Synthesis, crystal structures and magnetic characterisation of two 2p–3d metallic coordination polymers

2017 ◽  
Vol 41 (6) ◽  
pp. 365-369 ◽  
Author(s):  
Chongchong Xue ◽  
Jingwen Shi ◽  
Daopeng Zhang
Keyword(s):  
Magnetic Susceptibility ◽  
Coordination Polymers ◽  
Supramolecular Structure ◽  
Three Dimensional ◽  
Building Blocks ◽  
Chain Structure ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
X Ray ◽  
Dimensional Network

The coordination polymers {Mg[Fe(L)(CN)5]}n·0.5nH2O and {MgCu2(CH3COO)6}n [L = bis( N-imidazolyl)methane] have been synthesised. X-ray diffraction revealed that {Mg[Fe(L)(CN)5]}n·0.5nH2O has a one-dimensional neutral chain structure consisting of alternating [Mg(L)2(H2O)2)]2+ species and [Fe(L)(CN)5]2– building blocks, which can be further linked into a three-dimensional supramolecular structure by inter-chain p–p interactions. {MgCu2(CH3COO)6}n has a three-dimensional network with the [MgCu2(CH3COO)6] unit as neutral core extended by Mg–O bonds. Magnetic susceptibility studies on {MgCu2(CH3COO)6}n revealed antiferromagnetic interactions between adjacent Cu(II) ions.

Effect of pH on the construction of CdII coordination polymers involving the 1,1′-[1,4-phenylenebis(methylene)]bis(3,5-dicarboxylatopyridinium) ligand

2019 ◽  
Vol 75 (8) ◽  
pp. 1142-1149 ◽  
Author(s):  
Zhi-Chao Shao ◽  
Xiang-Ru Meng ◽  
Hong-Wei Hou
Keyword(s):  
Coordination Polymers ◽  
Ph Value ◽  
Three Dimensional ◽  
Reaction System ◽  
Chain Structure ◽  
Dimensional Chain ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
X Ray ◽  
Dimensional Network

Changing the pH value of a reaction system can result in polymers with very different compositions and architectures. Two new coordination polymers based on 1,1′-[1,4-phenylenebis(methylene)]bis(3,5-dicarboxylatopyridinium) (L 2−), namely catena-poly[[[tetraaquacadmium(II)]-μ2-1,1′-[1,4-phenylenebis(methylene)]bis(3,5-dicarboxylatopyridinium)] 1.66-hydrate], {[Cd(C22H14N2O8)(H2O)4]·1.66H2O} n , (I), and poly[{μ6-1,1′-[1,4-phenylenebis(methylene)]bis(3,5-dicarboxylatopyridinium)}cadmium(II)], [Cd(C22H14N2O8)] n , (II), have been prepared in the presence of NaOH or HNO3 and structurally characterized by single-crystal X-ray diffraction. In polymer (I), each CdII ion is coordinated by two halves of independent L 2− ligands, forming a one-dimensional chain structure. In the crystal, these chains are further connected through O—H...O hydrogen bonds, leading to a three-dimensional hydrogen-bonded network. In polymer (II), each hexadentate L 2− ligand coordinates to six CdII ions, resulting in a three-dimensional network structure, in which all of the CdII ions and L 2− ligands are equivalent, respectively. The IR spectra, thermogravimetric analyses and fluorescence properties of both reported compounds were investigated.

Syntheses, Structures and Photoluminescent Properties of the Two Novel Coordination Polymers [Cd(pydc)2(tu)]n and [Cd2(SO4)(nic)2(tu)1.5(H2O)2]n (pydc = Pyridine-2,3-dicarboxylate, nic = Nicotinate, tu = Thiourea)

2011 ◽  
Vol 66 (5) ◽  
pp. 459-464 ◽  
Author(s):  
Chao Xu ◽  
Sheng-Bo Liu ◽  
Taike Duan ◽  
Qun Chen ◽  
Qian-Feng Zhang
Keyword(s):  
Hydrogen Bonds ◽  
Coordination Polymers ◽  
Room Temperature ◽  
Three Dimensional ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
One Dimensional ◽  
X Ray ◽  
Dimensional Network

