双核镍配合物[Ni_2(p-PhDTA)(2,2′-bipy)_2(H_2O)_2]·4H_2O的合成与晶体结构

0引言氨基酸类化合物及其衍生物因含有多个N、O原子作为配位点,能与金属离子及其他配体形成结构新颖的簇合物和多维的结构[1～5],它们一般具有特殊的光电磁学性质或者独特的催化活性,因而具有潜在的应用价值。而且由于此类化合物的羧基氧原子可以与分子内的氢、邻近分子的氢或者溶剂分子的氢形成强弱不等的氢键进行超分子自组装,因而近年来赢得晶体学者和晶体工程研究工作者的关注。苯二胺类多羧酸取代衍生物由于引入了刚性结构的苯环,可以同时通过氢键和π-π两种弱相互作用构建晶体结构和自组装而得到一定的关注[6～16]。在目前的晶体结…     

双核镍配合物[Ni2(p-PhDTA)(2,2''-bipy)2(H2O)2]·4H2O的合成与晶体结构

O引言 氨基酸类化合物及其衍生物因含有多个N、O原子作为配位点,能与金属离子及其他配体形成结构新颖的簇合物和多维的结构[1～5],它们一般具有特殊的光电磁学性质或者独特的催化活性,因而具有潜在的应用价值.     

配合物[Mn(2,2′-bipy)(H2O)4]·(m-phth)的水热合成和晶体结构

A mononuclear manganese complex [Mn(2,2′-bipy)(H₂O)₄]·(m-phth) (2,2′-bipy=2,2′-bipyridine, m-phth=isophthalate) has been synthesized by hydrothermal methods. The crystal structure was determined by single-crystal X-ray diffraction. The crystal is of orthorhombic, space group Pnna with a=0.766 8(8) nm, b=2.050 2(2) nm, c=1.247 0(13) nm, V=1.960 4(4) nm³, Z=4, M_r=447.30, D_c=1.376 g·cm^-3, μ=0.722 mm^-1, F(000)=924, R_int=0.027 0, R=0.028 0 and wR=0.075 5. In the crystal the manganese atom is six-coordinated by two nitrogen atoms from 2,2′-bipyradine and four oxygen atoms from water molecules, completing an octahedral coordination geometry. The isophthalate molecules are included in the lattice and connected to Mn(2,2′-bipy)(H₂O)₄ by hydrogen bonding interactions to form a three-dimensional supramolecular structure. CCDC:286965.     

一个双核镍配合物[Ni2(Htda)2(H2O)6]·4H2O的合成、晶体结构和性质

双核金属配合物对于生物化学和磁化学都是非常重要的。在本文中,1,2,3-三氮唑-4,5-二羧酸(H₃tda)配体和硝酸镍在常温常压下反应得到了1个三氮唑桥联的双核镍配合物[Ni₂(Htda)₂(H₂O)₆]·4H₂O (1),并通过元素分析、红外光谱、X-射线单晶衍射、热重分析以及超导量子干涉仪(SQUID)对其晶体结构和磁、热性质进行了表征。晶体数据表明该配合物属三斜晶系,空间群为P1。在配合物1中,2个1,2,3-三氮唑-4,5-二羧酸配体利用2个相邻的氮原子桥联2个金属镍离子形成一个双桥的双核镍配合物。这些双核镍单元又通过体系中存在的大量的氢键相互作用形成了三维超分子骨架。磁性分析显示双核镍单元内镍镍之间存在反铁磁相互作用。     

[Ni(C6H4N2)(CHC6H4O)2]配合物晶体结构及性质

The complex has been synthesized and characterized by spectroscopic techniques and single-crystal X-ray analysis. The crystal is orthorhombic ， space group P2₁2₁2₁ with a=1.6620(3)nm， b=1.7300(4)nm， c=0.5450(1)nm and Z=4. In the crystal lattice， the molecules create a two-dimensional network structure through hydrogen bonds. The C-H…O intermolecular hydrogen bonds connect the title complex to form layer super-molecular plane structure perpendicular to the axis b， with the layers stacked by the Van der Waals interaction. CCDC： 195309.     

[Ni(dien)2]2[Mn(NCS)6]·H2O的合成、晶体结构

The crystal of [Ni(dien)₂]₂[Mn(NCS)₆]·H₂O was synthesized and the structure of its single crystal was determined by X-ray diffraction. The crystal is monoclinic system, space group P2₁/c with a=16.544(3),b=15.137(2), c=17.334(3)?, β=99.90(1)°, V=4276.3(12)?³, Z=4, D_c=1.479g·cm^-3, M_r=951.55, F(000)=1998, μ=1.489mm^-1, R=0.0399, R_w=0.0958. IR was also determined.     

