A two-dimensional cadmium(II) coordination polymer based on 5-(pyridin-4-yl)isophthalic acid: poly[[tetraaquabis[μ3-5-(pyridin-4-yl)isophthalato]dicadmium(II)] pentahydrate]

2015 ◽  
Vol 71 (9) ◽  
pp. 834-838 ◽  
Author(s):  
Fang Liu ◽  
Jing-Jing Zhang ◽  
Ming-Yuan Lei ◽  
Qing-Fu Zhang
Keyword(s):  
Hydrothermal Reaction ◽  
Layer Structure ◽  
Three Dimensional ◽  
Isophthalic Acid ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Hydrogen Bonding Interactions ◽  
Carboxylate Groups ◽  
Coordinated Water

The title CdIIcompound, {[Cd2(C13H7NO4)2(H2O)4]·5H2O}n, was synthesized by the hydrothermal reaction of Cd(NO3)2·4H2O and 5-(pyridin-4-yl)isophthalic acid (H2L). The asymmetric unit contains two crystallographically independent CdIIcations, two deprotonatedL2−ligands, four coordinated water molecules and five isolated water molecules. One of the CdIIcations adopts a six-coordinate octahedral coordination geometry involving three O atoms from one bidentate chelating and one monodentate carboxylate group of two differentL2−ligands, one N atom of anotherL2−ligand and two coordinated water molecules. The second CdIIcation adopts a seven-coordinate pentagonal–bipyramidal coordination geometry involving four O atoms from two bidentate chelating carboxylate groups of two differentL2−ligands, one N atom of anotherL2−ligand and two coordinated water molecules. EachL2−ligand bridges three CdIIcations and, likewise, each CdIIcation connects to threeL2−ligands, giving rise to a two-dimensional graphite-like 63layer structure. These two-dimensional layers are further linked by O—H...O hydrogen-bonding interactions to form a three-dimensional supramolecular architecture. The photoluminescence properties of the title compound were also investigated.

scholarly journals Poly[diaqua(μ5-1H-imidazole-4,5-dicarboxylato)(μ4-1H-imidazole-4,5-dicarboxylato)trisilver(I)ytterbium(III)]

2012 ◽  
Vol 68 (8) ◽  
pp. m1073-m1074
Author(s):  
Si-Ming Zhu
Keyword(s):  
Hydrogen Bonding ◽  
Three Dimensional ◽  
The Other ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Hydrogen Bonding Interactions ◽  
Trigonal Prismatic Coordination ◽  
Trigonal Prismatic

The asymmetric unit of the title compound, [Ag3Yb(C5HN2O4)2(H2O)2]n, contains three AgIions, one YbIIIion, two imidazole-4,5-dicarboxylate ligands and two coordinating water molecules. The YbIIIatom is eight-coordinated, in a bicapped trigonal prismatic coordination geometry, by six O atoms from three imidazole-4,5-dicarboxylate ligands and two coordinating water molecules. The two-coordinated AgIions exhibit three types of coordination environments. One AgIatom is bonded to two N atoms from two different imidazole-4,5-dicarboxylate ligands. The other two AgIatoms are each coordinated by one O atom and one N atom from two different imidazole-4,5-dicarboxylate ligands. These metal coordination units are connected by bridging imidazole-4,5-dicarboxylate ligands, generating a two-dimensional heterometallic layer. These layers are stacked along theaaxisviaO—H...O hydrogen-bonding interactions to generate a three-dimensional framework.

scholarly journals Poly[[diaquabis[μ4-5-nitroisophthalato-κ4O1:O1:O3:O3′]bis[μ3-pyridine-4-carboxylato-κ3O:O′:N]tricobalt(II)] tetrahydrate]

2012 ◽  
Vol 68 (4) ◽  
pp. m451-m452
Author(s):  
Xia Yin ◽  
Jun Fan ◽  
Jingling Xin ◽  
Shengrun Zheng ◽  
Weiguang Zhang
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Three Dimensional ◽  
Free Water ◽  
Water Molecules ◽  
Two Dimensional ◽  
Lattice Water ◽  
Free Water Molecule ◽  
Carboxylate Groups ◽  
Coordinated Water

