Hydrothermal Synthesis and Crystal Structure of a New One-dimensional Cobalt（Ⅱ） Complex with 2-Pyridinecarboxyic Acid and 4,4＇-Bipyridine Ligands

A new metal-organic coordination polymer [Co（2-pya）2（4,4＇-bipy）]2n-[（4,4＇- bipy）0.5· H2O]2n （2-pya = 2-pyridinecarboxylic acid, 4,4＇-bipy = 4,4＇-bipyridine） 1 has been hydrothermally synthesized and structurally characterized by elemental analysis, IR spectrum, TG and single-crystal X-ray diffraction. The complex crystallizes in tetragonal, space group I41/a with a = b = 22.719（2）, c = 10.710（2）/k, V = 5527.8（14） A3, C54H46N10Co2O10, Mr= 1112.87, Dc = 1.337 g/cm3,μ（MoKa） = 0.665 mm-1, F（000） = 2296, Z = 4, the final R = 0.0633 and wR = 0.1096 for 1261 observed reflections （I 〉 2σ（I））. It exhibits a one-dimensional chain-like structure constructed by mixed ligands of 2-pyridinedicarboxylic acid and 4,4＇-bipyridine.     

新的含有4-对甲基苯基-3，5-二(2-吡啶基)-1，2，4-三氮唑钴配合物的合成和晶体结构(英)

A new cobalt(Ⅱ) complex, [CoL₂(NCS)₂]·2CH₂Cl₂, [L=4-(p-methylphenyl)-3,5-bis(pyridin-2-yl)-1,2,4-triazole], was synthesized and its crystal structure was determined by X-ray analysis. The complex crystallizes in monoclinic system with space group P2₁/c, a=0.867 40(17), b=1.453 9(3), c=1.781 9(4) nm, β=91.18(3)°, V=2.246 7(8) nm³ and Z=2. The cobalt atom is in a distorted octahedral environment with two bidentate chelating L ligands in the equatorial plane and two NCS^- ions in the axial positions. CCDC: 251658.     

A Fluorescent Cobalt（II） Complex for the Recognition of Cations and Small Molecules： Synthesis, Structure and Characterization

A fluorescent cobalt(Ⅱ) complex, 1 [Co(H2bibim)2(5-nipa)], for the recognition of cations and small molecules constructed with 5-nitroisophthalic acid (5-H2nipa) and 2,2-biben-zimidazole(H2bibim) has been synthesized by hydrothermal methods and structurally characterized by elemental analysis, IR spectroscopy, PL and single-crystal X-ray diffraction. The cobalt units are six-coordinated by two H2bibim ligands and one 5-nitroisophthalic acid group, which are further connected into a three-dimensional (3D) network by intermolecular hydrogen bonds. Complex 1 exhibits fluorescence and thus has detection capabilities for different cations and small solvent molecules in the solution state at room temperature.     

Synthesis and Crystal Structure of Bis-{N-[2-(6-ethylpyridyl)]-salicylideneiminato} Cobalt(Ⅱ)

1 INTRODUCTION The Schiff bases derived from salicylaldehyde and 2-aminopyridine derivatives have been used as potentially terdentate ligands[1]. Yamada and Yam- anouchi have synthesized the type of ML2nH2O complexes (M = CoⅡ, NiⅡ, CuⅡ, ZnⅡ or PdⅡ)[     

3-羟基-1-金刚烷甲酸钴邻菲略啉配合物的合成和晶体结构

以硫酸钻、邻菲咯啉（phen）和3-羟基-1-金刚烷甲酸（HOC10H14COOH）为原料,合成了配合物[Co（HOG10H14COO）2（H2O）（phen）]·H2O;利用元素分析、红外光谱、热重分析对产物进行了表征,采用单晶X射线衍射方法测定了其晶体结构．结果表明,所合成的配合物C34H42N2O8Co属于单斜晶系,空间群C2／c,a=2．69798（7）nm,b=1．14319（3）nm,c=2．29092（6）nm,β=120．498（1）°,V665．63,F（000）=2808,Dc=1．452g·cm^-3,μ（Mo-Kα）=0．765mm^-1;R1=0.0805,wR2=0.2209,其通过氢键和π-π堆积作用相结合,形成稳定的二维超分子结构．     