Two novel cadmium coordination polymers, [Cd(pydc)2(tu)]n (1) and [Cd2(SO4)(nic)2(tu)1.5 - (H2O)2]n (2) (pydc = pyridine-2,3-dicarboxylate, nic = nicotinate, tu = thiourea), have been synthesized under hydrothermal conditions and structurally characterized by X-ray diffraction analysis. 1 is a one-dimensional ladder coordination polymer in a two-dimensional network formed by hydrogen bonds. 2 consists of two kinds of Cd(II) centers in different coordination environments connected via nicotinate and sulfate to form a two-dimensional grid network integrated in a three-dimensional framework generated by hydrogen bonds. 2 shows intense fluorescent emission in the solid state at room temperature

A three-dimensional ZnIIcoordination polymer constructed from 1,1′-biphenyl-2,2′,4,4′-tetracarboxylate and 1,4-bis(1H-imidazol-1-yl)benzene ligands exhibiting photoluminescence

2017 ◽  
Vol 73 (2) ◽  
pp. 72-77 ◽  
Author(s):  
Feng Su ◽  
Liping Lu ◽  
Chengyong Zhou ◽  
Xiaoxia Wang ◽  
Long Sun ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Building Blocks ◽  
X Ray Diffraction ◽  
Promising Candidate ◽  
One Dimensional ◽  
X Ray ◽  
Polycarboxylic Acids ◽  
Carboxylate Groups ◽  
Dimensional Network ◽  
Distorted Tetrahedral Coordination

Ligands based on polycarboxylic acids are excellent building blocks for the construction of coordination polymers; they may bind to a variety of metal ions and form clusters, as well as extended chain or network structures. Among these building blocks, biphenyltetracarboxylic acids (H4bpta) withC2symmetry have recently attracted attention because of their variable bridging and multidentate chelating modes. The new luminescent three-dimensional coordination polymer poly[(μ5-1,1′-biphenyl-2,2′,4,4′-tetracarboxylato)bis[μ2-1,4-bis(1H-imidazol-1-yl)benzene]dizinc(II)], [Zn2(C16H6O8)(C12H10N4)]n, was synthesized solvothermally and characterized by single-crystal X-ray diffraction, elemental analysis and IR spectroscopy. The crystal structure contains two crystallographically independent ZnIIcations. Both metal cations are located on twofold axes and display distorted tetrahedral coordination geometries. Neighbouring ZnIIcentres are bridged by carboxylate groups in thesyn–antimode to form one-dimensional chains. Adjacent chains are linked through 1,1′-biphenyl-2,2′,4,4′-tetracarboxylate and 1,4-bis(1H-imidazol-1-yl)benzene ligands to form a three-dimensional network. In the solid state, the compound exhibits blue photoluminescence and represents a promising candidate for a thermally stable and solvent-resistant blue fluorescent material.

Structural investigation of one- and three-dimensional lanthanide(III) coordination polymers based on functionalized terpyridine carboxylate and aromatic dicarboxylate ligands

2019 ◽  
Vol 75 (4) ◽  
pp. 422-432 ◽  
Author(s):  
Chao Bai ◽  
Bin Liu ◽  
Huai-Ming Hu ◽  
Jin-Dian Li ◽  
Xiaofang Wang ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Structural Investigation ◽  
Three Dimensional ◽  
Topological Type ◽  
X Ray Diffraction ◽  
Hydrothermal Conditions ◽  
One Dimensional ◽  
X Ray ◽  
Lanthanide Coordination Polymers ◽  
3D Networks