The title compound, {[Co3(C6H4NO2)2(C8H3NO6)2(H2O)2]·4H2O}n, exhibits a two-dimensional layer-like structure in which the CoIIions exhibit two kinds of coordination geometries. One nearly octahedral CoIIion with crystallographic inversion symmetry is coordinated to six carboxylate O atoms from four bridging 5-nitroisophthalate (NIPH) ligands and two isonicotinate (IN) anions, while the other type of CoIIion binds with one N atom and one carboxylate O atom from two IN anions, two carboxylate O atoms from two different NIPH anions and one ligated water molecule, displaying a distorted square-pyramidal coordination geometry. Three adjacent CoIIions are bridged by six carboxylate groups from four NIPH ligands and two IN anions to form a linear trinuclear secondary building unit (SBU). Every trinuclear SBU is linked to its nearest neighbours in theabplane, resulting in a two-dimensional layer-like structure perpendicular to thecaxis. Along thea-axis direction neighbouring molecules are connected through carboxylate and pyridyl units of the IN anions, along thebaxis through carboxylate groups of the NIPH ligands. The H atoms of one free water molecule are disordered in the crystal in a 1:1 ratio. Typical O—H...O hydrogen bonds are observed in the lattice, which include the following contacts: (a) between coordinated water molecules and carboxylate O atoms of the NIPH anions, (b) between lattice water molecules and carboxylate O atoms of the NIPH anions, and (c) between coordinated and lattice water molecules. These intermolecular hydrogen bonds connect the two-dimensional layers to form a three-dimensional supramolecular structure.

A novel cadmium(II) coordination polymer containing two kinds of independent one-dimensional chain

2013 ◽  
Vol 69 (8) ◽  
pp. 829-832 ◽  
Author(s):  
Wei-Qiang Liao ◽  
Yi Zhang
Keyword(s):  
Three Dimensional ◽  
Water Molecules ◽  
Dimensional Chain ◽  
Two Dimensional ◽  
One Dimensional ◽  
Solvent Water ◽  
Carboxylate Groups ◽  
Chloride Ligand ◽  
Chloride Ligands ◽  
Coordinated Water

The structure of the title compound,catena-poly[[cadmium(II)-di-μ-chlorido-μ-(1,4-diazoniabicyclo[2.2.2]octane-1-carboxylato)] [[aquachloridocadmium(II)]-di-μ-chlorido] dihydrate], {[Cd(C8H15N2O2)Cl2][CdCl3(H2O)]·2H2O}n, contains two kinds of independent one-dimensional chain,viz.{[Cd(C8H15N2O2)Cl2]+}nand {[CdCl3(H2O)]−}n, and uncoordinated water molecules. Each CdIIcation in the {[Cd(C8H15N2O2)Cl2]+}nchain is octahedrally coordinated by two pairs of bridging chloride ligands and two O atoms from different bridging carboxylate groups. CdIIcations in the {[CdCl3(H2O)]−}nchain are also octahedrally surrounded by four bridging chloride ligands, one terminal chloride ligand and one coordinated water molecule. Hydrogen bonds between solvent water molecules and these two independent chains generate a three-dimensional framework containing two-dimensional zigzag layers.<!?tpb=18pt>

CdII and CoII coordination polymers constructed from benzene-1,4-dicarboxylic acid and 2-(pyridin-3-yl)-1H-benzimidazole ligands

2014 ◽  
Vol 70 (5) ◽  
pp. 488-492
Author(s):  
Xiao-Hua Chen ◽  
Hua Huang ◽  
Ming-Xing Yang ◽  
Li-Juan Chen ◽  
Shen Lin
Keyword(s):  
Hydrogen Bonding ◽  
Layer Structure ◽  
Three Dimensional ◽  
Water Molecules ◽  
Dimensional Chain ◽  
One Dimensional ◽  
Hydrogen Bonding Interactions ◽  
Dimensional Network ◽  
Complex Forms ◽  
Coordinated Water

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.

scholarly journals Crystal structure of poly[[hexaaquatris(μ-3,6-dioxocyclohexa-1,4-diene-1,4-diolato)dierbium(III)] octadecahydrate]

2019 ◽  
Vol 75 (1) ◽  
pp. 64-67
Author(s):  
Nutcha Ponjan ◽  
Kenika Kodchasanthong ◽  
Suwadee Jiajaroen ◽  
Kittipong Chainok
Keyword(s):  
Rotation Axis ◽  
Three Dimensional ◽  
Lanthanide Complex ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Two Dimensional ◽  
Hydrogen Bonding Interactions ◽  
Coordinated Water ◽  
Trigonal Prismatic ◽  
Oxygen Atoms

The title lanthanide complex, [Er2(C6H2O4)3(H2O)6]·18H2O, is isostructural with its La, Gd, Yb and Lu analogues. The Er3+ ion, located on a threefold rotation axis, is nine-coordinated in a distorted tricapped trigonal–prismatic geometry, which is completed by six oxygen atoms from three dhbq2− ligands and three oxygen atoms from coordinated water molecules. Each dhbq2− ligand acts in a μ2-bis(bidentate) bridging mode to connect two Er3+ ions to form honeycomb (6,3) two-dimensional sheets extending in the ab plane, having an Er...Er separation of 8.7261 (2) Å. In the crystal, extensive O—H...O hydrogen-bonding interactions involving the coordinated water molecules and the water molecules of crystallization, as well as the oxygen atoms of the dhbq2− ligands, generate an overall three-dimensional supramolecular network.