苯丙烯酸桥联的双核镉配合物[Cd(cinnamato)2(Phen)]2的水热合成和晶体结构

A cadmium complex [Cd(cinnamato)₂(Phen)]₂ was synthesized by the reaction of cinnamic acid, phenanth-roline (phen), and Cd(ClO₄)₂·6H₂O. It crystallizes in triclinic, space group P1, with a=1.142 1(13) nm, b=1.157 6(13) nm, c=2.106 1(2) nm, α=80.307(2)°, β=77.334(2)°, γ=71.630(2)°, V=2.563 4(5) nm³, D_c=1.521 g·cm^-3, Z=2, M_r=586.90, μ=0.891 mm^-1, F(000)=1 184, the final R=0.031 7, wR=0.067 5. The crystal structure shows that the cadmium ion is coordinated with two nitrogen atoms from one phen molecule and five oxygen atoms respectively from three cinnamic acids, giving a pentagonal bipyramid coordination geometry. CCDC: 687380.     

三元混配配合物[Ni(PMBP-sal)(py)]的合成、表征与晶体结构

合成了混配配合物[Ni(PMBP-sal)(py)]，(PMBP：1-苯基-3-甲基-4-苯亚甲基吡唑啉酮-5，sal：水杨酰肼，py：吡啶)，并用元素分析，IR光谱，紫外可见吸收光谱，循环伏安和单晶X-射线衍射进行表征。结构分析表明N-(1-苯基-3-甲基-4-苯亚甲基吡唑啉酮-5)-水杨酰肼和吡啶与Ni(Ⅱ)配位形成略微畸变的平面正方形化合物。     

Synthesis and Structural Characterization of a New Cadmium(Ⅱ) Complex with a Double Betaine

A new flexible double betaine L (L =1,4-bis(pyridinio-4-carboxylato-N-methyl)and its crystal structure was determined by single-crystal X-ray diffraction analysis.Crystallo13.7854(3), b = 14.2820(3), c = 14.9188(4)(。A), β = 116.418(1)°, V = 2630.5(1)(。A)3, Z = 4, Dc = 1.704g/cm3, μ(MoKα) = 0.911 mm-1, F(000) = 1368, the final R = 0.0315 and wR = 0.0768 for 3637observed reflections with I ＞ 2σ(I).In complex 1, L acts as a monodentate ligand to link a Cd(Ⅱ) ion in a novel coordination mode of double betaines.The mononuclear [Cd(H2O)4L(NO3)] units are connected through intermolecular hydrogen bonds and π-π stacking reactions to generate a 3D network.     

Synthesis and Structural Characterization of Co(Ⅱ) Coordination Polymer [Co(-phth)(imi_)2]_n

1 INTRODUCTION The polymeric metal complexes with extended structures are of great interest because of their useful chemical or physical properties[1]. Due to the noticeable fact that the aromatic polycarboxylate can provide versatile coordination mode and the non-coplanar structure of the carboxylate groups and the benzene rings, a lot of efforts in this field have been particularly directed to the preparation of aromatic polycarboxylate (such as phthalate, tere- phthalate and isophthal…     

以邻菲咯啉及均苯三甲酸为配体的钴(Ⅱ)配合物的合成、晶体结构及性质研究

采用水热条件合成了1个钴配合物[Co(phen)(HBTC)(H2O)3].2.5H2O(phen=1,10-邻菲罗啉,H3BTC=均苯三甲酸),通过元素分析,红外光谱,紫外光谱,热重分析对其结构和性质进行表征及研究,用X-射线单晶衍射测定了该化合物的晶体结构。晶体属于单斜晶系,空间群为P21/n,晶胞参数a=0.78889(8)nm,b=1.9000(2)nm,c=1.56387(16)nm,β=98.780(2)°,V=2.3166(4)nm3,Z=4。标题化合物的不对称单元由1个配合物分子[Co(phen)(HBTC)(H2O)3]及2.5个结晶水分子组成,氢键将它们连接起来,形成了三维网络结构。利用循环伏安法测定了配合物的电化学性质,并测定了配合物的荧光光谱,发现配合物在383和469 nm两处有发射峰。     

Synthesis,Crystal Structure and Properties of the Cobalt(Ⅱ) Complex of Methyl-5-norbornene-2,3-dicarboxylic Acid

