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1.
在水热条件下,合成了2个配位聚合物{[Mn(Hbidc)(2,2''-bpy)(H2O)2]·1.5H2O}n(1)和{[Cd(Hbidc)(phen)][Cd(phen)2Cl2]}n(2)(H3bidc=苯并咪唑-5,6-二羧酸,2,2''-bpy=2,2''-联吡啶,phen=菲咯啉),并通过X射线单晶衍射、红外、元素分析、X射线粉末衍射和热重对配合物结构进行了表征。配合物1是一维无限zig-zag链结构,可以通过O-H…O和N-H…O氢键的相互作用形成三维超分子结构。配合物2也是一维无限链结构。此外,测试了配合物1和2的固体紫外吸收光谱和研究了配合物2的固体荧光性能。 相似文献
2.
合成了2个配位聚合物{[Cd(btaa)(phen)(CH3COO)]·H2O}n(1)和{[Ag2(btaa)(4,4-bpy)2](NO3)·2H2O}n(2)(Hbtaa=1H-苯并三氮唑-1-乙酸,phen=1,10-邻菲啰啉,4,4-bpy=4,4-联吡啶),采用单晶X-射线、红外光谱、元素分析和热重分析对配合物进行了表征。配合物1中的镉离子通过1H-苯并三氮唑-1-乙酸根桥连成一位螺旋链状结构。在配合物2中,银离子被4,4-联吡啶连接成一维链状结构,这些一维链通过1H-苯并三氮唑-1-乙酸根桥连以及Ag···Ag作用和π-π堆积连接成一维梯子状结构。此外,还研究了配合物1的荧光性质。 相似文献
3.
采用水热方法,选用4,4''-(吡啶-3,5-二基)二苯甲酸配体(H2pdba)与菲咯啉(phen)、2,2''-联吡啶(bipy)或2,2''-联咪唑(H2biim)分别与ZnCl2、NiCl2·6H2O和CoCl2·6H2O在160 ℃温度下反应,合成了2个二维层状配位聚合物{[Zn(μ3-pdba)(phen)]·H2O}n (1)和{[Ni(μ3-pdba)(bipy)]·3H2O}n (2),以及1个具有一维链结构的配位聚合物{[Co(μ3-pdba)(H2biim)(H2O)]·H2O}n (3),并对其结构和催化性质进行了研究。研究表明,在70 ℃条件下配合物1在Henry反应中显示出较好的催化活性。优化了反应参数,对反应底物范围也进行了研究。 相似文献
4.
采用水热方法,用醚氧桥联的三羧酸配体(H3dpna)和四羧酸配体(H4deta)为主配体,2,2''-联吡啶(2,2''-bipy)和菲咯啉(phen)为辅助配体,分别与CuCl2·H2O、ZnCl2和MnCl2·4H2O反应,合成了2个二维配位聚合物{[Cu3(μ4-dpna)2(2,2''-bipy)2]·4H2O}n(1)和{[Zn3(μ4-dpna)2(2,2''-bipy)2(H2O)2]·6H2O}n(2)以及2个一维配位聚合物{[M2(μ4-deta)(phen)2(H2O)]·3H2O}n(M=Mn(3),Zn(4)),并对其结构、荧光和光催化性质进行了研究。结构分析结果表明配合物1和2属于单斜晶系,P21/c和C2/c空间群。由于采用了不同的金属离子,配合物1和2呈现不同的二维层结构。配合物3和4为异质同心结构,均属于单斜晶系,P21/n空间群。配合物3和4都具有一维链结构。另外,研究了这些配合物的荧光和对有机染料亚甲基蓝的光催化降解性能,结果表明配合物2和4可以高效地降解亚甲基蓝。 相似文献
5.
将5-甲基-3-吡唑甲酸(H2MPCA)与Mn(Ⅱ)或Ni(Ⅱ)金属盐反应合成了2个新的配合物:[Mn(HMPCA)2(H2O)2](1)和[Ni(HMP-CA)2(2,2''-bpy)]·2H2O(2)(2,2''-bpy=2,2''-联吡啶)。在单核配合物1和2中,每个金属离子均为八面体配位构型,其中HMPCA-配体均采取的是N,O-螯合的配位模式。在配合物1中的分子间氢键N—H…O和O—H…O作用下,[Mn(HMPCA)2(H2O)2]配位单元堆积成含有1D纳米管道的3D超分子结构。在2中,[Ni(HMPCA)2(2,2''-bpy)]单元和结晶水分子之间在分子间氢键作用下,形成了1D链状结构,相邻的链之间通过分子间的π…π作用形成了3D超分子结构。还考察了配合物1和2的电化学性质和荧光性能。 相似文献
6.