Three series of lanthanide coordination polymers, namely catena-poly[[lanthanide(III)-μ2-(benzene-1,2-dicarboxylato)-μ2-[2-(2,2′:6′,2′′-terpyridin-4′-yl)benzoato]] monohydrate], {[Ln(C8H4O4)(C22H14N3O2)]·H2O} n or {[Ln(1,2-bdc)(L)]·H2O} n , with lanthanide (Ln) = dysprosium (Dy, 1), holmium (Ho, 2) and erbium (Er, 3), poly[bis(μ2-benzene-1,3-dicarboxylato)bis[μ2-2-(2,2′:6′,2′′-terpyridin-4′-yl)benzoato]dilanthanide(III)], [Ln2(C8H4O4)2(C22H14N3O2)2] n or [Ln2(1,3-bdc)2(L)2] n , with Ln = gadolinium (Gd, 4), Ho (5) and Er (6), and poly[(μ2-benzene-1,4-dicarboxylato)[μ2-2-(2,2′:6′,2′′-terpyridin-4′-yl)benzoato]lanthanide(III)], [Ln(C8H4O4)(C22H14N3O2)] n or [Ln(1,4-bdc)(L)] n , with Ln = Dy (7), Ho (8), Er (9) and ytterbium (Yb, 10), were synthesized under hydrothermal conditions and characterized by elemental analysis, IR and single-crystal X-ray diffraction. Compounds 1–3 possess one-dimensional loop chains with Ln2(COO)2 units, which are extended into three-dimensional (3D) supramolecular structures by π–π interactions. Isostructural compounds 5 and 6 show 6-connected 3D networks, with pcu topology consisting of Ln2(COO)2 units. Compounds 7–10 display 8-connected 3D frameworks with the topological type rob, consisting of Ln2(COO)2 units. The influence of the coordination orientations of the aromatic dicarboxylate groups on the crystal structures is discussed.

One-dimensional copper(II) coordination polymers based on 1,3-bis(pyridin-4-yl)propane and diimine ligands

2019 ◽  
Vol 75 (5) ◽  
pp. 496-503 ◽  
Author(s):  
Satish Shantaram Bhat ◽  
Naveen Shivalingegowda ◽  
Vidyanand Krishna Revankar ◽  
Vitthal Ajinath Kawade ◽  
Ray J. Butcher ◽  
...  
Keyword(s):  
Coordination Polymers ◽  
Three Dimensional ◽  
Molar Ratio ◽  
Nitrate Anion ◽  
Asymmetric Unit ◽  
One Dimensional ◽  
X Ray ◽  
Bridging Ligand ◽  
Diimine Ligands ◽  
Dimensional Network

Two one-dimensional (1D) coordination polymers (CPs), namely catena-poly[[[aqua(2,2′-bipyridine-κ2 N,N′)(nitrato-κO)copper(II)]-μ-1,3-bis(pyridin-4-yl)propane-κ2 N:N′] nitrate], {[Cu(NO3)(C10H8N2)(C13H14N2)(H2O)]·NO3} n (1), and catena-poly[[[aqua(nitrato-κO)(1,10-phenanthroline-κ2 N,N′)copper(II)]-μ-1,3-bis(pyridin-4-yl)propane-κ2 N:N′] nitrate], {[Cu(NO3)(C12H8N2)(C13H14N2)(H2O)]·NO3} n (2), have been synthesized using [Cu(NO3)(NN)(H2O)2]NO3, where NN = 2,2′-bipyridine (bpy) or 1,10-phenanthroline (phen), as a linker in a 1:1 molar ratio. The CPs were characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis and single-crystal X-ray structure determination. The 1,3-bis(pyridin-4-yl)propane (dpp) ligand acts as a bridging ligand, leading to the formation of a 1D polymer. The octahedral coordination sphere around copper consists of two N atoms from bpy for 1 or phen for 2, two N atoms from dpp, one O atom from water and one O atom from a coordinated nitrate anion. Each structure contains two crystallographically independent chains in the asymmetric unit and the chains are linked via hydrogen bonds into a three-dimensional network.

