A one-dimensional coordination polymer of 5-[(imidazol-1-yl)methyl]benzene-1,3-dicarboxylic acid with CuIIcations

2013 ◽  
Vol 69 (4) ◽  
pp. 344-347 ◽  
Author(s):  
Ranjan Patra ◽  
Israel Goldberg
Keyword(s):  
Coordination Polymer ◽  
Dicarboxylic Acid ◽  
Coordination Polymers ◽  
Organic Ligand ◽  
One Dimensional ◽  
Carboxylate Groups ◽  
Polymeric Chains ◽  
Polymeric Assemblies ◽  
Methyl Benzene ◽  
Metal Ligand

5-[(Imidazol-1-yl)methyl]benzene-1,3-dicarboxylic acid (H2L) was synthesized and the dimethylformamide- and dimethylacetamide-solvated structures of its adducts with CuII, namelycatena-poly[[copper(II)-bis[μ-3-carboxy-5-[(imidazol-1-yl)methyl]benzoato]] dimethylformamide disolvate], {[Cu(C12H9N2O4)2]·2C3H7NO}n, (I), andcatena-poly[[copper(II)-bis[μ-3-carboxy-5-[(imidazol-1-yl)methyl]benzoato]] dimethylacetamide disolvate], {[Cu(C12H9N2O4)2]·2C4H9NO}n, (II), the formation of which are associated with mono-deprotonation of H2L. The two structures are isomorphous and isometric. They consist of one-dimensional coordination polymers of the organic ligand with CuIIin a 2:1 ratio, [Cu(μ-HL)2]n, crystallizing as the dimethylformamide (DMF) or dimethylacetamide (DMA) disolvates. The CuIIcations are characterized by a coordination number of six, being located on centres of crystallographic inversion. In the polymeric chains, each CuIIcation is linked to four neighbouring HL−ligands, and the organic ligand is coordinatedviaCu—O and Cu—N bonds to two CuIIcations. In the corresponding crystal structures of (I) and (II), the coordination chains, aligned parallel to thecaxis, are further interlinked by strong hydrogen bonds between the noncoordinated carboxy groups in one array and the coordinated carboxylate groups of neighbouring chains. Molecules of DMF and DMA (disordered) are accommodated at the interface between adjacent polymeric assemblies. This report provides the first structural evidence for the formation of coordination polymers with H2Lviamultiple metal–ligand bonds through both carboxylate and imidazole groups.

Synthesis and Luminescent Properties of a Novel Nanoscale Eu(III)-Carboxylate Coordination Polymer

2013 ◽  
Vol 328 ◽  
pp. 715-718
Author(s):  
Cheng An Tao ◽  
Yan An Lv ◽  
Ling Qiang Meng ◽  
Hui Ping Liu ◽  
Zhi Hong Hu ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
Organic Ligand ◽  
Luminescent Properties ◽  
The Self ◽  
Side Group ◽  
Ordered Structures ◽  
Intense Luminescence ◽  
Metal Ligand ◽  
The Eu

To prepare nanoscale coordination polymers (NCPs) which can exhibit intense luminescence have attract an increasing interest. In this paper, we present the synthesis of a novel example of discus-like luminescent nanoscale Eu (III)-carboxylate coordination polymers. The organic ligand is a derivative of terephthalate (Na2L) with a big side group. The Eu (III)-L NCPs was synthesized through microemulsion method, and the morphology can alter along with the changing of metal: ligand ratios. XRD results reveal that the self-assembled disk-like NCPs exhibit long-range ordered structures. The luminescent measurements showed that the resultant NCPs not only exhibits typical fluorescence of Eu (III), but also can maintain the inherent fluorescence of the ligands.

A new two-dimensional manganese(II) coordination polymer based on thiophene-3,4-dicarboxylic acid

2014 ◽  
Vol 70 (7) ◽  
pp. 715-717
Author(s):  
Gui-Xia Wang ◽  
Li-Li Shang ◽  
Zhao-Hao Li ◽  
Bang-Tun Zhao
Keyword(s):  
Coordination Polymer ◽  
Dicarboxylic Acid ◽  
Ir Spectrum ◽  
Coordination Mode ◽  
The Novel ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
One Dimensional ◽  
Carboxylate Groups ◽  
Organic Linker

A novel manganese coordination polymer, poly[(μ5-thiophene-3,4-dicarboxylato)manganese(II)], [Mn(C6H2O4S)]n, was synthesized hydrothermally using 3,4-thiophenedicarboxylate (3,4-tdc2−) as the organic linker. The asymmetric unit of the complex contains an Mn2+cation and one half of a deprotonated 3,4-tdc2−anion, both residing on a twofold axis. Each Mn2+centre is six-coordinated by O atoms of bridging/chelating carboxylate groups from five 3,4-tdc2−anions, forming a slightly distorted octahedron. The Mn2+centres are bridged by 3,4-tdc2−anions to give an infinite two-dimensional layer which incorporates one-dimensional Mn–O gridlike chains, and in which the 3,4-tdc2−anion adopts a novel hexadentate chelating and μ5-bridging coordination mode. The fully deprotonated 3,4-tdc2−anion exhibits unexpected efficiency as a ligand towards the Mn2+centres, which it coordinates through all of its carboxylate O atoms to provide the novel coordination mode. The IR spectrum of the complex is also reported.

