Synthesis, Crystal Structure and Thermoanalysis of Complex of Zn(Ⅱ) with Aminomethanesulfonic Acid-5-bromosalicylaldelyde Schiff Base

The title complex [Zn(L)(phen)(CH3OH)] (L= C8H6BrO4NS, aminomethanesulfonic acid 5-bromo-salicylaldelyde schiff base; phen = 1,10-phenanthroline) has been synthesized and characterized by X-ray diffraction method. The crystal belongs to monoclinic, space group P21/c with a = 1.8712(3), b = 1.38008(19), c = 0.83685(12) nm, β = 97.791 (2)°, Mr = 569.72, V = 2.1411(5)nm3,Z= 4, Dc = 1.767 g/cm3, μ = 3.151 mm-1, F(000) = 1144, the final R = 0.0402 and wR = 0.0885. The central Zn(Ⅱ) is six-coordinated by one nitrogen and two oxygen atoms from the Schiff base, two nitrogen atoms from 1,10-phenanthroline and one oxygen from methanol to form a distorted octahedral coordination geometry.     

Crystal Structure and Spectrum Properties of a Manganese Complex with Schiff Base Ligand，Mn（bzacen）（pyrimidine）（NCS）

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Synthesis and Crystal Structure of a Co(II) Complex with Schiff Base and Imidazole Ligand

1 INTRODUCTION The chemical behavior of metal complexes with Schiff base ligand has attracted much attention be- cause of their catalytic activity in some industrial[1, 2] and biochemical processes[3~5]. As some metal com- plexes have shown the catalytic activity in some polymerization reactions[2, 6], we are recently inte- rested in polymerizartion of organo-silicon com- pounds catalyzed by Schiff base complexes of tran- sition metals. A series of Schiff base complexes have been prepare…     

双核Cu(II)-牛磺酸缩水杨醛席夫碱配合物的合成、晶体结构及生物活性

合成了双核铜配合物 [Cu(TSSB) (H2 O) ] 2 ·2H2 O (TSSB =牛磺酸缩水杨醛席夫碱 ) ,通过元素分析、红外光谱对配合物进行了表征 ,并利用X射线法测定其结构 .晶体属三斜晶系 ,空间群P1- ,其晶胞参数为 :a =0 .69613 ( 19)nm ,b =0 .93 0 7( 3 )nm ,c=1.0 43 9( 3 )nm ;α =10 8.796( 5 )° ,β =10 1.2 71( 5 )° ,γ =10 5 .617( 5 )° ,V =0 .5 869( 3 )nm3 ,Z =1,Dcald=1.849g/cm3 ,μ =2 .0 5 8mm-1,F( 0 0 0 ) =3 3 4,Gof =1.0 79,Δρ =3 79～ -4 0 6e·nm-3 .两个铜原子配位数各为五 ,处于变形四方锥的配位环境中 .并对配合物进行了的生物活性试验 ,结果表明 ,配合物抗菌活性与青霉素接近 ,肿瘤抑制率达 63 .5 % .半数致死量为 10 0 0mg/kg .有可能成为一种新的抗菌、抗肿瘤药物     

Cu(Ⅱ)-牛磺酸缩水杨醛席夫碱-邻菲咯林三元配合物的合成、晶体结构及性质

The title complex was synthesized by reaction of taurine salicylic schiff base(TSSB), O-phenanthroline(phen) and cupric acetate in water-ethanol solution. The crystal structure was determined by X-ray diffraction method and the chemical formula weight of the complex is 498.00. The crystal structure of the title complex belongs to orthorhombic system with space group Pbcn and cell parameters: a=3.107 2(4) nm, b=1.289 09(18) nm, c= 1.034 78(14) nm; and V=4.144 7(10) nm³, Z=8, D_c=1.596 g·cm^-3, μ=1.197 mm^-1, F(000)=2 048. The compound is an one-dimensional chain complex of infinite length which are connected with hydrogen bonds. The Cu(Ⅱ) was coordinated by two oxygen atoms and three nitrogen while the o atoms of Ac- groups did not participate in the coordination. The Cu(Ⅱ) formed a distorted tetragonal pyramid and the capacities of coordination to Cu(Ⅱ) of atoms was discussed. Besides, the TG-IR of the complex was analyzed. The kinetics of the thermal decomposition reaction of the complex was studied under a non isothermal condition by TG-IR. TG and DTG curves indicate that the complex decomposed in three stages: (?) The kinetic parameters were obtained from the analysis of TG,DTG cures by OZAWA-Flynn-Wall method, and the activation energy and the value of A of the three stages are 74.98 kJ·mol^-1, 286.65 kJ·mol^-1, 87.55 kJ·mol^-1; 9.66×10⁸ s^-1,1.82×10²⁸ s^-1, 3.09×10³s^-1, respectively.     

