Two new coordination polymers, [Zn(bba)_2(bib)]_(2n)(1) and [Co_(0.5)(bba)(bib)_(0.5)]_(2n)(2)(Hbba = 4-bromobenzoic acid, bib = 1,4-bis(imidazol-1-yl)-butane), have been hydrothermally designed and synthesized, and t...Two new coordination polymers, [Zn(bba)_2(bib)]_(2n)(1) and [Co_(0.5)(bba)(bib)_(0.5)]_(2n)(2)(Hbba = 4-bromobenzoic acid, bib = 1,4-bis(imidazol-1-yl)-butane), have been hydrothermally designed and synthesized, and their structures were determined by elemental analyses, IR spectroscopy, TG, fluorescence spectroscopy, X-ray single-crystal and powder diffraction. Complexes 1 and 2 both belong to the monoclinic system and exhibit one-dimensional zigzag chain-like structure. In addition, we analyzed Natural Bond Orbital(NBO) in using the PBE0/LANL2 DZ method built in Gaussian 03 Program. The calculation results indicated the obvious covalent interaction between the coordinated atoms and Zn(Ⅱ), Co(Ⅱ) ions.展开更多
A novel Zn(Ⅱ) complex, [ZnL2(H2O)4]·H2O(1, HL = 2-(nicotinoyloxy)acetic acid), was synthesized using Zn(OAc)2·2H2O and 2-(nicotinoyloxy)acetic acid as raw materials. Its structure has been eluci...A novel Zn(Ⅱ) complex, [ZnL2(H2O)4]·H2O(1, HL = 2-(nicotinoyloxy)acetic acid), was synthesized using Zn(OAc)2·2H2O and 2-(nicotinoyloxy)acetic acid as raw materials. Its structure has been elucidated by elemental analysis, IR and single-crystal X-ray diffraction. The structural analysis revealed that complex 1 crystallizes in triclinic, space group P1 and the Zn(Ⅱ) atom is six-coordinated with two N atoms from two different 2-(nicotinoyloxy)acetate anion ligands and four O atoms from coordinated water molecules. Complex 1 forms a 3D network structure by O–H···O hydrogen bonds. The antitumor activities of 2-(nicotinoyloxy)acetic acid ligand and its Zn(Ⅱ) complex were evaluated against human lung adenocarcinoma A549 cells, human hepatoma SMMC-7721 cells and human colon carcinoma Wi Dr cells.展开更多
A new Zn(Ⅱ) complex, [Zn(L)2(phen)(H2O)](1, HL = N-acetyl-L-phenylalanine, phen = 1,10-phenanthroline) has been synthesized and characterized by elemental analysis, IR and X-ray single-crystal diffraction a...A new Zn(Ⅱ) complex, [Zn(L)2(phen)(H2O)](1, HL = N-acetyl-L-phenylalanine, phen = 1,10-phenanthroline) has been synthesized and characterized by elemental analysis, IR and X-ray single-crystal diffraction analysis. The Zn(Ⅱ) complex belongs to monoclinic, space group P21 with a = 12.6749(13), b = 5.5965(6), c = 22.985(2) A, β = 104.296(2)°, V = 1580.0(3) A^3, Z = 2, Mr = 676.02, Dc = 1.421 μg·m^(-3), μ = 0.833 mm^-1, F(000) = 704, and the final R = 0.0460, wR = 0.0899 for 4422 observed reflections with I 〉 2σ(I). The molecules form a 1D chained structure by hydrogen bonds. The antitumor activities of Zn(Ⅱ) complex against human hepatoma SMMC-7721 cells, human lung adenocarcinoma A549 cells and human colon carcinoma WiDr cells have also been investigated.展开更多