Three AgI, CuI and CdII coordination polymers based on the new asymmetrical ligand 2-{4-[(1H-imidazol-1-yl)methyl]phenyl}-5-(pyridin-4-yl)-1,3,4-oxadiazole: syntheses, characterization and emission properties

2019 ◽  
Vol 75 (12) ◽  
pp. 1690-1697
Author(s):  
Guo-Xia Jin ◽  
Tian-Chao You ◽  
Jian-Ping Ma
Keyword(s):  
Metal Ions ◽  
Coordination Polymers ◽  
Organic Ligand ◽  
One Dimensional ◽  
Coordination Sites ◽  
Metal Atoms ◽  
Polymeric Chains ◽  
Benzene Rings ◽  
Polymeric Structures ◽  
Methyl Phenyl

The new asymmetrical organic ligand 2-{4-[(1H-imidazol-1-yl)methyl]phenyl}-5-(pyridin-4-yl)-1,3,4-oxadiazole (L, C17H13N5O), containing pyridine and imidazole terminal groups, as well as potential oxdiazole coordination sites, was designed and synthesized. The coordination chemistry of L with soft AgI, CuI and CdII metal ions was investigated and three new coordination polymers (CPs), namely, catena-poly[[silver(I)-μ-2-{4-[(1H-imidazol-1-yl)methyl]phenyl}-5-(pyridin-4-yl)-1,3,4-oxadiazole] hexafluoridophosphate], {[Ag(L)]PF6} n , catena-poly[[copper(I)-di-μ-iodido-copper(I)-bis(μ-2-{4-[(1H-imidazol-1-yl)methyl]phenyl}-5-(pyridin-4-yl)-1,3,4-oxadiazole)] 1,4-dioxane monosolvate], {[Cu2I2(L)2]·C4H8O2} n , and catena-poly[[[dinitratocopper(II)]-bis(μ-2-{4-[(1H-imidazol-1-yl)methyl]phenyl}-5-(pyridin-4-yl)-1,3,4-oxadiazole)]–methanol–water (1/1/0.65)], {[Cd(L)2(NO3)2]·2CH4O·0.65H2O} n , were obtained. The experimental results show that ligand L coordinates easily with linear AgI, tetrahedral CuI and octahedral CdII metal atoms to form one-dimensional polymeric structures. The intermediate oxadiazole ring does not participate in the coordination interactions with the metal ions. In all three CPs, weak π–π interactions between the nearly coplanar pyridine, oxadiazole and benzene rings play an important role in the packing of the polymeric chains.

A helical zinc(II) coordination polymer assembled from 1,3-bis[(pyridin-3-yl)methoxy]benzene and benzene-1,4-dicarboxylic acid

2014 ◽  
Vol 70 (12) ◽  
pp. 1178-1180 ◽  
Author(s):  
Cai-Xia Yu ◽  
Feng-Ji Ma ◽  
Lei-Lei Liu ◽  
Cong Liu
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Polymer ◽  
Water Molecule ◽  
Dicarboxylic Acid ◽  
Two Dimensional ◽  
One Dimensional ◽  
Hydrogen Bonding Interactions ◽  
Carboxylate Groups ◽  
Corrugated Sheets

Incatena-poly[[aqua[1,3-bis(pyridine-3-ylmethoxy)benzene-κN]zinc(II)]-μ2-benzene-1,4-dicarboxylato-κ2O1:O4], [Zn(C8H4O4)(C18H16N2O2)(H2O)]n, each ZnIIcentre is tetrahedrally coordinated by two O atoms of bridging carboxylate groups from two benzene-1,4-dicarboxylate anions (denotedL2−), one O atom from a water molecule and one N atom from a 1,3-bis[(pyridin-3-yl)methoxy]benzene ligand (denoted bpmb). (Aqua)O—H...N hydrogen-bonding interactions induce the formation of one-dimensional helical [Zn(L)(bpmb)(H2O)]nchains which are interlinked through (aqua)O—H...O hydrogen-bonding interactions, producing two-dimensional corrugated sheets.

catena-Poly[[silver(I)-μ-[9,10-bis(1H-benzimidazol-1-ylmethyl)anthracene]-κ2N3:N3′] bis(nitrato-κO)silver(I)]