牛磺酸缩5-溴水杨醛席夫碱合镍(II)配合物的合成及晶体结构

The reaction of Ni(Ac)₂, Taurine, 5-bromo-salicylaldehyde afford a complex, [Ni(C₉H₈BrNO₄S)(H₂O)₃]·H₂O. Its structure has been determined by single crystal X-ray diffraction. It crystallizes in monoclinic, P2₁/c, a=1.479 98(6) nm, b=1.397 97(6) nm, c=0.746 60(3) nm, β=99.364(2)°, V=1.524 11(11) nm³. Nickel(II) coordinated with six atoms, forming a octahedron. These octahedrons are further interlinked by the hydrogen bonds. CCDC: 639681.     

Synthesis and Crystal Structure of a Zinc(II) Complex Salt with the Schiff Base of Picolinaldehyde N-oxide and Semicarbazone

1 INTRODUCTION The donor properties of pyridine N-oxide and its substituted derivatives to form metal complexes have been widely investigated[1～3]. The resulting comple- xes were used as drugs[4] and catalysts[5]. So far, there have been a few reports on the synthesis of Schiff base derived from picolinaldehyde N-oxide with se- micarbazone (PNOS Scheme 1) and its metal com- plexes. And crystal structures of the complexes of PNOS with Au(III)[6], Pd(II)[7] and Cu(II)[8] were re- …     

镓的席夫碱配合物的合成及晶体结构

在无水无氧条件下,合成了3个镓的席夫碱配合物GaCl3(C13H11NO)(1)、GaCl3(C14H13NO2)(2)和GaCl3(C13H9ClNO)(3),对它们进行了元素分析、核磁共振、红外光谱等表征,并用X射线衍射测定了配合物的单晶结构。各配合物配位方式均为配体中酚羟基氧原子与中心镓原子配位,在空间上形成畸变的四面体结构。配合物1属于正交晶系,Pnma空间群,晶胞参数:a=1.3295(3)nm,b=0.70115(16)nm,c=1.6164(4)nm,V=1.5068(6)nm3,Z=4,F(000)=744,R1=0.0295,wR2=0.0651。配合物依靠分子间的氢键作用进一步联结成二维网状结构。配合物2属于单斜晶系,P21/n空间群,晶胞参数:a=0.71303(18)nm,b=1.7153(4)nm,c=1.3503(4)nm,β=91.891(5)°,V=1.6507(7)nm3,Z=4,F(000)=808,R1=0.0443,wR2=0.0988。配合物依靠分子间的氢键作用进一步联结成二维网状结构。配合物3属于三斜晶系,P1空间群,晶胞参数:a=0.6986(2)nm,b=1.0449(4)nm,c=1.1369(3)nm,α=78.58(3)°,β=81.06(2)°,γ=87.87(3)°,V=0.8036(5)nm3,Z=2,F(000)=402,R1=0.0515,wR2=0.1244。配合物依靠分子间的氢键作用进一步联结成二维网状结构。     

Synthesis and Crystal Structure of Complex of Zinc（Ⅱ） with Schiff Base—{Zn［CH_3O（O）－C_6H_3CH_3＝NN＝C（S）NH_2］（DMF）}_2

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Synthesis, Crystal Structure and Cytotoxic Activity of a Novel Nickel(II) Complex with Schiff Base Derived from Salicylhydrazide

A novel Schiff base complex with π-conjugated system, [Ni(L1)2(py)2] 1 (L1 = (E)-N'-(2,4-dichlorobenzylidene)-2-oxidobenzohydraizide), was synthesized and characterized by elemental analysis and single-crystal X-ray determination. Complex 1 crystallizes in the monoclinic system, space group P21/n with a = 12.8286(10), b = 16.3573(13), c = 19.0206(14) , β = 108.2920(10)o, V = 3789.6(5) 3, Z = 4, Mr = 833.17, Dc = 1.460 g/cm3, μ = 0.843 mm-1, F(000) = 1704, the final R = 0.0537 and wR = 0.0640 for 3836 observed reflections with I > 2σ(I). In the molecular structure of 1, the NiII atoms are six-coordinated by two N and two O atoms from two Schiff base ligands (L1) and two N atoms from two pyridine solvent molecules to form a distorted octahedral geometry. The cytotoxic activities of complex 1 have been experimentally studied against a human HeLa cell in vitro.     

