Novel Zn(II) coordination polymer based on 1,2-bis(4-pyridyl)hydrazine — From two-dimensional to three-dimensional network

2012 ◽  
Vol 90 (1) ◽  
pp. 100-107 ◽  
Author(s):  
Huaishan Wang ◽  
Lap Szeto ◽  
Wesley Ting Kwok Chan ◽  
Ho-Lun Yeung ◽  
Ka-Leung Wong ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Terephthalic Acid ◽  
Three Dimensional ◽  
Unit Cell ◽  
Two Dimensional ◽  
Dimensional Network

Two MOFs were reported based on Zn(II) with 1,2-bis(4-pyridyl)hydrazine (L1); a two-dimensional interpenetrating MOF I of formula [Zn2(L1)2(L2)2]∞ was formed with terephthalic acid (L2) as an additional linker. A three-dimensional MOF II of formula [Zn2(L1)2(L3)2]∞, was formed with the use of a larger spacer 2,6-naphthalenedicarboxylic acid (L3). MOF II consists of large porosity with a total volume of 3746 Å3 that occupies 34.1% of the unit cell.

Poly[deca-μ2-cyanido-dicyanidobis(μ2-ethylenediamine)bis(ethylenediamine)tricadmium(II)dicobalt(III)]: a two-dimensional coordination polymer

2009 ◽  
Vol 65 (3) ◽  
pp. m118-m120
Author(s):  
Olha Sereda ◽  
Helen Stoeckli-Evans
Keyword(s):  
Coordination Polymer ◽  
Network Structure ◽  
General Position ◽  
Rotation Axis ◽  
Three Dimensional ◽  
The Other ◽  
Dimensional Structure ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Dimensional Network

The title coordination polymer, [Cd3Co2(CN)12(C2H8N2)4]n, has an infinite two-dimensional network structure. The asymmetric unit is composed of two crystallographically independent CdIIatoms, one of which is located on a twofold rotation axis. There are two independent ethylenediamine (en) ligands, one of which bis-chelates to the Cd atom that sits in a general position, while the other bridges this Cd atom to that sitting on the twofold axis. The Cd atom located on the twofold rotation axis is linked to four equivalent CoIIIatomsviacyanide bridges, while the Cd atom that sits in a general position is connected to three equivalent CoIIIatomsviacyanide bridges. In this way, a series of trinuclear, tetranuclear and pentanuclear macrocycles are linked to form a two-dimensional network structure lying parallel to thebcplane. In the crystal structure, these two-dimensional networks are linkedviaN—H...N hydrogen bonds involving an en NH2H atom and a cyanide N atom, leading to the formation of a three-dimensional structure. This coordination polymer is only the second example involving a cyanometallate where the en ligand is present in both chelating and bridging coordination modes.

A new two-dimensional ZnIIcoordination polymer constructed by a multidentate N-heterocyclic ligand and 5-carboxybenzene-1,3-dicarboxylate

2015 ◽  
Vol 71 (8) ◽  
pp. 701-705 ◽  
Author(s):  
Qiu-Ying Huang ◽  
Yi Yang ◽  
Xiang-Ru Meng
Keyword(s):  
Solid State ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Supramolecular Architecture ◽  
Two Dimensional ◽  
Tetrahedral Geometry ◽  
Heterocyclic Ligand ◽  
Distorted Tetrahedral Geometry ◽  
Dimensional Network

In the coordination polymer, poly[[{μ-1-[(1H-benzimidazol-2-yl)methyl]-1H-imidazole-κ2N:N′}(μ-5-carboxybenzene-1,3-dicarboxylato-κ2O1:O3)zinc(II)] dimethylformamide monosolvate pentahydrate], {[Zn(C9H4O6)(C11H10N4)]·C3H7NO·5H2O}n, the ZnIIion is coordinated by two N atoms from two symmetry-related 1-[(1H-benzimidazol-2-yl)methyl]-1H-imidazole (bmi) ligands and two O atoms from two symmetry-related 5-carboxybenzene-1,3-dicarboxylate (Hbtc2−) ligands in a slightly distorted tetrahedral geometry. The ZnIIions are bridged by Hbtc2−and bmi ligands, leading to a 4-connected two-dimensional network with the topological notation (44.62). Adjacent layers are further connected by 12 kinds of hydrogen bonds and also by π–π interactions, resulting in a three-dimensional supramolecular architecture in the solid state.