2012 ◽  
Vol 68 (10) ◽  
pp. m281-m283 ◽  
Author(s):  
Jian-Long Du ◽  
Xiao-Long Zhu ◽  
Pei Li
Keyword(s):  
Coordination Polymer ◽  
Benzene Ring ◽  
Title Compound ◽  
Nitrate Anion ◽  
Supramolecular Framework ◽  
Asymmetric Unit ◽  
One Dimensional ◽  
Polymeric Chains ◽  
Nitrate Anions ◽  
Metal Ligand

Yellow needle-shaped crystals of the title compound, {[Ag(C30H22N4)][Ag(NO3)2]}n, were obtained by the reaction of AgNO3and 9,10-bis(benzimidazol-1-ylmethyl)anthracene (L) in a 2:1 ratio. The asymmetric unit consists of two AgIcations, one halfLligand and one nitrate anion. One AgIcation occupies a crystallographic inversion centre and links two N-atom donors of two distinctLligands to form an infinite one-dimensional coordination polymer. The second AgIcation lies on a crystallographic twofold axis and is coordinated by two O-atom donors of two nitrate anions to form an [Ag(NO3)2]−counter-ion. The polymeric chains are linked into a supramolecular frameworkviaweak Ag...O [3.124 (5) Å] and Ag...π (2.982 Å) interactions (π is the centroid of an outer anthracene benzene ring). The π interactions contain two short Ag...C contacts [2.727 (6) and 2.765 (6) Å], which can be considered to define Ag–η2-anthracene bonding interactions. In comparison with a previously reported binuclear AgIcomplex [Du, Hu, Zhang, Zeng & Bu (2008).CrystEngComm,10, 1866–1874], this new one-dimensional coordination polymer was obtained by changing the metal–ligand ratio during the synthesis.

scholarly journals Tuning 1-D Pb(II) Coordination Polymers by Flexible and Semirigid Dicarboxylates: Synthesis, Structure and Properties

2012 ◽  
Vol 67 (3) ◽  
pp. 185-191 ◽  
Author(s):  
Guo-Cheng Liu ◽  
Zhi-Chao Guo ◽  
Xiu-Li Wang ◽  
Yun Qu ◽  
Song Yang ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
Dicarboxylic Acids ◽  
X Ray Diffraction ◽  
Thermal Stabilities ◽  
One Dimensional ◽  
Carboxylate Groups ◽  
Supramolecular Networks ◽  
Hexanedioic Acid ◽  
Linear Coordination

Two new one-dimensional (1-D) Pb(II) coordination polymers, namely, [Pb(3-pdip)(L1)]·H2O (1) and [Pb(3-pdip)(L2)] (2) [L1H2 = 1,6-hexanedioic acid, L2H2 = homophthalic acid, 3-pdip = 2-(3-pyridyl)imidazo[4,5-f]1,10-phenanthroline] have been obtained from hydrothermal reactions of Pb(II) nitrate with the phenanthroline derivative and the two dicarboxylic acids. Single-crystal X-ray diffraction analysis reveals that compound 1 is a staircase-like double-chain coordination polymer constructed from binuclear [Pb2N4O8] subunits and pairs of [L1]2− anions. Compound 2 is a linear coordination polymer connected via two μ2-η2:η1 carboxylate groups from [L2]2− anions. Furthermore, adjacent chains of 1 and 2 are extended into 3-D supramolecular networks by hydrogen bonds and π-π stacking interactions. The organic carboxylic acids with different flexibility determine the structures of the coordination polymers. Moreover, the thermal stabilities and photoluminescence properties of compounds 1 and 2 were investigated.

A new twofold interpenetrated two-dimensional cadmium(II) coordination polymer constructed from 2,2′-(benzene-1,4-dicarboxamido)dipropionate

2018 ◽  
Vol 74 (11) ◽  
pp. 1434-1439
Author(s):  
Hong-Tao Zhang ◽  
Xiao-Long Wang
Keyword(s):  
Coordination Polymer ◽  
Coordination Polymers ◽  
Self Assembly ◽  
Fluorescence Emission ◽  
Functional Materials ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Carboxylate Groups ◽  
Potential Applications