配合物[Cu(PTA)(phen)2]·(PTA)·(H2O)4的合成、晶体结构及电化学性质

The title complex has been synthesized by using terephthalic acid (PTA), 1,10-phenanthroline (phen) and copper monohydrate. It crystallizes in monoclinic space group C2/c with a=2.959 0(2) nm, b=1.466 4(10) nm, c=1.764 3(12) nm, β=105.593(11)°, V=7.372(9) nm³, Dc=1.489 g·cm^-3, Z=8, F(000)=3 416, R₁=0.043 6, wR₂= 0.151 9. The crystal structure shows that the copper atom is coordinated with four nitrogen atoms from two phens and one oxygen atom from one terephthalic acid, forming a distorted square-pyramid coordination geometry. The cyclic voltametric behavior of the complex is also reported. CCDC: 277047.     

混合配体配合物[Cd2(phen)4(bmal)2]·3H2O的合成与晶体结构研究

A novel binucleus mixed-ligand[Cd₂(phen)₄(bmal)₂]·3H₂O (phen=phenanthroline; bmal=benzylmalonic acid radical) has been synthesized by the reaction of phen and bmal with cadmium(Ⅱ) salt. X-ray crystal structure analysis was carried out to determine the crystal structure of the title complex. The crystal of the title complex belongs to monoclinic system with space group P2₁/c, a=1.119 1(8) nm, b=2.480 5(17) nm, c=1.063 4(8) nm, β=142.042(12)°, Z=4, V=2.887(3) nm³, D_c=1.613 g·cm^-3, R₁=0.046 2, wR₂=0.115 6, F(000)=1 424. One carboxyl of bmal is coordinated to Cd(1) with monodentate form, the others are coordinated to Cd(2) with bidentate form. The complexes form a 1-D chain structure bridged by hydrogen bonds that formed by uncoordinated water and oxygen atom of carboxyl group in bmal, the 2-D network structure was formed by π-π interaction of neighbouring phen. CCDC: 257080.     

双链镍配位聚合物{[Ni(4，4′-bipy)(3，5-DMBA)2(CH3OH)2]·[Ni(4，4′-bipy)(3，5-DMBA)2(H2O)2]}n的水热合成、晶体结构及其热稳定性

配位聚合物由于其在分子识别、催化、光电性质和磁性等方面表现出的独特性能,近年来已引起人们的极大关注[1-3].     

2D氢键网络镍配合物{[Ni(4，4′-bipy)(H2O)4]·(α-furacrylic acid)2·(H2O)}n的水热合成、晶体结构及电化学性质

A complex [Ni(α-furacrylic acid)₂(4，4′-bipy)(H₂O)₅]_n with α-furacrylic acid， 4，4′-bipy and Nickel perchl-orate has been synthesized by means of hydrothermal way and characterized. Crystal data for this complex: monoclinic， space group P2₁/c， a=1.122 2(2) nm， b=1.084 1(2) nm， c=1.081 6(2) nm， β=98.37(3)°， V=1.301 8(5) nm³， D_c=1.524 g·cm^-3， Z=2， μ(Mo Kα)=0.813 mm^-1， F(000)=624， S=1.073， R₁=0.041 2， wR₂=0.093 4. The crystal structure shows that the Nickel(Ⅱ) ion is coordinated with two nitrogen atoms of two 4，4′-bipy molecules and four oxygen atoms from four water molecules， respectively， giving a distorted octahedral coordination geometry. Adjacent Nickel(Ⅱ) ion are bridged by 4，4′-bipy groups and the adjacent Ni(Ⅱ)…Ni(Ⅱ) distance is 1.122 2 nm. The Nickel(Ⅱ) ion isn′t coordinated with α-furacrylic acid .The complex molecules form 2D structure through hydrogen bonds. The cyclic voltametric behavior of the complex was also investigated. CCDC: 658849.     

桥联双核配合物[(DPC)2Co2(H2O)5]·2H2O的合成与晶体结构

The new complex formulated [(DPC)₂Co₂(H₂O)₅]·2H₂O (HDPC^- is pyridine-2,6-dicarboxylate) has been synthesized and the crystal structure was determined by X-ray diffraction. The crystal structure of the complex belongs to monoclinic system with space group P2₁/c, a=0.83850(10) nm, b=2.7386(4) nm, c=0.9610(2) nm, β=98.280 (10) °, V=2.1838(6) nm³, Z=4, D_c=1.746 g·cm^-3, μ=1.597 mm^-1. In the crystal the two Co²⁺ are in distorted octahedrons. The part of [Co(DPC)₂] possess an approximate D_2d symmetry, while the part of [OCo₍₂₎(OH₂)₅] has an approximate C₂ symmetry.     