A one-dimensional zinc(II) coordination polymer based on mixed multidentateN- andO-donor ligands

2015 ◽  
Vol 71 (4) ◽  
pp. 306-310 ◽  
Author(s):  
Qiu-Ying Huang ◽  
Yu-Hong Zhang ◽  
Xiang-Ru Meng
Keyword(s):  
Coordination Polymer ◽  
Main Chain ◽  
Three Dimensional ◽  
Donor Ligands ◽  
Dimensional Chain ◽  
Two Dimensional ◽  
Coordination Environment ◽  
One Dimensional ◽  
Carboxylate Groups ◽  
Dimensional Network

In the title coordination polymer,catena-poly[[bis[{1-[(1H-benzimidazol-2-yl-κN3)methyl]-1H-tetrazole}zinc(II)]-bis(μ4-pentane-1,5-dioato-1:2:1′:2′κ4O1:O1′:O5:O5′)] methanol disolvate], {[Zn(C5H6O4)(C9H8N6)]·CH3OH}n, each ZnIIion is five-coordinated by four O atoms from four glutarate ligands and by one N atom from a 1-[(1H-benzimidazol-2-yl)methyl]-1H-tetrazole (bimt) ligand, leading to a slightly distorted square-pyramidal coordination environment. Two ZnIIions are linked by four bridging glutarate carboxylate groups to generate a dinuclear [Zn2(CO2)4] paddle-wheel unit. The dinuclear units are further connected into a one-dimensional chainviathe glutarate ligands. The bimt ligands coordinate to the ZnIIions in a monodentate mode and are pendant on both sides of the main chain. In the crystal, the chains are linked by O—H...O and N—H...O hydrogen bonds into a two-dimensional layered structure. Adjacent layers are further packed into a three-dimensional network through van der Waals forces. A thermogravimetric analysis was carried out and the photoluminescent behaviour of the polymer was investigated.

Poly[(μ-pentafluorobenzoato-κ2O:O′)(pentafluorobenzoato-κO)(μ-pyrazine-κ2N:N′)copper(II)]: a coordination polymer linked into a three-dimensional network by intermolecular C—H...F—C interactions

2014 ◽  
Vol 70 (11) ◽  
pp. 1017-1020 ◽  
Author(s):  
Li-Juan Han ◽  
Ya-Jie Kong
Keyword(s):  
Coordination Polymer ◽  
Title Compound ◽  
Three Dimensional ◽  
Coordination Geometry ◽  
Supramolecular Architecture ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Dimensional Network

In the title compound, [Cu(C6F5COO)2(C4H4N2)]n, (I), the asymmetric unit contains one CuIIcation, two anionic pentafluorobenzoate ligands and one pyrazine ligand. Each CuIIcentre is five-coordinated by three O atoms from three independent pentafluorobenzoate anions, as well as by two N atoms from two pyrazine ligands, giving rise to an approximately square-pyramidal coordination geometry. Adjacent CuIIcations are bridged by a pyrazine ligand and two pentafluorobenzoate anions to give a two-dimensional layer. The layers are stacked to generate a three-dimensional supramolecular architectureviastrong intermolecular C—H...F—C interactions, as indicated by the F...H distance of 2.38 Å.

scholarly journals Synthesis, structure and magnetocaloric properties of a new two-dimensional gadolinium(III) coordination polymer based on azobenzene-2,2′,3,3′-tetracarboxylic acid

2021 ◽  
Vol 77 (10) ◽  
pp. 591-598
Author(s):  
Wen-Wen Wei ◽  
Li-Ping Lu ◽  
Si-Si Feng ◽  
Miao-Li Zhu ◽  
Ulli Englert
Keyword(s):  
Coordination Polymer ◽  
Linear Chain ◽  
Three Dimensional ◽  
Monoclinic Space Group ◽  
Two Dimensional ◽  
Tetracarboxylic Acid ◽  
Symmetry Direction ◽  
Carboxylate Groups ◽  
Dimensional Network ◽  
Short Hydrogen Bond

A new Gd3+ coordination polymer (CP), namely, poly[diaqua[μ4-1′-carboxy-3,3′-(diazene-1,2-diyl)dibenzene-1,2,2′-tricarboxylato]gadolinium(III)], [Gd(C16H7N2O8)(H2O)2] n , (I), has been synthesized hydrothermally from Gd(NO3)3·6H2O and azobenzene-2,2′,3,3′-tetracarboxylic acid (H4abtc). The target solid has been characterized by single-crystal and powder X-ray diffraction, elemental analysis, IR spectroscopy and susceptibility measurements. CP (I) crystallizes in the monoclinic space group C2/c. The structure features a 4-connected topology in which Gd3+ ions are connected by carboxylate groups into a linear chain along the monoclinic symmetry direction. Adjacent one-dimensional aggregates are bridged by Habtc3− ligands to form a two-dimensional CP in the (10-1) plane. A very short hydrogen bond [O...O = 2.4393 (4) Å] links neighbouring layers into a three-dimensional network. A magnetic study revealed antiferromagnetic Gd...Gd coupling within the chain direction. CP (I) displays a significant magnetocaloric effect (MCE), with a maximum −ΔS m of 27.26 J kg−1 K−1 for ΔH = 7 T at 3.0 K. As the MCE in (I) exceeds that of the commercial magnetic refrigerant GGG (Gd3Ga5O12, −ΔS m = 24 J kg−1 K−1, ΔH = 30 kG), CP (I) can be regarded as a potential cryogenic material for low-temperature magnetic refrigeration.