A new cobalt complex Co(C10H8N2)(H2O)3[C9H11O2(COO)] with methy-5-norbornene-2,3-dicarboxylic anhydride acid(MNA) and 2,2'-bipyridine as ligands has been synthesized in the mixed solvents of ethanol and water. It crystallizes in monoclinic, space group P21/c with a = 13.0430(13), b = 21.014(2), c = 7.5151(7) ?, β = 102.319(2)o, V = 2012.4(3) ?3, Dc = 1.529 g/cm3, Z = 4, F(000) = 964, GOOF = 1.051, the final R = 0.0457 and wR = 0.0974. The crystal structure shows that the cobalt ion is coordinated with four oxygen atoms from one MNA molecule and three water molecules together with two nitrogen atoms from the 2,2'-bipyridine molecule, forming a distorted octahedral coordination geometry. The thermal stability and electrochemical properties have studied in this paper.     

Synthesis,Characterization and Crystal Structure of One Ni_2（salen）_2 Complex

A homochiral complex,Ni 2 (salen) 2 (1,salen=(R,R)-(-)-N,N-bis(3-tert-butyl-5-(4ethynylpyridyl)salicyl-idene)-1,2-diaminocyclohexane),has been synthesized and characterized by IR,microanalysis,CD spectra,TGA,powder and single-crystal X-ray crystallography.It crystallizes in triclinic,space group P1 with a=11.896(2),b=12.571(3),c=13.197(3),α=65.61(3),β=73.90(3),γ=75.87(3)o,V=1707.9(6) 3,Z=2,C 42 H 42 N 4 NiO 2,M r=693.51,D c=1.349 g/cm 3,F(000)=732,μ=0.612 mm-1,GOOF=1.015,the final R=0.0290 and wR=0.0796 for 9002 observed reflections with I > 2σ(Ⅰ).The complex architecture is constructed by intermolecular π···π interaction and assembled into a 2D structure via C-H···π interactions between the cyclohexanes and pyridine rings.     

Synthesis and Crystal Structure of a Novel Two-dimensional Layered Polymer

The title complex [Zn(μ-O2CCH=CHCO2)(C3H4N2)(H2O)]n was prepared by the reaction of zinc carbonate with maleic acid and imidazole in an aqueous-alcohol solution at 333 K, and its crystal structure has been solved by single-crystal X-ray diffraction. The complex crystallizes in the monoclinic system, space group Pc with a = 5.3858(7), b = 22.685(3), c =7.6782(1) A, β = 92.261(2)°, V = 937.4(2) A3, Z = 1, C14H16N4O10Zn2, Mr= 531.05, Dc= 1.882g/cm3,μ = 2.623 mm-1, F(000) = 532, the final R = 0.0372 and wR = 0.0930 for 1926 observed reflections with I＞2σ(I). The central zinc atom is five-coordinated in a distorted square pyramidal environment to three oxygen atoms of two different maleate ligands, a nitrogen atom of the imidazole ligand and an oxygen atom of water. In the complex two carboxylate groups of the maleate ligands have two coordination modes. One acts as a bidentate chelate ligand and the other a monoatomic monodentate ligand to bridge two zinc centers. As a result, 1-D infinite polymeric coordination water OH groups and carboxylate oxygen atoms to construct a 2-D layered polymer,and the layer structure is stabilized by π-π stacking of the imidozel ligands.     

Synthesis and Characterization of 2,6-Bis(imino)phenoxy Cobalt Complexes

ＩｎｔｒｏｄｕｃｔｉｏｎＲｅｃｅｎｔｒｅｓｅａｒｃｈｅｆｆｏｒｔｓｈａｖｅｂｅｅｎｄｅｖｏｔｅｄｔｏｔｈｅｓｔｕｄｙｏｆｌａｔｅｔｒａｎｓｉｔｉｏｎｍｅｔａｌｃｏｍｐｌｅｘｅｓａｓｍｏｄｅｌｓｙｓｔｅｍｓｆｏｒｔｈｅｐｏｌｙｍｅｒｉｚａｔｉｏｎｏｒｏｌｉｇｏｍｅｒｉｚａｔｉｏｎｏｆｅｔｈｙｌｅｎｅ .1 3ＴｈｅｍｏｓｔｎｏｔａｂｌｅａｃｈｉｅｖｅｍｅｎｔｓｈａｖｅｂｅｅｎｄｏｎｅｂｙＢｒｏｏｋｈａｒｔ,4 Ｂｅｎｎｅｔｔ,5ａｎｄＧｉｂｓｏｎｇｒｏｕｐｓ .6,7Ｔｈｅｙｉｎｄｅ ｐｅｎｄｅｎｔｌｙｒｅｐｏｒ…     