Synthesis and structural characterization of two coordination polymers constructed by bis(4-(1H-imidazol-1-yl)phenyl)methanone and 5-(tert-butyl)isophthalate ligands

2019 ◽  
Vol 74 (3) ◽  
pp. 261-265 ◽  
Author(s):  
Gao-Feng Wang ◽  
Shu-Wen Sun ◽  
Wei-Bing Wang ◽  
Hong Sun ◽  
Shao-Fei Song
Keyword(s):  
Single Crystal ◽  
Coordination Polymers ◽  
Weak Interactions ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Dimensional Network ◽  
Elemental Analyses ◽  
Solvothermal Methods

AbstractTwo coordination polymers, {[Co(bipmo)(tbip)]·3H2O}n (1) and {[Cd(bipmo)(tbip)]·3H2O}n (2) (bipmo=bis(4-(1H-imidazol-1-yl)phenyl)methanone, H2tbip=5-tert-butylisophthalic acid), were synthesized by solvothermal methods and structurally characterized by elemental analyses, infrared spectroscopy, and single-crystal X-ray diffraction. The results from single-crystal X-ray diffraction data indicate that the solid state structures of 1 and 2 consist of metal-aromatic carboxylate layers, which are pillared by weak interactions to generate a three-dimensional network. The topological structures of 1 and 2 are uninodal nets based on 3-connected nodes with the Schläfli symbol of {63}.

Synthesis, crystal structures and characterizations of two homochiral coordination polymers based on a chiral reduced Schiff base ligand

2014 ◽  
Vol 70 (4) ◽  
pp. 375-378 ◽  
Author(s):  
Shao-Ming Ying ◽  
Xiao-Hui Huang ◽  
Wu-Kui Luo ◽  
Yan-Chun Xiao
Keyword(s):  
Schiff Base ◽  
Coordination Polymers ◽  
Schiff Base Ligand ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
Strong Emission ◽  
X Ray ◽  
Dimensional Network ◽  
Elemental Analyses ◽  
Reduced Schiff Base

Two homochiral coordination polymers based on a chiral reduced Schiff base ligand, namely poly[(μ5-4-{[(NR,1S)-(1-carboxylato-2-phenylethyl)amino]methyl}benzoato)zinc(II)], [Zn(C17H15NO4)]n, (1), and poly[(μ5-4-{[(NR,1S)-(1-carboxylato-2-phenylethyl)amino]methyl}benzoato)cobalt(II)], [Co(C17H15NO4)]n, (2), have been obtained by hydrothermal methods and studied by single-crystal X-ray diffraction, elemental analyses, powder X-ray diffraction, thermogravimetric analysis, IR spectroscopy and fluorescence spectroscopy. Compounds (1) and (2) are isostructural and crystallize in theP212121space group. Both display a three-dimensional network structure with a one-dimensional channel, with the benzyl group of the ligand directed towards the channel. An investigation of photoluminescence properties shows that compound (1) displays a strong emission in the purple region.

Two cobalt(II) supramolecular isomers based onN,N′-bis(pyridin-3-yl)oxalamide induced by the molecular orientation of lattice DMF molecules

2016 ◽  
Vol 72 (2) ◽  
pp. 170-173 ◽  
Author(s):  
Di-Chang Zhong ◽  
Ya-Qiong Wen ◽  
Ji-Hua Deng ◽  
Tao-Hua Jian ◽  
Ke-Jun Wang
Keyword(s):  
Coordination Polymers ◽  
Building Block ◽  
Molecular Orientation ◽  
Solvothermal Method ◽  
Building Blocks ◽  
X Ray Diffraction ◽  
Coordination Networks ◽  
One Dimensional ◽  
X Ray ◽  
Supramolecular Isomerism

Supramolecular isomerism for coordination networks refers to the existence of different architectures having the same building blocks and identical stoichiometries. For a given building block, different arrangements can lead to the formation of a series of supramolecular isomers. Two one-dimensional CoIIcoordination polymers based onN,N′-bis(pyridin-3-yl)oxalamide (BPO), bothcatena-poly[[[dichloridocobalt(II)]-bis[μ-N,N′-bis(pyridin-3-yl)oxalamide-κ2N:N′]] dimethylformamide disolvate], {[CoCl2(C12H10N4O2)2]·2C3H7NO}n, have been assembled by the solvothermal method. Single-crystal X-ray diffraction analyses reveal that the two compounds are supramolecular isomers, the isomerism being induced by the orientation of the dimethylformamide (DMF) molecules in the crystal lattice.

scholarly journals Linear One-Dimensional Coordination Polymers Constructed by Dirhodium Paddlewheel and Tetracyanido-Metallate Building Blocks