A three-dimensional cadmium(II) coordination polymer: poly[[[μ-4,4′-(propane-1,3-diyl)dipyridine-κ2N:N](μ-3,3′-thiodipropionato-κ3O,O′:O)cadmium(II)] monohydrate]

2014 ◽  
Vol 70 (7) ◽  
pp. 712-714
Author(s):  
Xiao-Min Hao ◽  
Gang Chen ◽  
Chang-Sheng Gu ◽  
Ji-Wei Liu
Keyword(s):  
Coordination Polymer ◽  
Three Dimensional ◽  
Octahedral Coordination ◽  
Two Dimensional ◽  
One Dimensional ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral

In the title coordination polymer, {[Cd(C6H8O4S)(C13H14N2)]·H2O}n, the CdIIatom displays a distorted octahedral coordination, formed by three carboxylate O atoms and one S atom from three different 3,3′-thiodipropionate ligands, and two N atoms from two different 4,4′-(propane-1,3-diyl)dipyridine ligands. The CdIIcentres are bridged through carboxylate O atoms of 3,3′-thiodipropionate ligands and through N atoms of 4,4′-(propane-1,3-diyl)dipyridine ligands to form two different one-dimensional chains, which intersect to form a two-dimensional layer. These two-dimensional layers are linked by S atoms of 3,3′-thiodipropionate ligands from adjacent layers to form a three-dimensional network.

Poly[aqua-μ3-p-aminobenzoato-κ3 N:O:O′-μ2-p-aminobenzoato-κ2 O:O′-p-aminobenzoato-κ2 O,O′-gadolinium(III)]

2006 ◽  
Vol 62 (7) ◽  
pp. m1550-m1552 ◽  
Author(s):  
Zi-Lu Chen ◽  
Yu-Zhen Zhang ◽  
Fu-Pei Liang
Keyword(s):  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Coordination Polymers ◽  
Title Compound ◽  
Supramolecular Structure ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Carboxylate Groups ◽  
Dimensional Network

In the title compound, [Gd(C7H6NO2)3(H2O)] n , a two-dimensional coordination polymer, the eight-coordinate GdIII ions are bridged by two carboxylate groups from two μ2-p-aminobenzoate ligands, forming a centrosymmetric dinuclear block. These blocks are further connected by μ3-p-aminobenzoate ligands, yielding a two-dimensional network. The coordination polymers thus formed are connected via hydrogen bonds, producing a three-dimensional supramolecular structure.

A two-dimensional CdII coordination polymer with 2,2′-(disulfanediyl)dibenzoate and 1,10-phenanthroline ligands

2014 ◽  
Vol 70 (5) ◽  
pp. 517-521
Author(s):  
Yu-Xiu Jin ◽  
Fang Yang ◽  
Li-Min Yuan ◽  
Chao-Guo Yan ◽  
Wen-Long Liu
Keyword(s):  
Coordination Polymer ◽  
Three Dimensional ◽  
Phen Ligand ◽  
Supramolecular Architecture ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Π Interactions ◽  
Carboxylate Groups ◽  
Phenanthroline Ligand ◽  
Phenanthroline Ligands

In poly[[μ3-2,2′-(disulfanediyl)dibenzoato-κ5 O:O,O′:O′′,O′′′](1,10-phenanthroline-κ2 N,N′)cadmium(II)], [Cd(C14H8O4S2)(C12H8N2)] n , the asymmetric unit contains one CdII cation, one 2,2′-(disulfanediyl)dibenzoate anion (denoted dtdb2−) and one 1,10-phenanthroline ligand (denoted phen). Each CdII centre is seven-coordinated by five O atoms of bridging/chelating carboxylate groups from three dtdb2− ligands and by two N atoms from one phen ligand, forming a distorted pentagonal–bipyramidal geometry. The CdII cations are bridged by dtdb2− anions to give a two-dimensional (4,4) layer. The layers are stacked to generate a three-dimensional supramolecular architecture via a combination of aromatic C—H...π and π–π interactions. The thermogravimetric and luminescence properties of this compound were also investigated.

scholarly journals 2-Amino-3-carboxypyridinium perchlorate

2012 ◽  
Vol 68 (6) ◽  
pp. o1601-o1602 ◽  
Author(s):  
Fadila Berrah ◽  
Sofiane Bouacida ◽  
Hayet Anana ◽  
Thierry Roisnel
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Dimensional Network

The asymmetric unit includes two crystallographically independent equivalents of the title salt, C6H7N2O2 +·ClO4 −. The cations and anions form separate layers alternating along the c axis, which are linked by N—H...O, O—H...O and C—H...O hydrogen bonds into a two-dimensional network parallel to (100). Further C—H...O contacts connect these layers, forming a three-dimensional network, in which R 4 4(20) rings and C 2 2(11) infinite chains can be identified.

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