A new copper(Ⅱ) complex, [Cu(BMI)4(SO4)]·DMF·2H2O (BMI = benzimidazole), has been synthesized by the treatment of CuCN with 2-mercaptobenzimidazole in the presence of 1,10-phenanthroline, and charac...A new copper(Ⅱ) complex, [Cu(BMI)4(SO4)]·DMF·2H2O (BMI = benzimidazole), has been synthesized by the treatment of CuCN with 2-mercaptobenzimidazole in the presence of 1,10-phenanthroline, and characterized by single-crystal X-ray diffraction. It crystallizes in monoclinic, space group P21/n with a = 17.6260(4), b = 11.1252(3), c = 18.6573(4)A°, β= 107.9010(10)°, V = 3481.45(14)A°^3, Z = 4, C31H35CuN9O7S, Mr= 741.28, F(000) = 1540, Dc = 1.414 g/cm^3,μ = 0.746 mm^-1, the final R = 0.0649 and wR = 0.1609 for 4382 observed reflections with I 〉 2σ(I). The Cu(Ⅱ) atom is coordinated by five unidentate ligands (one sulfate and four benzimidazole ligands) generated in situ, displaying a slightly distorted square pyramid geometry.展开更多
Under hydrothermal condition, the reaction of 2-naphthoxyacetic acid with ZnCl2 and 4,4′-bipyridine (4,4′-bipy) has afforded a new Zn(Ⅱ) compound, [Zn(C12H9O3)2(C10H8N2)]n·nH2O1, which was structurally...Under hydrothermal condition, the reaction of 2-naphthoxyacetic acid with ZnCl2 and 4,4′-bipyridine (4,4′-bipy) has afforded a new Zn(Ⅱ) compound, [Zn(C12H9O3)2(C10H8N2)]n·nH2O1, which was structurally characterized by single-crystal X-ray diffraction analysis. The crystal is of monoclinic, space group P21/c with a = 7.7335(2), b = 19.3834(4), c = 20.1707(4) A, β = 104.9830(10)°, V = 2920.82(11) A^3, C34H28ZnN2O7, Mr = 641.95, Z = 4, Dc = 1.460 g/cm^3,μ = 0.895 mm^-1, F(000) = 1328, R = 0.0406 and wR = 0.0876 for 4417 observed reflections (I〉 2σ(I)) Complex 1 consists of one-dimensional zigzag chains deriving from Zn(C12H9O3)2 units linked by 4,4′-bipy ligands, and lattice water molecules decorate between the chains. Non-covalent interactions, such as hydrogen-bonding and aromatic π-π interactions, lead to the formation of a 3D network structure. The thermogravimetric analysis (TGA) and luminescent property for 1 have also been studied in this paper.展开更多
u(Ⅰ), Zn(Ⅱ), Fe(Ⅱ), Sn(Ⅱ), Pb(Ⅱ) complexes of 1,5 bis(3 nitroacetophenone) thiocarbohydrazone were synthesized by the electrochemical oxidation of anodic metal in non aqueous solvents. The complexes were characte...u(Ⅰ), Zn(Ⅱ), Fe(Ⅱ), Sn(Ⅱ), Pb(Ⅱ) complexes of 1,5 bis(3 nitroacetophenone) thiocarbohydrazone were synthesized by the electrochemical oxidation of anodic metal in non aqueous solvents. The complexes were characterized by elemental analysis, IR UV, magnetic measurement, and molar conductivity etc.展开更多
合成了二亚乙基三胺(dien)和咪唑为配体的两个铜(Ⅱ)单核配合物[(dien)Cu](ClO4)2[、(dien)Cu imH](ClO4)2和一个非对称性的咪唑桥联铜锌异双核配合物[(dien)Cu im Zn(tren)](ClO4)3,用元素分析、摩尔电导、反射光谱及磁化率测定对配合...合成了二亚乙基三胺(dien)和咪唑为配体的两个铜(Ⅱ)单核配合物[(dien)Cu](ClO4)2[、(dien)Cu imH](ClO4)2和一个非对称性的咪唑桥联铜锌异双核配合物[(dien)Cu im Zn(tren)](ClO4)3,用元素分析、摩尔电导、反射光谱及磁化率测定对配合物的组成和结构进行了表征。采用循环伏安法分别研究了配合物在乙腈和水溶液中的电化学性质,研究表明,Zn(Ⅱ)能通过咪唑桥改变Cu(Ⅱ)接受电子的能力,增强催化歧化超氧离子的活性。在水溶液中咪唑桥异双核配合物不很稳定,部分从Zn(Ⅱ)端断裂。展开更多
This paper reports the synthesis,properties and crystal structure of the title model compound with the ESR parameters g_∥ =2.007,g_⊥=2.191, A_∥=0.0061 cm^(-1), and A_⊥=0.0114 cm^(-1). The crystal belongs to space ...This paper reports the synthesis,properties and crystal structure of the title model compound with the ESR parameters g_∥ =2.007,g_⊥=2.191, A_∥=0.0061 cm^(-1), and A_⊥=0.0114 cm^(-1). The crystal belongs to space group C_2~2-P2_1,a=8.924(2),b=11.590(4), c=16.356(6),β =91.40(2)°,Z=2.Cu(Ⅱ) and Zn(Ⅱ) are bridged by the imidazolate ring, with the distance of 5.84.The conductivity and electronic reflectance spectrum of the complex are described.pH dependence in an aqueous solution is also investigated by potentiometric titration, and fitted by a self-written computer program. The results indicate that the imidazolate bridge splits at the side facing Zn(Ⅱ) below pH 8.展开更多