Crystals ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 614 ◽  
Author(s):  
David Prior ◽  
Miguel Cortijo ◽  
Rodrigo González-Prieto ◽  
Santiago Herrero ◽  
Reyes Jiménez-Aparicio ◽  
...  
Keyword(s):  
Single Crystal ◽  
Coordination Polymers ◽  
Chloroform Solution ◽  
Building Blocks ◽  
X Ray Diffraction ◽  
Dichloromethane Solution ◽  
Space Group ◽  
One Dimensional ◽  
X Ray ◽  
Group A

In this article, we describe the preparation of anionic heteronuclear one-dimensional coordination polymers made by dirhodium paddlewheels and tetracyanido-metallatate building blocks. A series of complexes of (PPh4)2n[{Rh2(µ-O2CCH3)4}{M(CN)4}]n (M = Ni (1), Pd (2), Pt (3)) formulae were obtained by reaction of [Rh2(μ-O2CCH3)4] with (PPh4)2[M(CN)4] in a 1:1 or 2:1 ratio. Crystals of 1−3 suitable for single crystal X-ray diffraction were grown by slow diffusion of a dichloromethane solution of the dirhodium complex into a chloroform solution of the corresponding tetracyanido–metallatate salt. Compounds 1 and 2 are isostructural and crystallize in the triclinic P-1 space group, while compound 3 crystallizes in the monoclinic P21/n space group. A detailed description of the structures is presented, including the analysis of the packing of anionic chains and PPh4+ cations.

One-pot concomitant preparation of two copper(II) coordination polymers with different configurations of bridging bithiophene ligands

2020 ◽  
Vol 76 (1) ◽  
pp. 37-43
Author(s):  
Zhi-Qiang Shi ◽  
Ning-Ning Ji ◽  
Hai-Liang Hu
Keyword(s):  
Hydrogen Bonds ◽  
Single Crystal ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Chain Structure ◽  
X Ray Diffraction ◽  
Compound I ◽  
One Pot ◽  
X Ray ◽  
Vis Spectroscopy

By employing the conjugated bithiophene ligand 5,5′-bis(1H-imidazol-1-yl)-2,2′-bithiophene (bibp), which can exhibit trans and cis conformations, two different CuII coordination polymers, namely, poly[[μ-5,5′-bis(1H-imidazol-1-yl)-2,2′-bithiophene-κ2 N:N′](μ2-4,4′-oxydibenzoato-κ2 O:O′)copper(II)], [Cu(C14H8O5)(C14H10N4S2)] n or [Cu(bibp)(oba)] n , (I), and catena-poly[μ-aqua-bis[μ-5,5′-bis(1H-imidazol-1-yl)-2,2′-bithiophene-κ2 N:N′]bis(μ3-4,4′-oxydibenzoato)-κ3 O:O′:O′′;κ4 O:O′,O′′:O′-dicopper(II)], [Cu2(C14H8O5)2(C14H10N4S2)(H2O)] n or [Cu2(bibp)(oba)2(H2O)] n , (II), have been prepared through one-pot concomitant crystallization and characterized by single-crystal X-ray diffraction, IR spectroscopy, elemental analysis, powder X-ray diffraction (PXRD) and thermogravimetric (TG) analysis. Single-crystal X-ray diffraction indicates that the most interesting aspect of the structure is the existence of sole trans and cis conformations of the bibp ligand in a single net of (I) and (II), respectively. Compound (I) displays a threefold interpenetrating three-dimensional framework with a 4-connected {65.8} cds topology, whereas (II) features a one-dimensional chain structure. In the crystal of (II), the polymeric chains are further extended through C—H...O hydrogen bonds and C—H...π interactions into a three-dimensional supramolecular architecture. In addition, strong intramolecular O—H...O hydrogen bonds formed between the bridging water molecules and the carboxylate O atoms improve the stability of the framework of (II). Furthermore, solid-state UV–Vis spectroscopy experiments show that compounds (I) and (II) exhibit optical band gaps which are characteristic for optical semiconductors, with values of 2.70 and 2.26 eV, respectively.

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