Z=2,Dc=1.429 Mg.m-3,μ=1.445 mm-1,F(000)=1 660,and final R1=0.055 5,wR2=0.129 7. The crystal structure shows that the dinuclear Cu2N6 unit is almost planar in which each Cu(Ⅱ)ion was five-coordinated by one nitrogen atoms from MMBPT and two chlorine in the basal positions and two nitrogen atoms from two MMBPTs respectively in the axial one,to form a distorted trigonal bipyramidal geometry. Magnetic measurements reveal a relatively strong antiferromagentic interaction in the complex. CCDC:720011.展开更多
A dinuclear Mn(Ⅱ) complex [Mn2L2(μ-Cl)2Cl2(H2O)2](1) was synthesized by reaction of ligand L with MnCl2.4H2O and its structure was determined by X-ray crystal structure analysis.The structure indicates that the comp...A dinuclear Mn(Ⅱ) complex [Mn2L2(μ-Cl)2Cl2(H2O)2](1) was synthesized by reaction of ligand L with MnCl2.4H2O and its structure was determined by X-ray crystal structure analysis.The structure indicates that the complex crystallizes in monoclinic,space group C2/c with a=2.018 0(15) nm,b=0.894 0(6) nm,c=1.932 1(14) nm,β=97.506(12)°.V=3 456(4) nm3,Z=4,Dc=1.515 Mg.m-3,μ=1.081 mm-1,F(000)=1 608,and final R1=0.043 8,wR2= 0.109 9.The result shows a Mn(Ⅱ) ion was six-coordinated by a bidentate 3-methyl-4-(p-methylphenyl)-5-(2-pyridyl)-1,2,4-triazole,one chlorine and one bridging chlorine atom in the basal positions and one chloride atom and one water molecule in the axial one,to form a distorted octahedral-pyramidal geometry.展开更多
全氟辛烷磺酸盐(PFOS)和全氟辛烷磺酸(PFOA)被使用50多年,污染已十分广泛,但它们的毒性机制仍不明确,尤其是基因毒性方面。本实验以三角涡虫为研究对象,采用单细胞凝胶电泳(single cell gel electrophoresis,SCGE,彗星实验)技术,探究PFO...全氟辛烷磺酸盐(PFOS)和全氟辛烷磺酸(PFOA)被使用50多年,污染已十分广泛,但它们的毒性机制仍不明确,尤其是基因毒性方面。本实验以三角涡虫为研究对象,采用单细胞凝胶电泳(single cell gel electrophoresis,SCGE,彗星实验)技术,探究PFOS和PFOA对细胞核DNA的损伤作用。结果显示PFOA能破坏核DNA,使其断裂,但PFOS不能破坏核DNA。另外,我们进一步提取纯化的大肠杆菌DNA与PFOS和PFOA共同孵育,以验证我们的实验结果,结果显示体外DNA实验与单细胞凝胶电泳检验结果一致。展开更多
文摘A copper(Ⅱ) complex [CuL(H2O)(Sal)]·0.5H2O was obtained by the reaction of copper(Ⅱ) salicylate with 3-methyl-4-(4-methylphenyl)-5-(2-pyridyl)-1,2,4-triazole(L) in ethanol-water solution at room temperature.The crystal belongs to triclinic system with space group P1,and a=0.913 6(4) nm,b=1.122 2(5) nm,c=1.263 3(7) nm,α= 67.10(2)°,β=76.31(3)°,γ=68.17(2)°,V= 1.101(1) nm3,Z=2.The final refinement gave R1=0.039 8 and wR2=0.106 0 for 3 453 reflections with I>2σ(I).This complex is a good purple fluorescent material in solid state at room temperature.
文摘A dinuclear Cu(Ⅱ) complex [Cu2(MMBPT)2Cl4(H2O)2.5] (I) [MMBPT=3-Methyl-4-(4-Methylphenyl)-5-(2-pyridyl)-1,2,4-triazole] was synthesized by reaction of MMBPT with CuCl2.2H2O and its structure was determined by X-ray crystal structure analysis. The structure indicates that the complex crystallizes in monoclinic,space group P21/c with a=1.273 4(3) nm,b=1.237 5(3) nm,c=2.403 2(5) nm,β=90.51(3)°. V=3.786 6(13) nm3,Z=2,Dc=1.429 Mg.m-3,μ=1.445 mm-1,F(000)=1 660,and final R1=0.055 5,wR2=0.129 7. The crystal structure shows that the dinuclear Cu2N6 unit is almost planar in which each Cu(Ⅱ)ion was five-coordinated by one nitrogen atoms from MMBPT and two chlorine in the basal positions and two nitrogen atoms from two MMBPTs respectively in the axial one,to form a distorted trigonal bipyramidal geometry. Magnetic measurements reveal a relatively strong antiferromagentic interaction in the complex. CCDC:720011.
文摘A dinuclear Mn(Ⅱ) complex [Mn2L2(μ-Cl)2Cl2(H2O)2](1) was synthesized by reaction of ligand L with MnCl2.4H2O and its structure was determined by X-ray crystal structure analysis.The structure indicates that the complex crystallizes in monoclinic,space group C2/c with a=2.018 0(15) nm,b=0.894 0(6) nm,c=1.932 1(14) nm,β=97.506(12)°.V=3 456(4) nm3,Z=4,Dc=1.515 Mg.m-3,μ=1.081 mm-1,F(000)=1 608,and final R1=0.043 8,wR2= 0.109 9.The result shows a Mn(Ⅱ) ion was six-coordinated by a bidentate 3-methyl-4-(p-methylphenyl)-5-(2-pyridyl)-1,2,4-triazole,one chlorine and one bridging chlorine atom in the basal positions and one chloride atom and one water molecule in the axial one,to form a distorted octahedral-pyramidal geometry.
文摘全氟辛烷磺酸盐(PFOS)和全氟辛烷磺酸(PFOA)被使用50多年,污染已十分广泛,但它们的毒性机制仍不明确,尤其是基因毒性方面。本实验以三角涡虫为研究对象,采用单细胞凝胶电泳(single cell gel electrophoresis,SCGE,彗星实验)技术,探究PFOS和PFOA对细胞核DNA的损伤作用。结果显示PFOA能破坏核DNA,使其断裂,但PFOS不能破坏核DNA。另外,我们进一步提取纯化的大肠杆菌DNA与PFOS和PFOA共同孵育,以验证我们的实验结果,结果显示体外DNA实验与单细胞凝胶电泳检验结果一致。