配合物[Co(Hdhpmy)(H2O)3]·3H2O的合成、晶体结构和荧光性质

用溶液法合成了钴的配合物[Co(Hdhpmy)(H₂O)₃]·3H₂O(H₃dhpmy=4,6-二羟基嘧啶-2-硫醇乙酸),对它进行了元素分析、红外光谱、荧光等表征,并用X-射线单晶衍射测定了配合物的单晶结构。标题配位聚合物晶体属正交晶系,Pca2₁空间群。弱的π-π相互作用将单分子连接成一维链状结构,而氢键使配合物形成三维网状结构。     

一维异核配合物[KNd(bta)2(H2O)6]·H2O的水热合成，晶体结构和荧光性质

以双四唑胺(H₂bta)、NdCl₃·6H₂O、KOH为原料,用水热法合成了1个一维异核的Nd³⁺配合物[KNd(bta)₂(H₂O)₆]·H₂O。通过X-射线单晶衍射、元素分析、红外光谱对该配合物进行了结构表征。该化合物属于单斜晶系,P2₁/m空间群。每个Nd³⁺与2个来自bta^2-离子的4个氮原子和5个水分子形成了1个盖帽的四方双锥,通过bta^2-和水分子桥联配体把Nd³⁺和K⁺连接成一维链状结构,链与链之间通过O-H…N和N-H…O氢键作用形成三维超分子结构。紫外吸收光谱和荧光光谱表征结果显示该配合物的水溶液在292和412 nm表现出双四唑胺的特征吸收峰和荧光发射特征峰。     

一维链状镍配位聚合物{[Ni(4，4′-bipy)(2，4，6-TMBA)2(H2O)2]·(CH3OH)}n的合成、晶体结构及电化学性质

One dimensional chain nickel(Ⅱ) coordination polymer has been synthesized with 2，4，6-trimethylbenz-oic acid， 4，4′-bipyridine and nickel perchlorate anhydrous， and characterized in the solvent mixture of water and methyl-alcohol. Crystal data for this complex: monoclinic， space group C2/c， a=2.154 7(7) nm， b=1.131 9(2) nm， c=1.655 7(8) nm， β=129.66(3)°， V=3.108 7(19) nm³， D_c=1.370 g·cm^-3， Z=4， F(000)=1 360， final GooF=1.042， R₁=0.034 4， wR₂=0.078 7. The crystal structure shows that the nickel ion is coordinated with two nitrogen atoms of two 4，4′-bipyridine molecules and four oxygen atoms from two 2，4，6-trimethylbenzoic acid molecules and two water molecules， respectively， forming a distorted octahedral coordination geometry. The cyclic voltametric behavior of the complex is also reported. CCDC: 649415.     

三维羧基氧桥联双核铜配合物[Cu2(nta)(Phen)3]NO3·6H2O的合成、表征与晶体结构

由H₃nta(H₃nta=nitriloriacetic acid)、Phen(Phen=1,10-phenanthroline)与Cu²⁺离子反应,合成标题配合物[Cu₂(nta)(Phen)₃]NO₃·6H₂O。该配合物的晶体属单斜晶系,空间群为P2₁/c。在配合物中,2个中心铜原子分别与配位原子构成变形八面体和变形三角双锥结构。晶体中结构单元通过分子间氢键和π-π堆积,形成了三维网络结构。TG分析结果表明标题配合物在194 ℃以下是稳定的。     

过渡金属-碱土金属铜钙四核配合物Cu2Ca2L2(H2O)6·2H2O的合成和晶体结构

The transition metal and alkaline earth metal tetranuclear complex Cu₂Ca₂L₂(H₂O)₆·2H₂O where H₄L represents the Schiff base N-3-carboxylsalicylideneglycylglycine was prepared and its crystal structure was determined by the single-crystal X-ray diffraction method at room temperature. It crystallizes in the monoclinic system, space group C2/c. The lattice parameters are a=2.128 2(2) nm, b=1.231 73(14) nm, c=1.32342(15) nm, β=93.619(2)°, M_r=939.81, D_c=1.803Mg·m^-3, F(000)=1 928, Z=4 with R₁=0.046 6. Each copper atom is coordinated by two nitrogen atoms, one carboxylate oxygen atom and one phenolic oxygen atom, in a square-planner manner. And each calcium atom is coordinated by three water oxygen atoms, three carboxylate oxygen atoms and one phenolic oxygen atom in a distorted pentagonal bipyramid. Two pentagonal bipyramids are connected by two carboxyl groups. CCDC: 239969.     