采用水热合成的方法,在以5-(4-羟基吡啶基甲基)间苯二甲酸(H2L)作主配体、4,4''-联吡啶(4,4''-bpy)和1,2-二(4-吡啶基)乙烯(bpe)作辅配体的条件下,得到2种新颖的Zn(Ⅱ)配位聚合物{[Zn(L)(4,4''-bpy)0.5]·2H2O}n(1)和{[Zn(L)(bpe)0.5]·2H2O}n(2)。配合物通过单晶X射线衍射的方法进行了结构分析,并进一步通过红外光谱(IR)、元素分析、PXRD和热重分析(TG)的方法进行了表征。结构分析表明配合物1展现出的是一种三维三重互穿网络;聚合物2为二维双层结构,并进一步组合成了三重平行互穿的2D→3D的空间网络。此外,研究了配合物的荧光性质。 相似文献
7.
采用水热方法,用半刚性三羧酸配体(H3cpta)和菲咯啉(phen)或2,2''-联吡啶(2,2''-bipy)与CoCl2·6H2O反应,合成了一个一维链状配位聚合物[Co(μ2-Hcpta)(phen)(H2O)]n(1)和一个二维层状配位聚合物[Co3(μ5-cpta)2(2,2''-bipy)2]n(2),并对其结构和磁性质进行了研究。结构分析结果表明2个配合物均属于单斜晶系,P21/c空间群。配合物1具有一维链状结构,而且这些一维链状结构通过C-H…O氢键作用进一步形成了二维超分子网络。而配合物2具有由三核钴单元构筑的二维层状结构。研究表明,配合物1和2中相邻钴离子间存在反铁磁相互作用。 相似文献
8.
采用水热方法,用半刚性三羧酸配体(H3cpta)和菲咯啉(phen)或2,2''-联吡啶(2,2''-bipy)与CoCl2·6H2O反应,合成了一个一维链状配位聚合物[Co(μ2-Hcpta)(phen)(H2O)]n(1)和一个二维层状配位聚合物[Co3(μ5-cpta)2(2,2''-bipy)2]n(2),并对其结构和磁性质进行了研究。结构分析结果表明2个配合物均属于单斜晶系,P21/c空间群。配合物1具有一维链状结构,而且这些一维链状结构通过C-H…O氢键作用进一步形成了二维超分子网络。而配合物2具有由三核钴单元构筑的二维层状结构。研究表明,配合物1和2中相邻钴离子间存在反铁磁相互作用。 相似文献
9.
采用普通溶液法和水热法分别合成了2个金属-有机配位聚合物:{[Cu(Ts-5-AIPA)(phen)(H2O)]·H2O}n(1)和[Cd(Ts-5-AIPA)(phen)]n(2)(Ts-5-AIPA=N-对甲苯磺酰-5-氨基间苯二甲酸根,phen=菲咯啉),并用红外光谱、热重和X射线单晶衍射对配合物的结构进行了表征。结果表明:2个配合物均为单斜晶系,配合物1为P21/c空间群,配合物2为C2/c空间群;2个配合物均为一维链状结构,再通过氢键和π-π堆积作用形成三维超分子结构。另外,还研究了2个配位聚合物的荧光性质。 相似文献
10.
采用水热方法,用2种联苯四羧酸配体(2,4-H4bpta和3,5-H4bpta)和4,4''-联吡啶(4,4''-bipy)或2,2''-联吡啶(2,2''-bipy)分别与MnCl2·4H2O和CuCl2·H2O反应,合成了一个具有一维双螺旋链结构的配位聚合物[Mn(μ3-2,4-H2bpta)(4,4''-bipy)2]n(1)和一个二维层状配位聚合物{[Cu(μ4-3,5-bpta)0.5(2,2''-bipy)(H2O)]·H2O}n(2),并对其结构和磁性质进行了研究。结构分析结果表明2个配合物分别属于单斜晶系,P21/c和C2/c空间群。配合物1具有一维双螺旋链结构,而且这些一维链通过O-H…N氢键作用进一步形成了二维超分子网络。而配合物2具有二维层状结构。研究表明,配合物1中相邻锰离子间存在铁磁相互作用。 相似文献
11.