钒氧多酸桥联大环铜配合物的合成及其晶体结构

以大环铜配合物［CuL］(ClO₄)₂(L=5,7,7,12,14,14-六甲基-1,4,8,11-四氮杂环十四-4,11-二烯)与NH₄VO₃反应合成了一个新的钒氧多酸桥联大环铜配合物［CuL］₂［H₂V₁₀O₂₈］·7H₂O(1),其结构经IR,元素分析和X-射线单晶衍射表征。1（CCDC: 1510831）属单斜晶系,P2(1)/n空间群,晶胞参数a=11.512(3) , b=18.170(4) , c=14.534(3) , β=102.997(4)°, V=2 962.3(11) ³, Dc=1.986 mg·cm^-3, Z=2, μ=2.300 mm^-1, R₁=0.047 2, wR₂=0.118 2。     

Synthesis and Crystal Structure of a New Mononuclear Cobalt(Ⅲ) Complex with 2,2′-Dipyridylamine and Glycine as Ligands

A new mononuclear cobalt(III) complex [Co(dpa)2(Gly)](ClO4)2′4H2O was synthesized by the reaction of Co2+, glycine (gly) and 2,2′-dipyridylamine (dpa) in a methanol-water solution, and its structure was characterized by IR, EA, ES-MS and X-ray structure analysis. The compound crystallizes in the monoclinic system, space group P21/n with a = 12.8795(2), b = 13.2904(2), c = 19.1104(2) , β = 109.378(1)°, V = 3085.89(8) 3, Z = 4, Mr = 746.36, Dc = 1.606 g/cm3, μ = 0.808 mm-1, F(000) = 1536, the final R = 0.0543 and wR = 0.1306 for 5393 independent reflections. The magnetic measurement of the compound at room temperature shows that it is diamagnetic and the cobalt ion is in low spin +3 oxidation state. ES-MS experiments show that the [Co(dpa)2(Gly)]2+ cation is very stable in the methanol solution.     

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…     

1,10-邻菲咯啉-铜(Ⅱ)-L-蛋氨酸配合物的合成、表征及其分子结构

The complex [Cu(L-met)(phen)(H₂O)]NO₃·H₂O has been synthesized and investigated by elemental analysis, molar conductivity, spectroscopic and X-ray diffraction methods, where phen=1,10-phenanthroline and L-met=L-methioninate group. The complex crystallized in the monoclinic space group P2₁ with a=12.053(2)?, b=6.886(1)?, c=13.385(3)?, β=113.59(3)°, V=1018.1(3)?³, Z=2,D_c=1.598g·cm^-3, μ=1.223mm^-1, F(000)=506, R₁=0.0306, and wR₂=0.0742. The copper(Ⅱ) atom is ligated in a distorted square-pyramidal geometry by two nitrogen atoms of one phen and the amino nitrogen atom , one carboxylate oxygen atom of L-met in the base plane, and an aqua at the apical position. A one-dimensional chain configuration formed by the hydrogen-bonding and weak Cu-O (the uncoordinated carboxyl oxygen atom) coordination interactions be-tween neighboring [Cu(L-met)(phen)(H₂O)]⁺ cations. CCDC: 183368.     

含钒氧链阴离子的苯基三联吡啶钴配合物的合成、晶体结构及性质研究

利用水热反应合成一种新型含钒氧链阴离子的苯基三联吡啶钴配合物{[Co(PhTPY)2]V3O9.3H2O}n(PhTPY=4′-ph-2,2′∶6′,2″-terpyridine)。用元素分析、红外光谱和X-射线单晶衍射对其结构进行了表征,该配合物晶体属单斜晶系,C2/c空间群。同时测定了配合物的热稳定性、荧光性质和磁性质。     

一个新的钴磷酸盐配合物Co(μ3-O3P)·H2O的合成与晶体结构

0引言 众所周知,天然硅铝酸盐沸石在选择性催化和气体分离方面具有重要的商业用途,具有类似结构的金属磷酸化合物作为潜在的吸附与离子交换材料、选择性催化剂和传感器等方面的应用性能正在引起人们的重视,因此模拟天然沸石结构、定向合成具有某种特定用途的金属磷酸化合物已引起人们的浓厚研究兴趣[1].