A new dinuclear copper（II） complex [Cu2（L）2（phen）2]·5H2O （1） with bicycle[2.2.1 ]hept- 2-en-5, 6-dicarboxylic acid （H2L） and 1,10-phenanthroline （phen） as ligands has been synthesized in the mixed sol...A new dinuclear copper（II） complex [Cu2（L）2（phen）2]·5H2O （1） with bicycle[2.2.1 ]hept- 2-en-5, 6-dicarboxylic acid （H2L） and 1,10-phenanthroline （phen） as ligands has been synthesized in the mixed solvents of ethanol and water. It crystallizes in the monoclinic space group P21/c, with a = 17.925（4）, b = 19.908（4）, c = 11.235（2） A, β = 97.65（3）°, V= 3973.4（14） A3, Dc = 1.552 g/cm^3, Z = 8, F（000） = 1910, the final GOOF = 1.056, R= 0.0519 and wR= 0.1293. The crystal structure shows that the whole molecule consists of two independent dinuclear units, in which two copper ions are bridged by twoμ2-η1 ：η0-3-carboxylate groups of L^2- anions. The fluorescence and thermal stability properties of 1 were studied. The results show that 1 has an intense fluorescent emission at around 381 rim. The TG analysis shows that I is stable below 143 ℃.展开更多
A novel dinuclear copper（Ⅱ） complex [CuL（NO3）]2·2MeOH was obtained by the coordination reaction of Cu（NO3）2·3H2O with ligand HL （HL=N-（methyl-2-benzimidazol- methylidene）-2-hydroxyaniline）. The si...A novel dinuclear copper（Ⅱ） complex [CuL（NO3）]2·2MeOH was obtained by the coordination reaction of Cu（NO3）2·3H2O with ligand HL （HL=N-（methyl-2-benzimidazol- methylidene）-2-hydroxyaniline）. The single-crystal X-ray analysis has revealed that the complex crystallizes in triclinic, space group P with a=9.535（3）, b=10.009（3）, c=10.666（4） , α=104.303（4）, β=100.105（4）, γ=115.917（4）o, V=839.0（5） 3, C16H16CuN4O5, Mr=407.87, Z=2, Dc=1.614 g/cm3, F（000）=418, μ=1.338 mm-1, R=0.0543 and wR=0.0980. The basic dinuclear copper（Ⅱ） complex units [CuL（NO3）]2 are formed by NO3- as co-bridging ligands and L as NNO tridentate chelate coordinating to the copper ions. The ladder-like one-dimensional chain motifs are formed by O…H-O and O…H-N hydrogen bonds from methanol molecules connecting the dinuclear copper（Ⅱ） units.展开更多
Dinuclear Cu(Ⅱ)complexes(Cu,LCl4).2H2O and Cu2L'Cl4 are pre-pared and characterized by X-ray structure analysis.(Cu2I-Cl4).2H2O,C20 H40N6Cu2Cl4O2,Mr=665.54,monoclinic,6 for 188l observed reflections with I>3(I...Dinuclear Cu(Ⅱ)complexes(Cu,LCl4).2H2O and Cu2L'Cl4 are pre-pared and characterized by X-ray structure analysis.(Cu2I-Cl4).2H2O,C20 H40N6Cu2Cl4O2,Mr=665.54,monoclinic,6 for 188l observed reflections with I>3(I).Cu2L'Cl4,C20H36N6Cu2Cl4,M.=629.41,monoclinic,for 1330 observed reflections with I>3(I).In both complexes the stereo-chemistry about Cu(Ⅱ)is 5-coordinated with two secondary amine N atoms and twoCl-occupying sites at the base of a distorted square pyramid capped by the tertiaryamine N atom.The pair of Cl'attached to the two Cu(Ⅱ)are held in anti configuration.展开更多
