Magnetic investigations of a two-dimensional coordination polymer with a three-dimensional supramolecular framework: poly[[bis[μ2-1,4-bis(1,2,4-triazol-1-yl)butane]bis(thiocyanato-κN)cobalt(II)] dihydrate]

2013 ◽  
Vol 69 (6) ◽  
pp. 597-600 ◽  
Author(s):  
Jian-Qing Tao ◽  
Dan Mao ◽  
Jun Wang
Keyword(s):  
Three Dimensional ◽  
Octahedral Geometry ◽  
Antiferromagnetic Coupling ◽  
Two Dimensional ◽  
Supramolecular Framework ◽  
Polymeric Complex ◽  
Asymmetric Unit ◽  
Solvent Water ◽  
Metal Organic ◽  
Thiocyanate Ligand

In the title mixed-ligand metal–organic polymeric complex, {[Co(NCS)2(C8H12N6)2]·2H2O}n, the asymmetric unit contains a divalent CoIIcation, which sits on an inversion centre, two halves of two crystallographically distinct and centrosymmetric 1,4-bis(1,2,4-triazol-1-yl)butane (BTB) ligands, oneN-bound thiocyanate ligand and one solvent water molecule. The CoIIatom possesses a distorted {CoN6} octahedral geometry, with the equatorial positions taken up by triazole N atoms from four different BTB ligands. The axial positions are filled by thiocyanate N atoms. In the crystal, each CoIIatom is linked covalently to four others through the distal donors of the tethering BTB ligands, forming a neutral (4,4)-topology two-dimensional rhomboid grid layer motif, which is coincident with the (1\overline{2}1) crystal planes. Magnetic investigations show that weak antiferromagnetic coupling exists between CoIIatoms in the complex.

A novel two-dimensional coordination polymer: poly[diaquatetra-μ2-chlorido-[μ2-2,2′-(piperazine-1,4-diium-1,4-diyl)diacetate]dicadmium(II)]

2013 ◽  
Vol 69 (6) ◽  
pp. 620-623 ◽  
Author(s):  
Xiao-Juan Xu ◽  
Jian-Yun Miao ◽  
Jun Wang
Keyword(s):  
Three Dimensional ◽  
Aqua Ligand ◽  
Two Dimensional ◽  
Polymeric Complex ◽  
Asymmetric Unit ◽  
Octahedral Environment ◽  
Metal Organic ◽  
Chloride Ligands ◽  
Complex Forms ◽  
Ring Centroid

In the crystal structure of the title two-dimensional metal–organic polymeric complex, [Cd2Cl4(C8H14N2O4)(H2O)2]n, the asymmetric unit contains a crystallographically independent CdIIcation, two chloride ligands, an aqua ligand and half a 2,2′-(piperazine-1,4-diium-1,4-diyl)diacetate (H2PDA) ligand, the piperazine ring centroid of which is located on a crystallographic inversion centre. Each CdIIcentre is six-coordinated in an octahedral environment by an O atom from an H2PDA ligand and an O atom from an aqua ligand in atransdisposition, and by four chloride ligands arranged in the plane perpendicular to the O—Cd—O axis. The complex forms a two-dimensional layer polymer containing [CdCl2]nchains, which are interconnected into an extensive three-dimensional hydrogen-bonded network by C—H...O, C—H...Cl and O—H...O hydrogen bonds.