以Schiff碱N-丁酰基水杨酰肼为配体的三核镍(Ⅱ)配合物的合成与结构

The trinuclear nickel (Ⅱ) complex Ni3(C11H11N2O3)2(C5H5N)4 was prepared by the reaction of Ni(OAc)2 @ 4H2Owith N-butylsalicylhydrazide Schiff base ligand and characterized by X-ray crystallography. The crystal belongs totriclinic, Mr=930.91, space group P1 with cell parameters a =9. 8489(2)A, b = 12. 3110(2) A, c = 18. 4035(3) A, α=71.353(2)°, β=76.638(2)°, γ=84.815(2)°, V=2056.72(6)A3, Z=2, Dc=1.503g@cm-3,μ(MoKα) = 1. 417mm-1, F(000) = 964, R = 0. 0317, wR = 0. 0868. A total of 5393 independent reflectionswere collected, of which 4448 reflections with I ≥ 2 σ(I) were observed. There are two centrosymmetrical trin-angle of 180°. The interatomic distances between the nickel atoms on the two sides are 9. 2030(8) A and 9. 1876(9) A for the two molecules, respectively. The central nickel atom adopts an axially elongated octahedral geometrywhereas the nickel atoms on the two sides have square-planar coordination environment. CCDC: 194083.     

Synthesis, Crystal Structure, Properties and Thermoanalysis of Complexes of Cu(II) and Ni(II) with Taurine-5-chlorosalicylaldelyde Schiff Base

Introduction The complexes of amino acid Schiff base have re-ceived considerable attention because of the interests in the biogical field.1-4 Taurine is a special amino acid in human beings. Recently, the complexes of taurine con-densation salicylaldelyde Schiff base have been re-ported,3-7 but the complexes of taurine condensation derived salicylaldelyde Schiff base have not been re-ported yet. In order to examine its anticancer and antibiosis ac-tivity of the complexes of taurine condensa…     

水杨醛-L-缬氨酸合铜(Ⅱ)配合物的合成、晶体结构及热分析研究

X射线单晶结构分析结果表明，深蓝色的水杨醛-L-缬氨酸二吡啶合铜（Ⅱ）配合物晶体-C22H23CuN3O3属单斜晶系，空间群对1114可观测衍射最终一致性因子为R＝0．066，该配合物中心离子是5配位的，其中希夫碱配体提供3个配位原子：N（1）、O（1）、0（2）；另外2个配位原子为2个吹吹分子提供的N（2），N（3）。N（1），N（2），N（3）组成三角形平面与O（1），O（2）构成三角双锥，Cu的配住为畸变三角双锥构型。其中，N（1），N（2），N（3）为赤道配位原子，而O（1）－Cu－O（2）为配合物的轴。     

席夫碱三核锌(II)配合物的晶体结构及荧光活性研究

以二甲基甲酰胺(DMF)为溶剂成功合成了水杨醛缩水杨酰肼席夫碱/2-氨基吡啶/锌三元混配配合物晶体, 通过测定配合物的红外、元素分析和单晶衍射等物理性质, 确定该配合物是一种三核配合物. Ｘ射线衍射实验结果表明: 标题配合物晶体属于三斜晶系, 空间群为P1, Z＝1, 分子式为Zn₃(L1)₂(2-NH₂-py)₄•0.5DMF, a＝1.15359(9) nm, b＝1.92734(15) nm, c＝2.31772(19) nm, α＝78.290(2)°, β＝78.6930(10)°, γ＝88.1090(10)°, V＝4.9478(7) nm³, D_c＝1.498 g/cm³. F(000)＝2288, μ(Mo Kα)＝1.506 mm^－1, R＝0.0449, wR＝0.0787. 同时在DMF溶液中测定了该Schiff碱及其锌配合物的荧光活性.     