In recent years, much initial interest and enthusiasm has focused on the self-assembly of coordination polymers due to the aesthetics of their crystalline architectures and their potential applications as new functional materials. As part of an exploration of chiral coordination polymers, a new twofold interpenetrated two-dimensional (2D) coordination polymer, namely, poly[[tetraaquabis[μ3-(2R,2′R)-2,2′-(benzene-1,4-dicarboxamido)dipropionato-κ5 O,O′:O′′,O′′′:O′′]dicadmium(II)] trihydrate], {[Cd2(C14H14N2O6)2(H2O)4]·3H2O} n , has been synthesized by the reaction of Cd(CH3COO)2·2H2O with the designed ligand (2R,2′R)-2,2′-(benzene-1,4-dicarboxamido)dipropionic acid (H2 L). The compound has been structurally characterized by elemental analysis, IR spectroscopy, powder X-ray diffraction and single-crystal X-ray diffraction analysis. In the crystal structure, each CdII cation binds to three carboxylate groups from two crystallographically independent L 2− dianions. Four carboxylate groups link two crystallographically independent cadmium cations into a 4,4-connected secondary building unit (SBU). The resulting SBUs are extended into a two-dimensional folding sheet via the terephthalamide moiety of the ligand as a spacer, which can be simplified as a (4,4)-connected 4,4L15 net with the point symbol (3.53.62)(32.52.62). In the lattice, two independent folding sheets interpenetrate each other to yield a double-sheet layer. The resulting 2D layers pack in parallel arrays through intermolecular hydrogen bonds and interlayer π–π interactions. The thermal stability and photoluminescence properties of the title compound have been investigated and it exhibits an enhanced fluorescence emission and a longer lifetime compared with free H2 L.

scholarly journals Synthesis and crystal structure of a 6-chloronicotinate salt of a one-dimensional cationic nickel(II) coordination polymer with 4,4′-bipyridine

2020 ◽  
Vol 76 (5) ◽  
pp. 599-604
Author(s):  
Nives Politeo ◽  
Mateja Pisačić ◽  
Marijana Đaković ◽  
Vesna Sokol ◽  
Boris-Marko Kukovec
Keyword(s):  
Molecular Structure ◽  
Coordination Polymer ◽  
Three Dimensional ◽  
Polymeric Chain ◽  
Water Molecules ◽  
Sulfate Heptahydrate ◽  
Synthesis And Crystal Structure ◽  
One Dimensional ◽  
Polymeric Chains ◽  
Hydrogen Bonded

A 6-chloronicotinate (6-Clnic) salt of a one-dimensional cationic nickel(II) coordination polymer with 4,4′-bipyridine (4,4′-bpy), namely, catena-poly[[[tetraaquanickel(II)]-μ-4,4′-bipyridine-κ2 N:N′] bis(6-chloronicotinate) tetrahydrate], {[Ni(C10H8N2)(H2O)4](C6H3ClNO2)2·4H2O} n or {[Ni(4,4′-bpy)(H2O)4](6-Clnic)2·4H2O} n , (1), was prepared by the reaction of nickel(II) sulfate heptahydrate, 6-chloronicotinic acid and 4,4′-bipyridine in a mixture of water and ethanol. The molecular structure of 1 comprises a one-dimensional polymeric {[Ni(4,4′-bpy)(H2O)4]2+} n cation, two 6-chloronicotinate anions and four water molecules of crystallization per repeating polymeric unit. The nickel(II) ion in the polymeric cation is octahedrally coordinated by four water molecule O atoms and by two 4,4′-bipyridine N atoms in the trans position. The 4,4′-bipyridine ligands act as bridges and, thus, connect the symmetry-related nickel(II) ions into an infinite one-dimensional polymeric chain extending along the b-axis direction. In the extended structure of 1, the polymeric chains of {[Ni(4,4′-bpy)(H2O)4]2+} n , the 6-chloronicotinate anions and the water molecules of crystallization are assembled into an infinite three-dimensional hydrogen-bonded network via strong O—H...O and O—H...N hydrogen bonds, leading to the formation of the representative hydrogen-bonded ring motifs: tetrameric R 2 4(8) and R 4 4(10) loops, a dimeric R 2 2(8) loop and a pentameric R 4 5(16) loop.

scholarly journals catena-Poly[[(dichloridozinc)-μ-4,4′-bis(1H-imidazol-1-yl)biphenyl-κ2N3:N3′] 0.25-hydrate]

2012 ◽  
Vol 68 (4) ◽  
pp. m406-m406
Author(s):  
Yong-Xia Ning ◽  
Wen Fan ◽  
Gang Xie
Keyword(s):  
Coordination Polymer ◽  
Water Molecule ◽  
Chloride Ions ◽  
Dihedral Angles ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Polymeric Chains ◽  
Benzene Rings ◽  
Title One ◽  
Biphenyl Ligands

In the title one-dimensional coordination polymer, {[ZnCl2(C18H14N4)]·0.25H2O}n, the ZnIIatom is coordinated by two chloride ions and two 4,4′-bis(1H-imidazol-1-yl)biphenyl ligands, generating a distorted tetrahedral ZnCl2N2geometry. The dihedral angle between the benzene rings of the ligand is 51.0 (1)° and the dihedral angles between the benzene rings and their attached imidazole rings are 18.7 (2) and 45.9 (1)°. The bridging ligand leads to [10-1] polymeric chains in the crystal and the disordered water molecule (occupancy 0.25) forms O—H...Cl hydrogen bonds.

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