A three-dimensional mixed-valence CuII/CuIcoordination polymer constructed from biphenyl-3,4′,5-tricarboxylate and 1,4-bis(1H-imidazol-1-yl)benzene ligands

2016 ◽  
Vol 72 (4) ◽  
pp. 358-362
Author(s):  
Ya-Hui Liu ◽  
Li-Ping Lu ◽  
Miao-Li Zhu ◽  
Feng Su

Coordination polymers (CPs) built by coordination bonds between metal ions/clusters and multidentate organic ligands exhibit fascinating structural topologies and potential applications as functional solid materials. The title coordination polymer, poly[diaquabis(μ4-biphenyl-3,4′,5-tricarboxylato-κ4O3:O3′:O4′:O5)tris[μ2-1,4-bis(1H-imidazol-1-yl)benzene-κ2N3:N3′]dicopper(II)dicopper(I)], [CuII2CuI2(C15H7O6)2(C12H10N4)3(H2O)2]n, was crystallized from a mixture of biphenyl-3,4′,5-tricarboxylic acid (H3bpt), 1,4-bis(1H-imidazol-1-yl)benzene (1,4-bib) and copper(II) chloride in a water–CH3CN mixture under solvothermal reaction conditions. The asymmetric unit consists of two crystallographically independent Cu atoms, one of which is CuII, while the other has been reduced to the CuIion. The CuIIcentre is pentacoordinated by three O atoms from three bpt3−ligands, one N atom from a 1,4-bib ligand and one O atom from a coordinated water molecule, and the coordination geometry can be described as distorted trigonal bipyramidal. The CuIatom exhibits a T-shaped geometry (CuN2O) coordinated by one O atom from a bpt3−ligand and two N atoms from two 1,4-bib ligands. The CuIIatoms are extended by bpt3−and 1,4-bib linkers to generate a two-dimensional network, while the CuIatoms are linked by 1,4-bib ligands, forming one-dimensional chains along the [20\overline{1}] direction. In addition, the completely deprotonated μ4-η1:η1:η1:η1bpt3−ligands bridge one CuIand three CuIIcations along thea(or [100]) direction to form a three-dimensional framework with a (103)2(10)2(42.6.102.12)2(42.6.82.10)2(8) topologyviaa 2,2,3,4,4-connected net. An investigation of the magnetic properties indicated a very weak ferromagnetic behaviour.

Author(s):  
Lei-Lei Liu ◽  
Feng Zhao

The solvothermal reaction of Zn(OAc)2·2H2O with 3,3′-(diazenediyl)dibenzoic acid (H2ADB) in H2O at 393 K afforded the title complex, [Zn(C14H8N2O4)(H2O)]n. The asymmetric unit contains half a ZnIIcation, half an ADB ligand and half a water molecule. Each ZnIIcentre lies on a crystallographic twofold rotation axis and is five-coordinated by four O atoms of bridging carboxylate groups from four ADB ligands and one O atom from a water molecule, forming a distorted trigonal–bipyramidal coordination geometry. The [Zn(H2O)] subunits are bridged by carboxylate groups to give one-dimensional [Zn(μ-COO)4(H2O)]nchains. The chains are linked by ADB ligands into two-dimensional sheets, and these sheets are further connected to neighbouring sheetsviahydrogen bonds (OW—HW...O), forming a three-dimensional hydrogen-bond-stabilized structure with an unprecedented 374175262topology.


2013 ◽  
Vol 69 (9) ◽  
pp. 1030-1033 ◽  
Author(s):  
Su-Wen Sun ◽  
Lei Jin

The structure of the title one-dimensionalABX3-type organic–inorganic hybrid complex, {(C13H22N)[CdCl3]}n, consists of benzyltriethylammonium cations and one-dimensional anionic {[CdCl3]−}nchains, in which the CdIIcentres are in an unusual two-layer five-coordinated arrangement. The CdIIatom is pentacoordinated by four bridging and one terminal chloride ligand, forming a slightly distorted trigonal bipyramidal ClCd(μ-Cl)4arrangement. The trigonal bipyramid is linked by two opposite shared faces, giving rise to a zigzag linear anionic {[CdCl3]−}nchain. The benzyltriethylammonium cations are located in the inter-space of the inorganic network. There are C—H...Cl hydrogen bonds present and these play a crucial role in linking the organic cations and inorganic layers, and also help assemble the components into a three-dimensional network.