The X-ray crystallographic structure was reported for a dinuclear copper（Ⅱ） complex with a tetraanionic ligand of p-tert-butylsulfonylcalix[4]arene [Cu2L（CH3OH）6]·4CH3OH （H4L=p-tert-butylsuffonylcalix[4]ar...The X-ray crystallographic structure was reported for a dinuclear copper（Ⅱ） complex with a tetraanionic ligand of p-tert-butylsulfonylcalix[4]arene [Cu2L（CH3OH）6]·4CH3OH （H4L=p-tert-butylsuffonylcalix[4]arene）. The complex belongs to triclinic system, P1^-- space group, with a = 1.2303（3） nm, b = 1.2377（3） nm, c = 1.3110（3） nm, a =66.862（4）°, β= 67.206（4）°, γ=61.711（3）°, Z= 1, V= 1.5659（7） nm^3, Dc= 1.371 g/cm^3, F（000） = 682,μ（Mo Kα） = 0.883 mm^-1, R1 =0.0325, wR2=0.0870. In this complex, the calix[4]arene acts as a bis-tridentate chelating ligand with the 1,2-alternate conformation.展开更多
The novel dinuclear copper(Ⅱ) complex with with N (2,4 dihydroxybenzalidene) o aminobenzoic acid ligand, [Cu(C14H9NO4)]2· 2H2O, has been synthesized and characterized by elemental analysis, IR, UV Vis and therma...The novel dinuclear copper(Ⅱ) complex with with N (2,4 dihydroxybenzalidene) o aminobenzoic acid ligand, [Cu(C14H9NO4)]2· 2H2O, has been synthesized and characterized by elemental analysis, IR, UV Vis and thermal analysis. Its crystal structure was determined by single crystal X ray diffraction techniques. The crystal belongs to monoclinic with space group P21/c. The cell parameters are: a=0.82510(11)nm, b=0.68870(9)nm, c=2.3007(3)nm, β =100.847(2)° , V=1.2840(3)nm3, Z=2, Dc=1.742Mg· m- 3, μ (MoKα )=1.723mm- 1, F(000)=684. The structure was refined to final R1=0.0267, wR2=0.0735. The complex molecule structure has dinuclear centrosymmetric dimeric structure in which a planar Cu2O2 core features. The ligand N (2,4 dihydroxybenzalidene) o aminobenzoic acid dianion is μ 2 tridentate, chelating one copper? ion via one nitrogen, one hydroxy oxygen atom and one carboxylate oxygen atom, and the hydroxy oxygen atom simultaneously coordinates to the other copper? ion of the dimer. In the structure the copper? ion rendered four coordination in a distorted square planar geometry structure. CCDC: 212695.展开更多
大环双核铜(Ⅱ)配合物由N,N′-二甲基-N,N′-二(3-甲酰基-5-氯水杨醛)乙二胺和1,3-丙二胺,与铜(Ⅱ)反应形成的,经过X-射线单晶衍射结果表明:a=0.87105(16)nm,b=0.95778(18)nm,c=1.8104(3)nm,β=100.761(18)°,V=1.4838(5)nm3,Z=2,Dc...大环双核铜(Ⅱ)配合物由N,N′-二甲基-N,N′-二(3-甲酰基-5-氯水杨醛)乙二胺和1,3-丙二胺,与铜(Ⅱ)反应形成的,经过X-射线单晶衍射结果表明:a=0.87105(16)nm,b=0.95778(18)nm,c=1.8104(3)nm,β=100.761(18)°,V=1.4838(5)nm3,Z=2,Dc=1.762Mg.m-3,μ=1.85 mm-1,F(000)=796,and final R1=0.061,wR2=0.126。晶体结构表明:两个铜离子位于双核大环中间,与大环的胺、亚胺以及酚羟基的氧进行配位。磁性结果表明配合物为反铁磁性。展开更多
A novel dinuclear copper(Ⅱ) complex, [Cu2(phen)(dipic)2(H2O)2]·2H2O (phen=1,10-phenanthroline, dipicH2=2,6-pyridinedicarboxylic acid), has been prepared and structurally characterized. The complex crystallizes i...A novel dinuclear copper(Ⅱ) complex, [Cu2(phen)(dipic)2(H2O)2]·2H2O (phen=1,10-phenanthroline, dipicH2=2,6-pyridinedicarboxylic acid), has been prepared and structurally characterized. The complex crystallizes in the triclinic system, space group P1 with cell parameters a=0.846 0(17) nm, b=1.289 5(3) nm, c=1.452 7(3) nm, α=77.42(3)°, β=79.11(3)°, γ=87.08(3)°, and V=1.518 8(6) nm3. The dinuclear complex shows potential DNA cleavage activity at micromolar concentration in the presence of H2O2 and exhibits higher nuclease efficiency than mononuclear complex [Cu(dipic)(H2dipic)]·H2O. Without external reductants, the added H2O2 may contribute to the generation of hydroxyl radicals that result in DNA strand scission.CCDC:291786.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