基金The project was supported by the Science and Technology development plan of Jilin province(2015052006JH)
文摘Two new coordination polymers, [Zn(bba)_2(bib)]_(2n)(1) and [Co_(0.5)(bba)(bib)_(0.5)]_(2n)(2)(Hbba = 4-bromobenzoic acid, bib = 1,4-bis(imidazol-1-yl)-butane), have been hydrothermally designed and synthesized, and their structures were determined by elemental analyses, IR spectroscopy, TG, fluorescence spectroscopy, X-ray single-crystal and powder diffraction. Complexes 1 and 2 both belong to the monoclinic system and exhibit one-dimensional zigzag chain-like structure. In addition, we analyzed Natural Bond Orbital(NBO) in using the PBE0/LANL2 DZ method built in Gaussian 03 Program. The calculation results indicated the obvious covalent interaction between the coordinated atoms and Zn(Ⅱ), Co(Ⅱ) ions.
基金supported by the National Natural Science Foundation of China(No.21171132)the Project of Shandong Province Higher Educational Science and Technology Program(J14LC01)Science Foundation of Weifang
文摘A novel Zn(Ⅱ) complex, [ZnL2(H2O)4]·H2O(1, HL = 2-(nicotinoyloxy)acetic acid), was synthesized using Zn(OAc)2·2H2O and 2-(nicotinoyloxy)acetic acid as raw materials. Its structure has been elucidated by elemental analysis, IR and single-crystal X-ray diffraction. The structural analysis revealed that complex 1 crystallizes in triclinic, space group P1 and the Zn(Ⅱ) atom is six-coordinated with two N atoms from two different 2-(nicotinoyloxy)acetate anion ligands and four O atoms from coordinated water molecules. Complex 1 forms a 3D network structure by O–H···O hydrogen bonds. The antitumor activities of 2-(nicotinoyloxy)acetic acid ligand and its Zn(Ⅱ) complex were evaluated against human lung adenocarcinoma A549 cells, human hepatoma SMMC-7721 cells and human colon carcinoma Wi Dr cells.
基金supported by the National Natural Science Foundation of China(No.21171132)the Project of Shandong Province Higher Educational Science and Technology Program(J14LC01)Science Foundation of Weifang
文摘A new Zn(Ⅱ) complex, [Zn(L)2(phen)(H2O)](1, HL = N-acetyl-L-phenylalanine, phen = 1,10-phenanthroline) has been synthesized and characterized by elemental analysis, IR and X-ray single-crystal diffraction analysis. The Zn(Ⅱ) complex belongs to monoclinic, space group P21 with a = 12.6749(13), b = 5.5965(6), c = 22.985(2) A, β = 104.296(2)°, V = 1580.0(3) A^3, Z = 2, Mr = 676.02, Dc = 1.421 μg·m^(-3), μ = 0.833 mm^-1, F(000) = 704, and the final R = 0.0460, wR = 0.0899 for 4422 observed reflections with I 〉 2σ(I). The molecules form a 1D chained structure by hydrogen bonds. The antitumor activities of Zn(Ⅱ) complex against human hepatoma SMMC-7721 cells, human lung adenocarcinoma A549 cells and human colon carcinoma WiDr cells have also been investigated.