Author(s):  
Yongtae Kim ◽  
Sung Kwon Kang

The cation of the complex title salt, [Zn(C13H11N3)2(H2O)](NO3)2, lies about a twofold rotation axis, which passes through the ZnIIatom and the O atom of the aqua ligand. The ZnIIatom adopts a distorted trigonal–bipyramidal geometry defined by two N atoms in axial positions [angle = 166.24 (7)°], and two N and one O atom in the equatorial plane [range of angles: 115.17 (7)–122.42 (3)°]. The dihedral angle between the imidazole and aniline rings is 23.86 (5)°. In the crystal, N—H...O and O—H...O hydrogen bonds link the components into a three-dimensional network.


2009 ◽  
Vol 65 (6) ◽  
pp. m618-m618 ◽  
Author(s):  
Jian Yu

The CoIIion in the title complex, [Co(SO4)(C13H8N4)(H2O)2]n, has a slightly distorted octahedral coordination environment formed by two O atoms from two symmetry-related bridging sulfate ligands, two N atoms from a bis-chelating 1H-imidazo[4,5-f][1,10]phenanthroline (IPL) ligand and two O atoms from coordinated water molecules. The bridging sulfate ligands connect CoIIions to form a one-dimensional chain along theb-axis direction. In the crystal structure, intermolecular O—H...O, O—H...N and N—H...O hydrogen bonds link the chains into a three-dimensional network.


2012 ◽  
Vol 68 (8) ◽  
pp. m1042-m1043
Author(s):  
Zhan-Wang Shi ◽  
Yan Qin ◽  
Yan-Xia Lin ◽  
Wei Wu ◽  
Peng Liang

In the title compound, [CoCl(C10H7N3S)2]Cl·2H2O, the CoIIatom is five-coordinated by four N atoms from two chelating 2-(1,3-thiazol-4-yl)-1H-benzimidazole ligands and one Cl atom in a distorted trigonal–bipyramidal geometry. In the crystal, N—H...O and O—H...Cl hydrogen bonds and π–π interactions between the thiazole, imidazole and benzene rings [centroid-to-centroid distances 3.546 (2), 3.683 (2) and 3.714 (2) Å] link the complex cations, chloride anions and uncoordinating water molecules into a three-dimensional network.


Author(s):  
Hua Wu ◽  
Xiao-Li Lü ◽  
Bo Lü ◽  
Chang-Xun Dong ◽  
Mei-Sheng Wu

The three-dimensional coordination polymer poly[[bis(μ3-2-aminoacetato)di-μ-aqua-μ3-(naphthalene-1,5-disulfonato)-hexasilver(I)] dihydrate], {[Ag6(C10H6O6S2)(C2H4NO2)4(H2O)2]·2H2O}n, based on mixed naphthalene-1,5-disulfonate (L1) and 2-aminoacetate (L2) ligands, contains two AgIcentres (Ag1 and Ag4) in general positions, and another two (Ag2 and Ag3) on inversion centres. Ag1 is five-coordinated by three O atoms from oneL1 anion, oneL2 anion and one water molecule, one N atom from oneL2 anion and one AgIcation in a distorted trigonal–bipyramidal coordination geometry. Ag2 is surrounded by four O atoms from twoL2 anions and two water molecules, and two AgIcations in a slightly octahedral coordination geometry. Ag3 is four-coordinated by two O atoms from twoL2 anions and two AgIcations in a slightly distorted square geometry, while Ag4 is also four-coordinated by two O atoms from oneL1 and oneL2 ligand, one N atom from anotherL2 anion, and one AgIcation, exhibiting a distorted tetrahedral coordination geometry. In the crystal structure, there are two one-dimensional chains nearly perpendicular to one another (interchain angle = 87.0°). The chains are connected by water molecules to give a two-dimensional layer, and the layers are further bridged byL1 anions to generate a novel three-dimensional framework. Moreover, hydrogen-bonding interactions consolidate the network.


2014 ◽  
Vol 70 (5) ◽  
pp. 522-527
Author(s):  
Xiang-Wen Wu ◽  
Dong Zhang ◽  
Jian-Ping Ma