L. V. Voitenko I. D. Zhilyak V. A. Kopilevich 《Russian Journal of Applied Chemistry》2005,78(3):363-366
Synthesis of amorphous and crystalline double hydrated cobalt copper and nickel copper ammine diphosphates with a coordination structure is described.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 3, 2005, pp. 369–372.Original Russian Text Copyright © 2005 by Voitenko, Zhilyak, Kopilevich. 相似文献
12.
《Journal of Coordination Chemistry》2012,65(10):1606-1614
Three new compounds, [Cd(μ 3 -Hpdh)(μ2-Cl)] n (1), Mn(Hpdh)2(H2O)2 (2) and Zn(Hpdh)2 (H2O)2 (3) (H2pdh =?pyridine-2,3-dicarbo-2,3-hydrazide), have been synthesized and characterized by elemental analysis, IR spectra, TG and single-crystal X-ray diffraction. Under hydrothermal conditions, H2pdh is generated by an in situ acylation of H2pda (H2pda =?pyridine-2,3-dicarboxylic acid) with hydrazine hydrate. Complex 1 features a 2D layer structure constructed by a dinuclear Cd(II) building block. In complexes 2 and 3, hydrogen bonding interactions connect mononuclear structures into 3D supramolecular frameworks. 相似文献
13.
Shin-Ichi Nishikiori Toschitake Iwamoto 《Journal of inclusion phenomena and macrocyclic chemistry》1985,3(3):283-295
The crystal structure of ethylenediaminecadmium(II) tetracyanocadmate(II)-benzene(1/2),I, has been redetermined based on 1632 reflections collected anew for the crystal coated with epoxy resin, with a final conventionalR=0.038;I crystallizes in space groupP4222, witha=b=8.265(1) andc=15.512(3) Å, andZ=2. Ethylenediaminecadmium(II) tetracyanocadmate(II),II, is concluded to be identical with the residual metal complex host ofI, remaining after the liberation of the guest benzene molecules;II crystallizes from an aqueous solution containing bis- or tris-ethylenediaminecadmium(II) tetracyanocadmate(II) in space groupI41/acd, witha=b=14.366(1) andc=23.771(4) Å, andZ=16; refinement led to a conventionalR=0.043 for 1181 reflections. The bridging ethylenediamine ligand inI turns to a chelating one inII; dissociation and recombination should occur in the coordination sphere of the six-coordinate cadmium atom, whenII is derived fromI by the liberation of the guest molecules.
Supplementary Data relating to this article are deposited with the British Library as Supplementary Publication No. SUP 82018 (30 pages).Dedicated to Professor H. M. Powell. 相似文献
14.
Natalia V. Kuratieva Marina I. Naumova Dmitry Yu. Naumov 《Acta Crystallographica. Section C, Structural Chemistry》2002,58(9):i129-i131
The title compounds, hexaaquacobalt(II) bis(hypophosphite), [Co(H2O)6](H2PO2)2, and hexaaquacobalt(II)/nickel(II) bis(hypophosphite), [Co0.5Ni0.5(H2O)6](H2PO2)2, are shown to adopt the same structure as hexaaquamagnesium(II) bis(hypophosphite). The packing of the Co(Ni) and P atoms is the same as in the structure of CaF2. The CoII(NiII) atoms have a pseudo‐face‐centred cubic cell, with a = b~ 10.3 Å, and the P atoms occupy the tetrahedral cavities. The central metal cation has a slightly distorted octahedral coordination sphere. The geometry of the hypophosphite anion in the structure is very close to ideal, with point symmetry mm2. Each O atom of the hypophosphite anion is hydrogen bonded to three water molecules from different cation complexes, and each H atom of the hypophosphite anion is surrounded by three water molecules from further different cation complexes. 相似文献
15.