Controllable assembly of a three-dimensional metal–organic supramolecular framework including π–π stacking interactions

2012 ◽  
Vol 69 (1) ◽  
pp. 8-10
Author(s):  
Hua Cai ◽  
Ying Guo ◽  
Jian-Gang Li
Keyword(s):  
Three Dimensional ◽  
Mixed Ligand ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Supramolecular Framework ◽  
Organic Complex ◽  
Π Stacking ◽  
Dimensional Network ◽  
Metal Organic Complex ◽  
Metal Organic

The mixed-ligand metal–organic complex poly[(μ3-phthalato)[μ2-3-(pyridin-2-yl)-1H-pyrazol-1-ido]dicopper(II)], [Cu2(C8H4O4)(C8H6N3)2]n, has been synthesized by the reaction of copper(II) acetate with 2-(1H-pyrazol-3-yl)pyridine (HL) and phthalic acid. The binuclear chelating–bridgingLunits are further linked by bridging phthalate ligands into a two-dimensional network parallel to the (010) plane. The two-dimensional networks are extended into a three-dimensional supramolecular architectureviaπ–π stacking interactions.

A three-dimensional hybrid framework based on novel [Co4Mo4] bimetallic oxide clusters with 3,5-bis(3-pyridyl)-1,2,4-triazole ligands

2009 ◽  
Vol 65 (3) ◽  
pp. m128-m130 ◽  
Author(s):  
Quan-Guo Zhai ◽  
Shu-Ni Li ◽  
Man-Cheng Hu ◽  
Yu-Cheng Jiang
Keyword(s):  
Water Molecule ◽  
Three Dimensional ◽  
Hybrid Architecture ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Inorganic Hybrid ◽  
Solvent Water ◽  
Hybrid Complex ◽  
Hybrid Framework ◽  
Inorganic Layers

In the title organic–inorganic hybrid complex, poly[[[μ-3,5-bis(3-pyridyl)-1,2,4-triazole]tri-μ3-oxido-tetra-μ2-oxido-oxidodicobalt(II)dimolybdenum(VI)] monohydrate], {[Co2Mo2O8(C12H9N5)]·H2O}n, the asymmetric unit is composed of two CoIIcenters, two [MoVIO4] tetrahedral units, one neutral 3,5-bis(3-pyridyl)-1,2,4-triazole (BPT) ligand and one solvent water molecule. The cobalt centers both exhibit octahedral [CoO5N] coordination environments. Four CoIIand four MoVIcenters are linked by μ2-oxide and/or μ3-oxide bridges to give an unprecedented bimetallic octanuclear [Co4Mo4O22N4] cluster, which can be regarded as the first example of a metal-substituted octamolybdate and exhibits a structure different from those of the eight octamolybdate isomers reported to date. The bimetallic oxide clusters are linked to each other through corner-sharing to give two-dimensional inorganic layers, which are further bridged bytrans-BPT ligands to generate a three-dimensional organic–inorganic hybrid architecture with six-connected distorted α-Po topology.

A novel three-dimensional ZnIIcoordination polymer with 1,3,5-tris(imidazol-1-ylmethyl)benzene and cyclohexane-1,3,5-tricarboxylate ligands

2014 ◽  
Vol 70 (2) ◽  
pp. 189-193 ◽  
Author(s):  
Kai-Long Zhong
Keyword(s):  
Three Dimensional ◽  
Water Molecules ◽  
Two Dimensional ◽  
Tetrahedral Coordination ◽  
Organic Structure ◽  
Solvent Water ◽  
Carboxylate Groups ◽  
Dimensional Network ◽  
Metal Organic ◽  
Distorted Tetrahedral Coordination

In the ZnIIcompound poly[[bis(μ3-cyclohexane-1,3,5-tricarboxylato)bis[μ3-1,3,5-tris(imidazol-1-ylmethyl)benzene]trizinc(II)] hexahydrate], {[Zn3(C18H18N6)2(C9H9O6)2]·6H2O}n, based on mixed 1,3,5-tris(imidazol-1-ylmethyl)benzene and cyclohexane-1,3,5-tricarboxylate ligands, there are two types of crystallographically independent ZnIIcentres, one in a general position and one on a crystallographic twofold axis. They have similar fourfold distorted tetrahedral coordination geometries, ligated by two monodentate carboxylate groups from two cyclohexane-1,3,5-tricarboxylate ligands and by two N atoms from two 1,3,5-tris(imidazol-1-ylmethyl)benzene ligands. The cyclohexane-1,3,5-tricarboxylate anions link the ZnIIcations to generate a two-dimensional layered metal–organic structure running parallel to the (\overline{2}01) plane. Adjacent layers are further connected by tripodal 1,3,5-tris(imidazol-1-ylmethyl)benzene ligands, resulting in a three-dimensional network. The solvent water molecules are linked to the cyclohexane-1,3,5-tricarboxylate ligandsviawater–carboxylate O—H...O hydrogen bonds.