基金Supported by the Construct Program of the Key Discipline in Hunan Province and Key Project of Production Plan of Hengyang City(2013)
文摘A new dinuclear copper（II） complex [Cu2（L）2（phen）2]·5H2O （1） with bicycle[2.2.1 ]hept- 2-en-5, 6-dicarboxylic acid （H2L） and 1,10-phenanthroline （phen） as ligands has been synthesized in the mixed solvents of ethanol and water. It crystallizes in the monoclinic space group P21/c, with a = 17.925（4）, b = 19.908（4）, c = 11.235（2） A, β = 97.65（3）°, V= 3973.4（14） A3, Dc = 1.552 g/cm^3, Z = 8, F（000） = 1910, the final GOOF = 1.056, R= 0.0519 and wR= 0.1293. The crystal structure shows that the whole molecule consists of two independent dinuclear units, in which two copper ions are bridged by twoμ2-η1 ：η0-3-carboxylate groups of L^2- anions. The fluorescence and thermal stability properties of 1 were studied. The results show that 1 has an intense fluorescent emission at around 381 rim. The TG analysis shows that I is stable below 143 ℃.
基金supported by the National Natural Science Foundation of China (20871099)the Natural Science Foundation of Gansu Province (0710RJZA113)
文摘A novel dinuclear copper（Ⅱ） complex [CuL（NO3）]2·2MeOH was obtained by the coordination reaction of Cu（NO3）2·3H2O with ligand HL （HL=N-（methyl-2-benzimidazol- methylidene）-2-hydroxyaniline）. The single-crystal X-ray analysis has revealed that the complex crystallizes in triclinic, space group P with a=9.535（3）, b=10.009（3）, c=10.666（4） , α=104.303（4）, β=100.105（4）, γ=115.917（4）o, V=839.0（5） 3, C16H16CuN4O5, Mr=407.87, Z=2, Dc=1.614 g/cm3, F（000）=418, μ=1.338 mm-1, R=0.0543 and wR=0.0980. The basic dinuclear copper（Ⅱ） complex units [CuL（NO3）]2 are formed by NO3- as co-bridging ligands and L as NNO tridentate chelate coordinating to the copper ions. The ladder-like one-dimensional chain motifs are formed by O…H-O and O…H-N hydrogen bonds from methanol molecules connecting the dinuclear copper（Ⅱ） units.
基金supported by the NNSF of Chinathe Special Funds of State Education Committee for Doctorate Scientific Research.
文摘Dinuclear Cu(Ⅱ)complexes(Cu,LCl4).2H2O and Cu2L'Cl4 are pre-pared and characterized by X-ray structure analysis.(Cu2I-Cl4).2H2O,C20 H40N6Cu2Cl4O2,Mr=665.54,monoclinic,6 for 188l observed reflections with I>3(I).Cu2L'Cl4,C20H36N6Cu2Cl4,M.=629.41,monoclinic,for 1330 observed reflections with I>3(I).In both complexes the stereo-chemistry about Cu(Ⅱ)is 5-coordinated with two secondary amine N atoms and twoCl-occupying sites at the base of a distorted square pyramid capped by the tertiaryamine N atom.The pair of Cl'attached to the two Cu(Ⅱ)are held in anti configuration.