[Ni(phen)2(3,5-DMBA)](m-MBA)2(H2O)2配合物的合成、晶体结构及电化学分析

The title complex of nickel (II) with 3,5-dimethylbenzoic acid, m-methylbenzoic acid and 1,10- phenanthroline was synthesized and characterized. Crystal data for this complex: triclinic, space group P1, a=1.198 5(2) nm, b=1.315 3(2) nm, c=1.531 8(3) nm, α=92.602(3)°, β=103.292(3)°, γ=114.849(3)°, V=2.104 7(6) nm³, D_c=1.361 g·cm^-3, Z=2, F(000)=902, final GooF=1.071, R₁=0.067 2, wR₂=0.155 5. The crystal structure shows that the nickel ion is coordinated with four nitrogen atoms of two 1,10-phenanthroline molecules and two oxygen atoms of one 3,5-dimethyl benzoic acid molecule, forming a distorted octahedral coordination geometry. The cyclic voltametric behavior of the complex was also investigated. CCDC: 286966.     

配合物[Cu2(m-MBA)4(2，2′-bipy)2(H2O)]·H2O的水热合成、晶体结构及电化学分析

A copper(Ⅱ) complex [Cu₂(m-MBA)₄(2，2′-bipy)₂(H₂O)]·H₂O with m-methylbenzoic acid (m-MBA), 2,2′-bipyridine (2,2′-bipy) and water molecule has been synthesized by means of hydrothermal way and characterized. Crystal data for this complex: monoclinic, space group C2/c, a=2.591 8(5) nm, b=1.414 2(3) nm, c=1.790 8(4) nm, β=131.80(3)°, V=4.893 3(17) nm³, D_c=1.379 g·cm^-3, Z=4, F(000)=2 104 , Final GooF=1.034, R₁=0.065 6, wR₂=0.197 6. The crystal structure shows that two neighboring copper(Ⅱ) ions are linked together by two bridging-chelating m-methylbenzoic acid groups, one bridging water molecule, forming a cage structure and the Cu(Ⅱ)-Cu(Ⅱ) bond distance is 0.366 7 nm. Each copper(Ⅱ) ion is coordinated with two nitrogen atoms of one 2,2′-bipyridine molecule and four oxygen atoms from three m-methylbenzoic acid molecules and one water molecule, repectiveley, forming a distorted octahedral coordination geometry. The cyclic voltammetric behavior of the Complex was also investigated. CCDC: 648619.     

配合物[Mn(phendione)(PDC)(H2O)2]·2H2O的合成与晶体结构

The title compound [Mn(phendione)(PDC)(H₂O)₂]·2H₂O (H₂PDC=pyridine-2，6-dicarboxylic acid) has been prepared in aqueous solution and characterized by single X-ray diffraction structure determination， elemental analysis， IR spectroscopy， and thermal analyses. The compound crystallizes in Monoclinic system， space group C2/c， a=1.017 51(11) nm， b=1.483 25(11) nm， c=1.461 21(13) nm， β=109.86(10)°， V=2.074 1(3) nm³， Z=4， F(000)=1 028， μ=0.701 mm^-1， D_c=1.609 g·cm^-3， R₁=0.028 9， wR₂=0.078 8 [I>2σ(I)]. Crystal structure reveals that complex consists of one-dimensional chain framework bridged by hydrogen bonds that formed by uncoordinated water and oxygen atom of carboxyl group in PDC^2-. Furthermore， the complexes form a three-dimensional super-molecular structure through hydrogen bonds. CCDC: 648570.     

新型配合物[Zn(dib)(H2O)3]SO4·2H2O的水热合成、晶体结构和荧光性质

由水热法合成了锌化合物[Zn(dib)(H2O)3]SO4.2H2O(1)(dib=1,4-二咪唑基苯),并对其进行了元素分析、IR及X-射线衍射法表征。晶体结构表明:配合物1属于正交晶系,Fddd空间群。配合物1是由桥联配体1,4-二咪唑基苯连接成一维链状结构,该一维链被氢键拓展成三维超分子结构。配合物1的荧光测试研究表明它具有蓝色荧光。