Synthesis and Crystal Structure of a Zinc(Ⅱ) Complex Salt with the Schiff Base of Picolinaldehyde N-oxide and Semicarbazone

The title zinc(Ⅱ) complex salt [Zn(H2O)6](ClO4)2·(PNOS)4, where PNOS is derived from picolinaldehyde N-oxide with semicarbazone, has been prepared and structurally characterized by X-ray single-crystal analysis. It crystallizes in triclinic, space group P1 with a = 7.529(3),b = 10.206(4), c = 14.678(6) A, α = 86.293(6), β = 87.686(7), γ= 81.382(6)°, C28H44Cl2N16O22Zn,Mr = 1093.06, V= 1112.3(8) A3, Z = 1, Dc = 1.632 g/cm3, S = 1.089,μ(MoKα) = 0.773 mm-1 ,F(000) = 564, the final R = 0.0438 and wR = 0.1076 for 3888 independent reflections with Rint =0.0224. The crystal structure possesses a [Zn(H2O)6]2+ cation, two ClO4- anions and four PNOSs.In the crystal structure, Zn2+ cation is located at the symcenter and coordinated by six water molecules. In [Zn(H2O)6]2+, an elongate octahedral complex cation, the average Zn-O bond length is 2.087(2) A. There exist a lot of H bonds in the structure, linking the cation [Zn(H2O)6]2+, anion ClO4-and PNOS to form a 3D network.     

双核钒席夫碱配合物[VO(μ2-O)(o-Vanillin-en)]2的合成、结构及与DNA相互作用

在甲醇体系中乙酰丙酮氧钒与邻香草醛缩牛磺酸钾席夫碱在乙二胺存在下反应得到一个双核钒配合物。通过红外光谱和X-射线单晶衍射对其进行了表征。晶体结构表明该化合物的晶体属于三斜晶系，P1空间群，晶胞参数为a=0.898 67(19)nm，b=1.159 3(3) nm，c=1.200 0(3) nm，α=106.872(3)°，β=102.718(4)°，γ=94.905(3)°，Z=2。通过紫外吸收光谱法和循环伏安法研究了钒配合物与小牛胸腺DNA间的相互作用。紫外吸收光谱法得到配合物与DNA的结合常数为1.77×10⁴ dm³·mol^-1。     

Synthesis and Crystal Structure of a New Nickel(II) Complex with Unsymmetric Quadridentate Schiff Base Containing Oxime

1 INTRODUCTION The interest in the complexes of transition met-als with ketoxime ligands[1, 2] as potential modelsfor metal binding sites in ferroverdin[3, 4] hasprompted the investigations on the structures andthe overall coordination geometry of the metalcenters in these complexes. Oxime derivatives areinteresting ligands since the ketoximes are foundto chelate transition metals through the N (oxime)and O (ketone) donors[5～10]. Herein we report thesynthesis…     

Synthesis and Crystal Structure of a Dinuclear Cu(II) Complex with Tridentate Schiff Base and Azido Bridge

1 INTRODUCTION The azido ligand is an efficient superexchange path-way for propagating magnetic interaction between theparamagnetic centers, such as copper(II), giving di-nuclear, tetranuclear, 1D, 2D and 3D complexes[1～4].The versatility of this ligand due to its diverse bin-ding modes leads to the variation in magnetic pro-perties that depend on its orientation with respect tothe magnetic centers. In general, the bridging modesobserved for the azido group are endtoend and en-don. In…     

Synthesis and Crystal Structure of a Mononuclear Zn(II) Complex with Tridentate Schiff Base,Zn(C_(12)H_(18)N_2O)(NCS)_2

1 INTRODUCTION In recent years there has been considerable and increasing interest in the synthesis of transition metal complexes with multidentate Schiff base ligands[1~4] because such ligands can accommodate one, two or more metal centers and may synthesize homo and/or heteronuclear metal complexes with interesting ste- reochemistry[5, 6]. In addition, these metal complexes can be used for biological modeling applications, catalysis, design of molecular ferromagnet and mate- rials chemis…     

Cu(Ⅱ)-牛磺酸缩水杨醛席夫碱配合物的合成及晶体结构

The title complex was synthesized by reaction of taurine salicylic schiff base(TSSB), O-phenanthroline(phen) and cupric acetate in water-ethanol solution. The crystal structure was determined by X-ray diffraction method and the chemical formula weight of the complex is 498.00. And the crystal structure belongs to orthorhombic system with space group Pbcn and cell parameters: a=31.072(4)?, b=12.8909(18)?, c=10.3478(14)?; V=4144.7(10)?³,Z=8,D_c=1.596Mg·m^-3,μ=1.197mm^-1 and F(000)=2048. The compound is an one-dimensional chain complex of infinite length connecting with hydrogen bonds. The Cu(Ⅱ) was coordinated by two oxygen atoms and three nitrogen while the O atoms of Ac- groups did not coordinate. At the same time the Cu(Ⅱ)formed a distorted tragonal cone. Besides the capacities of coordination to Cu(Ⅱ) of atoms were discussed.