基金This work was supported by the NNSF of China (Nos. 20471061 and 30170229) and the Science & Technology Innovation Foundation for the Young Scholar of Fujian Province (No. 2005J059)
文摘A new copper(Ⅱ) complex, [Cu(BMI)4(SO4)]·DMF·2H2O (BMI = benzimidazole), has been synthesized by the treatment of CuCN with 2-mercaptobenzimidazole in the presence of 1,10-phenanthroline, and characterized by single-crystal X-ray diffraction. It crystallizes in monoclinic, space group P21/n with a = 17.6260(4), b = 11.1252(3), c = 18.6573(4)A°, β= 107.9010(10)°, V = 3481.45(14)A°^3, Z = 4, C31H35CuN9O7S, Mr= 741.28, F(000) = 1540, Dc = 1.414 g/cm^3,μ = 0.746 mm^-1, the final R = 0.0649 and wR = 0.1609 for 4382 observed reflections with I 〉 2σ(I). The Cu(Ⅱ) atom is coordinated by five unidentate ligands (one sulfate and four benzimidazole ligands) generated in situ, displaying a slightly distorted square pyramid geometry.
基金Supported by the Foundation of Zhejiang Key Laboratory for Reactive Chemistry on Solid Surfaces (No. 0506)Department of Education of Zhejiang Province (No. 20071374)
文摘Under hydrothermal condition, the reaction of 2-naphthoxyacetic acid with ZnCl2 and 4,4′-bipyridine (4,4′-bipy) has afforded a new Zn(Ⅱ) compound, [Zn(C12H9O3)2(C10H8N2)]n·nH2O1, which was structurally characterized by single-crystal X-ray diffraction analysis. The crystal is of monoclinic, space group P21/c with a = 7.7335(2), b = 19.3834(4), c = 20.1707(4) A, β = 104.9830(10)°, V = 2920.82(11) A^3, C34H28ZnN2O7, Mr = 641.95, Z = 4, Dc = 1.460 g/cm^3,μ = 0.895 mm^-1, F(000) = 1328, R = 0.0406 and wR = 0.0876 for 4417 observed reflections (I〉 2σ(I)) Complex 1 consists of one-dimensional zigzag chains deriving from Zn(C12H9O3)2 units linked by 4,4′-bipy ligands, and lattice water molecules decorate between the chains. Non-covalent interactions, such as hydrogen-bonding and aromatic π-π interactions, lead to the formation of a 3D network structure. The thermogravimetric analysis (TGA) and luminescent property for 1 have also been studied in this paper.
文摘u(Ⅰ), Zn(Ⅱ), Fe(Ⅱ), Sn(Ⅱ), Pb(Ⅱ) complexes of 1,5 bis(3 nitroacetophenone) thiocarbohydrazone were synthesized by the electrochemical oxidation of anodic metal in non aqueous solvents. The complexes were characterized by elemental analysis, IR UV, magnetic measurement, and molar conductivity etc.
文摘合成了二亚乙基三胺(dien)和咪唑为配体的两个铜(Ⅱ)单核配合物[(dien)Cu](ClO4)2[、(dien)Cu imH](ClO4)2和一个非对称性的咪唑桥联铜锌异双核配合物[(dien)Cu im Zn(tren)](ClO4)3,用元素分析、摩尔电导、反射光谱及磁化率测定对配合物的组成和结构进行了表征。采用循环伏安法分别研究了配合物在乙腈和水溶液中的电化学性质,研究表明,Zn(Ⅱ)能通过咪唑桥改变Cu(Ⅱ)接受电子的能力,增强催化歧化超氧离子的活性。在水溶液中咪唑桥异双核配合物不很稳定,部分从Zn(Ⅱ)端断裂。
基金Project supported by the National Natural Science Foundation of China.
文摘This paper reports the synthesis,properties and crystal structure of the title model compound with the ESR parameters g_∥ =2.007,g_⊥=2.191, A_∥=0.0061 cm^(-1), and A_⊥=0.0114 cm^(-1). The crystal belongs to space group C_2~2-P2_1,a=8.924(2),b=11.590(4), c=16.356(6),β =91.40(2)°,Z=2.Cu(Ⅱ) and Zn(Ⅱ) are bridged by the imidazolate ring, with the distance of 5.84.The conductivity and electronic reflectance spectrum of the complex are described.pH dependence in an aqueous solution is also investigated by potentiometric titration, and fitted by a self-written computer program. The results indicate that the imidazolate bridge splits at the side facing Zn(Ⅱ) below pH 8.