scholarly journals Crystal structure ofcatena-poly[[[tetraaquazinc(II)]-μ-1,4-bis[4-(1H-imidazol-1-yl)benzoyl]piperazine] dinitrate monohydrate]

2015 ◽  
Vol 71 (5) ◽  
pp. m120-m121
Author(s):  
Chen Hou ◽  
Hong-Mei Gan ◽  
Jia-Cheng Liu
Keyword(s):  
Rotation Axis ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Water Molecules ◽  
Supramolecular Architecture ◽  
Inversion Center ◽  
Polymeric Complex ◽  
Solvent Water ◽  
Polymeric Chains ◽  
Nitrate Anions

In the title polymeric complex, {[Zn(C24H22N6O2)(H2O)4](NO3)2·2H2O}n, the ZnIIcation, located about a twofold rotation axis, is coordinated by two imidazole groups and four water molecules in a distorted N2O4octahedral geometry; among the four coordinate water molecules, two are located on the same twofold rotation axis. The 1,4-bis[4-(1H-imidazol-1-yl)benzoyl]piperazine] ligand is centro-symmetric, with the centroid of the piperazine ring located on an inversion center, and bridges the ZnIIcations, forming polymeric chains propagating along [201]. In the crystal, O—H...O and weak C—H...O hydrogen bonds link the polymeric chains, nitrate anions and solvent water molecules into a three-dimensional supramolecular architecture. A short O...O contact of 2.823 (13) Å is observed between neighboring nitrate anions.

scholarly journals Crystal structure of a two-dimensional grid-type iron(II) coordination polymer: poly[[diaquatetra-μ-cyanido-diargentate(I)iron(II)]trans-1,2-bis(pyridin-2-yl)ethylene disolvate]

2014 ◽  
Vol 70 (8) ◽  
pp. 107-110 ◽  
Author(s):  
Jintana Othong ◽  
Nanthawat Wannarit ◽  
Chaveng Pakawatchai ◽  
Sujittra Youngme
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Water Molecules ◽  
Supramolecular Architecture ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Guest Molecules ◽  
Related Compounds

In the title compound, {[Ag2Fe(CN)4(H2O)2]·2C12H10N2}n, the asymmetric unit contains one FeIIcation, two water molecules, two dicyanidoargentate(I) anions and two uncoordinating 1,2-bis(pyridin-2-yl)ethylene (2,2′-bpe) molecules. Each FeIIatom is six-coordinated in a nearly regular octahedral geometry by four N atoms from dicyanidoargentate(I) bridges and two coordinating water molecules. The FeIIatoms are bridged by dicyanidoargentate(I) units to give a two-dimensional layer with square-grid spaces. The intergrid spaces with interlayer distance of 6.550 (2) Å are occupied by 2,2′-bpe guest molecules which form O—H...N hydrogen bonds to the host layers. This leads to an extended three-dimensional supramolecular architecture. The structure of the title compound is compared with some related compounds containing dicyanidoargentate(I) ligands and N-donor organic co-ligands.

scholarly journals Crystal structures of {[Cu(Lpn)2][Fe(CN)5(NO)]·H2O}nand {[Cu(Lpn)2]3[Cr(CN)6]2·5H2O}n[where Lpn = (R)-propane-1,2-diamine]: two heterometallic chiral cyanide-bridged coordination polymers