基金Project supported by the Municipal Natural Science Foundation of Beijing （No. 2022011）.
文摘The X-ray crystallographic structure was reported for a dinuclear copper（Ⅱ） complex with a tetraanionic ligand of p-tert-butylsulfonylcalix[4]arene [Cu2L（CH3OH）6]·4CH3OH （H4L=p-tert-butylsuffonylcalix[4]arene）. The complex belongs to triclinic system, P1^-- space group, with a = 1.2303（3） nm, b = 1.2377（3） nm, c = 1.3110（3） nm, a =66.862（4）°, β= 67.206（4）°, γ=61.711（3）°, Z= 1, V= 1.5659（7） nm^3, Dc= 1.371 g/cm^3, F（000） = 682,μ（Mo Kα） = 0.883 mm^-1, R1 =0.0325, wR2=0.0870. In this complex, the calix[4]arene acts as a bis-tridentate chelating ligand with the 1,2-alternate conformation.
文摘The novel dinuclear copper(Ⅱ) complex with with N (2,4 dihydroxybenzalidene) o aminobenzoic acid ligand, [Cu(C14H9NO4)]2· 2H2O, has been synthesized and characterized by elemental analysis, IR, UV Vis and thermal analysis. Its crystal structure was determined by single crystal X ray diffraction techniques. The crystal belongs to monoclinic with space group P21/c. The cell parameters are: a=0.82510(11)nm, b=0.68870(9)nm, c=2.3007(3)nm, β =100.847(2)° , V=1.2840(3)nm3, Z=2, Dc=1.742Mg· m- 3, μ (MoKα )=1.723mm- 1, F(000)=684. The structure was refined to final R1=0.0267, wR2=0.0735. The complex molecule structure has dinuclear centrosymmetric dimeric structure in which a planar Cu2O2 core features. The ligand N (2,4 dihydroxybenzalidene) o aminobenzoic acid dianion is μ 2 tridentate, chelating one copper? ion via one nitrogen, one hydroxy oxygen atom and one carboxylate oxygen atom, and the hydroxy oxygen atom simultaneously coordinates to the other copper? ion of the dimer. In the structure the copper? ion rendered four coordination in a distorted square planar geometry structure. CCDC: 212695.
文摘大环双核铜(Ⅱ)配合物由N,N′-二甲基-N,N′-二(3-甲酰基-5-氯水杨醛)乙二胺和1,3-丙二胺,与铜(Ⅱ)反应形成的,经过X-射线单晶衍射结果表明:a=0.87105(16)nm,b=0.95778(18)nm,c=1.8104(3)nm,β=100.761(18)°,V=1.4838(5)nm3,Z=2,Dc=1.762Mg.m-3,μ=1.85 mm-1,F(000)=796,and final R1=0.061,wR2=0.126。晶体结构表明:两个铜离子位于双核大环中间,与大环的胺、亚胺以及酚羟基的氧进行配位。磁性结果表明配合物为反铁磁性。
文摘A novel dinuclear copper(Ⅱ) complex, [Cu2(phen)(dipic)2(H2O)2]·2H2O (phen=1,10-phenanthroline, dipicH2=2,6-pyridinedicarboxylic acid), has been prepared and structurally characterized. The complex crystallizes in the triclinic system, space group P1 with cell parameters a=0.846 0(17) nm, b=1.289 5(3) nm, c=1.452 7(3) nm, α=77.42(3)°, β=79.11(3)°, γ=87.08(3)°, and V=1.518 8(6) nm3. The dinuclear complex shows potential DNA cleavage activity at micromolar concentration in the presence of H2O2 and exhibits higher nuclease efficiency than mononuclear complex [Cu(dipic)(H2dipic)]·H2O. Without external reductants, the added H2O2 may contribute to the generation of hydroxyl radicals that result in DNA strand scission.CCDC:291786.
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.