Magnetic, spectroscopic and superoxide dismutase activity of imidazolate bridged [(Salala)Cu-Im-Cu(Salala)]Na, [(Salala)Cu-Im-Zn(Salala)]Na and [(Salala)Cu-Im-Ni(Salala)]Na (Salala=Salicyledenealiniate, Im=Imdiazolate) are described. The epr and electronic spectra of related mononuclear complexes, viz., [(Salala)Cu-OH(2)] and [(Salala)Cu-ImH] also described. Appearance of a half-field signal in polycrystalline and decrease in mu(eff) per copper(II) ion indicate super exchange coupling between copper(II) ion in [(Salala)Cu-Im-Cu(Salala)]Na binuclear complex. A pH-dependent epr and UV-vis study of 50% aqueous DMSO solution of binuclear complexes suggest that the complexes are stable in narrow pH range. 相似文献
16.
Summary Complexes of the type M(AcLeu)2 · B2 (M = CoII, NiII or ZnII; B = H2O, py, 3-pic, 4-pic; AcLeu =N-acetyl-DL-leucinate ion) and M(AcLeu)2 B (M = CoII or ZnII and B = o-phen) were prepared and investigated by means of magnetic and spectroscopic measurements. The i.r. spectra of all the complexes are consistent with bidentate coordination of the amino acid to the metal ion. The room temperature solid state electronic spectra indicate that the symmetry of this species is closer toD
4h
and that MO6 and MO4N2 chromophores are present in the M(AcLeu)2 · 2 H2O and M(AcLeu)2Bn · x H2O (B = py, 3-pic, 4-pic, n=2 and x=0 for M = NiII; B = o-phen, n=1 and x=0 for M = CoII; B = py, 3-pic, 4-pic, n=1 and x=1 for M = CoII) complexes, respectively. By comparing the Dq values of the amino acid and those of other N-substituted amino acids previously studied, a spectrochemical series of the the cobalt(II) and nickel(II) complexes is proposed. The1 H n.m.r. spectra of the zinc(II) complexes confirm the proposed stereochemistry. 相似文献
17.
Metallatriazadiphosphorine complexes corresponding to [{N(PPh2NR)2}M(OAc)] and [{N(PPh2NR)2}2M], (R = Ph or SiMe3; M = Zn, Cd or Hg) have been synthesized under strictly anhydrous and inert conditions by the reaction of the acyclic bis-silylated phosphazene ligand, [HN(PPh2NSiMe3)2], or the bis-phenylated phosphazene ligand, [HN(PPh2NPh)2], with Zn, Cd and Hg acetate in 1:1 and 2:1 molar ratios. These complexes are highly soluble in common organic solvents, but unstable hydrolytically as well as thermally, even under reduced pressure. Molecular weight determinations in benzene indicated the monomeric nature of these complexes. Further, they have been characterized on the basis of elemental analysis and spectral studies: i.r. and n.m.r. (1H, 13C and 31P) that plausibly reveal a trigonal planar and tetrahedral geometry around the metal atom in the complexes. 相似文献
18.
Wen-Tao Yu Xin-Qiang Wang Dong Xu Meng-Kai Lu Duo-Rong Yuan 《Acta Crystallographica. Section C, Structural Chemistry》2001,57(2):145-146
In the title complex, [Hg(CH4N2S)4][Mn(NCS)4], the Hg and Mn atoms sit at special positions with symmetry and are tetrahedrally coordinated to four thiourea (TU) S and four thiocyanate (SCN) N atoms, respectively. The structure consists of discrete cationic and anionic [Hg(TU)4]2+ and [Mn(SCN)4]2− complexes, and weak NTU—H⃛SSCN hydrogen-bond bridges exist between these complexes. 相似文献
19.
Synthesis, spectral and solution studies on 2-ethyl imidazolate-bridged (2-EtIm) homo-binuclear copper(II)-copper(II) and
hetero-binuclear copper(II)-zinc(II) homologue are described. Magnetic moment values of homo-binuclear complexes indicate
that the imidazolate group can mediate antiferromagnetic interactions. Optical spectra of hetero-binuclear complex at varying
pH values suggest that the imidazolate-bridged complex is stable over the pH-range 7.15–10.0. 相似文献