Two different one-dimensional supramolecular chains with CoII cations have been synthesized based on the semi-rigid ligand 2-[1-(pyridin-4-ylmethyl)-1H-benzimidazol-2-yl]quinoline (L), obtained by condensation of 2-(1H-benzimidazol-2-yl)quinoline and 4-(chloromethyl)pyridine hydrochloride. Starting from different CoII salts, two new compounds have been obtained, viz. catena-poly[[[dinitratocobalt(II)]-μ-2-[1-(pyridin-4-ylmethyl)-1H-benzimidazol-2-yl]quinoline] dichloromethane monosolvate acetonitrile monosolvate], {[Co(NO3)2(C22H16N4)]·CH2Cl2·CH3CN} n , (I) and catena-poly[[[dichloridocobalt(II)]-μ-2-[1-(pyridin-4-ylmethyl)-1H-benzimidazol-2-yl]quinoline] methanol disolvate], {[CoCl2(C22H16N4)]·2CH3OH} n , (II). In (I), the CoII centres lie in a distorted octahedral [CoN3O3] coordination environment. {Co(NO3)2 L} n units form one-dimensional helical chains, where the L ligand has different directions of twist. The helical chains stack together via interchain π–π interactions to form a two-dimensional sheet, and another type of π–π interaction further connects neighbouring sheets into a three-dimensional framework with hexagonal channels, in which the acetonitrile molecules and disordered dichloromethane molecules are located. In (II), the CoII centres lie in a distorted trigonal–bipyramidal [CoCl2N3] coordination environment. {CoCl2 L} n units form one-dimensional chains. The chains interact via C—H...π and C—H...Cl interactions. The result is that two-dimensional sheets are generated, which are further linked into a three-dimensional framework via interlayer C—H...Cl interactions. When viewed down the crystallographic b axis, the methanol solvent molecules are located in an orderly manner in wave-like channels.


IUCrData ◽  
2018 ◽  
Vol 3 (11) ◽  
Author(s):  
Felipe A. Vinocour ◽  
Andrea Soto-Navarro ◽  
Leslie W. Pineda

The crystal structure of the title compound, [CoLi(C11H21N2O)Cl2(C4H8O)2], has monoclinic symmetry and comprises one heterometallic binuclear complex molecule in the asymmetric unit. The Co2+ cation is bonded to one oxygen and two nitrogen atoms of a β-ketoiminato ligand and to two chlorido ligands, leading to a distorted trigonal-bipyramidal coordination sphere. One of the Cl ligands and the oxygen atom of the β-ketoiminato ligand are bridging to a Li+ cation, which is further bonded to oxygen atoms of two THF molecules. The resulting coordination sphere is distorted tetrahedral. In the crystal, weak intermolecular C—H...Cl hydrogen bonds are identified that link the complex molecules into a three-dimensional network structure.


2014 ◽  
Vol 70 (5) ◽  
pp. 488-492
Author(s):  
Xiao-Hua Chen ◽  
Hua Huang ◽  
Ming-Xing Yang ◽  
Li-Juan Chen ◽  
Shen Lin

In poly[aqua(μ3-benzene-1,4-dicarboxylato-κ5 O 1,O 1′:O 1:O 4,O 4′)[2-(pyridin-3-yl-κN)-1H-benzimidazole]cadmium(II)], [Cd(C8H4O4)(C12H9N3)(H2O)] n , (I), each CdII ion is seven-coordinated by the pyridine N atom from a 2-(pyridin-3-yl)benzimidazole (3-PyBIm) ligand, five O atoms from three benzene-1,4-dicarboxylate (1,4-bdc) ligands and one O atom from a coordinated water molecule. The complex forms an extended two-dimensional carboxylate layer structure, which is further extended into a three-dimensional network by hydrogen-bonding interactions. In catena-poly[[diaquabis[2-(pyridin-3-yl-κN)-1H-benzimidazole]cobalt(II)]-μ2-benzene-1,4-dicarboxylato-κ2 O 1:O 4], [Co(C8H4O4)(C12H9N3)2(H2O)2] n , (II), each CoII ion is six-coordinated by two pyridine N atoms from two 3-PyBIm ligands, two O atoms from two 1,4-bdc ligands and two O atoms from two coordinated water molecules. The complex forms a one-dimensional chain-like coordination polymer and is further assembled by hydrogen-bonding interactions to form a three-dimensional network.


2016 ◽  
Vol 72 (11) ◽  
pp. 1577-1580
Author(s):  
Fwu Ming Shen ◽  
Shie Fu Lush

The title compound, [Cu(NO3)(C12H8N2)2]NO3·C7H6O5·H2O, consists of a mononuclear complex cation with the central CuIIatom in a distorted trigonal–bipyramidal coordination sphere. Two N atoms of two 1,10-phenanthroline ligands occupy the axial sites, and the remaining N atoms of the two ligands, as well as one nitrate O atom the equatorial positions. One molecule each of gallic acid and water are present in the crystal as solvent molecules that do not coordinate to the CuIIcation, just as the nitrate counter-anion. In the crystal, intermolecular O—H...O hydrogen bonds, as well as C—H...O interactions and π–π ring stacking between benzene and pyridine rings [centroid-to-centroid distances = 3.471 (2), 3.559 (2) and 3.790 (2) Å], link the molecules into a three-dimensional network structure.


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