2015 ◽  
Vol 71 (4) ◽  
pp. 392-397
Author(s):  
Olha Sereda ◽  
Helen Stoeckli-Evans
Keyword(s):  
Hydrogen Bonds ◽  
Coordination Polymers ◽  
Three Dimensional ◽  
Water Molecules ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Compound I ◽  
Distorted Octahedral ◽  
Coordination Spheres ◽  
Compound Ii

The title compounds,catena-poly[[[bis[(R)-propane-1,2-diamine-κ2N,N′]copper(II)]-μ-cyanido-κ2N:C-[tris(cyanido-κC)(nitroso-κN)iron(III)]-μ-cyanido-κ2C:N] monohydrate], {[Cu(Lpn)2][Fe(CN)5(NO)]·H2O}n, (I), and poly[[hexa-μ-cyanido-κ12C:N-hexacyanido-κ6C-hexakis[(R)-propane-1,2-diamine-κ2N,N′]dichromium(III)tricopper(II)] pentahydrate], {[Cu(Lpn)2]3[Cr(CN)6]2·5H2O}n, (II) [where Lpn = (R)-propane-1,2-diamine, C3H10N2], are new chiral cyanide-bridged bimetallic coordination polymers. The asymmetric unit of compound (I) is composed of two independent cation–anion units of {[Cu(Lpn)2][Fe(CN)5)(NO)]} and two water molecules. The FeIIIatoms have distorted octahedral geometries, while the CuIIatoms can be considered to be pentacoordinate. In the crystal, however, the units align to form zigzag cyanide-bridged chains propagating along [101]. Hence, the CuIIatoms have distorted octahedral coordination spheres with extremely long semicoordination Cu—N(cyanido) bridging bonds. The chains are linked by O—H...N and N—H...N hydrogen bonds, forming two-dimensional networks parallel to (010), and the networks are linkedviaN—H...O and N—H...N hydrogen bonds, forming a three-dimensional framework. Compound (II) is a two-dimensional cyanide-bridged coordination polymer. The asymmetric unit is composed of two chiral {[Cu(Lpn)2][Cr(CN)6]}−anions bridged by a chiral [Cu(Lpn)2]2+cation and five water molecules of crystallization. Both the CrIIIatoms and the central CuIIatom have distorted octahedral geometries. The coordination spheres of the outer CuIIatoms of the asymmetric unit can be considered to be pentacoordinate. In the crystal, these units are bridged by long semicoordination Cu—N(cyanide) bridging bonds forming a two-dimensional network, hence these CuIIatoms now have distorted octahedral geometries. The networks, which lie parallel to (10-1), are linkedviaO—H...O, O—H...N, N—H...O and N—H...N hydrogen bonds involving all five non-coordinating water molecules, the cyanide N atoms and the NH2groups of the Lpn ligands, forming a three-dimensional framework.

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.

scholarly journals Mechanochemical Synthesis of a Mercury(II) Metal-Organic Framework Reveals a Two-Dimensional Polymorph Stabilized by Weak Interactions

2019 ◽  
Author(s):  
Isaiah R. Speight ◽  
Igor Huskić ◽  
Mihails Arhangelskis ◽  
Hatem M. Titi ◽  
Robin Stein ◽  
...  
Keyword(s):  
Density Functional ◽  
Weak Interactions ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
Density Functional Theory Calculations ◽  
Dimensional Structure ◽  
Reaction Monitoring ◽  
Two Dimensional ◽  
Functional Theory ◽  
Metal Organic

Solid-state mechanochemistry revealed a novel polymorph of the mercury(II) imidazolate framework, based on square-grid (sql) topology layers. Reaction monitoring and periodic density functional theory calculations show that the sql-structure is of higher stability than the previously reported three-dimensional structure, with the unexpected stabilization of a lower dimensionality structure explained by contributions of weak interactions, which include short C-H···Hg contacts.

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