Aquabis(4-formylbenzoato)-κ2 O,O′;κO-(1,10-phenanthroline-κ2 N,N′)cadmium(II)

2007 ◽  
Vol 63 (11) ◽  
pp. m2694-m2694 ◽  
Author(s):  
Zhao-Peng Deng ◽  
Shan Gao ◽  
Li-Hua Huo ◽  
Hui Zhao
Keyword(s):  
Hydrogen Bonding ◽  
Layer Structure ◽  
Title Complex ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Complex Molecules ◽  
Hydrogen Bonding Interactions ◽  
Trigonal Prismatic Coordination ◽  
Phenanthroline Ligand ◽  
Trigonal Prismatic

The CdII atom in the title complex, [Cd(C8H5O3)2(C12H8N2)(H2O)], is coordinated by three O atoms of two formylbenzoate ligands, two N atoms of a 1,10-phenanthroline ligand and one water molecule, giving rise to a trigonal–prismatic coordination geometry. Adjacent complex molecules are linked into a two-dimensional layer structure via hydrogen-bonding interactions.

scholarly journals Crystal structure of poly[diaquabis(μ5-benzene-1,3-dicarboxylato)(N,N-dimethylformamide)cadmium(II)disodium(I)]

2017 ◽  
Vol 73 (11) ◽  
pp. 1599-1602 ◽  
Author(s):  
Matimon Sangsawang ◽  
Kittipong Chainok ◽  
Nanthawat Wannarit
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Water Molecules ◽  
Asymmetric Unit ◽  
Carboxylate Groups ◽  
Benzene Rings ◽  
Coordinated Water ◽  
Coordinate Geometry

The title compound, [CdNa2(C8H4O4)2(C3H7NO)(H2O)2]nor [CdNa2(1,3-bdc)2(DMF)(H2O)2]n, is a new CdII–NaIheterobimetallic coordination polymer. The asymmetric unit consists of one CdIIatom, two NaIatoms, two 1,3-bdc ligands, two coordinated water molecules and one coordinated DMF molecule. The CdIIatom exhibits a seven-coordinate geometry, while the NaIatoms can be considered to be pentacoordinate. The metal ions and their symmetry-related equivalents are connectedviachelating–bridging carboxylate groups of the 1,3-bdc ligands to generate a three-dimensional framework. In the crystal, there are classical O—H...O hydrogen bonds involving the coordinated water molecules and the 1,3-bdc carboxylate groups and π–π stacking between the benzene rings of the 1,3-bdc ligands present within the frameworks.

scholarly journals Diaquabis{4-[(pyridin-2-yl)methylideneamino]benzenesulfonato-κ2 N,N′}nickel(II) tetrahydrate

2012 ◽  
Vol 68 (6) ◽  
pp. m809-m810 ◽  
Author(s):  
Chao-Zhu Li ◽  
Xue-Ren Huang
Keyword(s):  
Hydrogen Bonding ◽  
Three Dimensional ◽  
Title Complex ◽  
Water Molecules ◽  
Framework Structure ◽  
Distorted Octahedral Environment ◽  
Hydrogen Bonding Interactions ◽  
Octahedral Environment ◽  
Distorted Octahedral ◽  
Coordinated Water

In the title complex, [Ni(C12H9N2O3S)2(H2O)2]·4H2O, the NiII ion is coordinated by four N atoms from two bidentate chelating 4-[(pyridin-2-yl)methylideneamino]benzenesulfonate ligands and two O atoms from cis-related water molecules in a slightly distorted octahedral environment [Ni—N = 2.071 (3)–2.121 (3) Å and Ni—O = 2.071 (2) and 2.073 (3) Å]. In the crystal, the coordinated water molecules and the four water molecules of solvation are involved in intermolecular O—H...O hydrogen-bonding interactions with water and sulfonate O-atom acceptors, giving a three-dimensional framework structure.

scholarly journals V2O2F4(H2O)2·H2O: a new V4+layer structure related to VOF3

2016 ◽  
Vol 72 (1) ◽  
pp. 80-83 ◽  
Author(s):  
Cameron Black ◽  
Philip Lightfoot
Keyword(s):  
Ionic Liquids ◽  
Title Compound ◽  
Solvothermal Synthesis ◽  
Layer Structure ◽  
Three Dimensional ◽  
Water Molecules ◽  
Frustrated Magnets ◽  
Two Dimensional ◽  
Triangular Lattices ◽  
Solvothermal Conditions

VIVoxyfluorides are of interest as frustrated magnets. The successful synthesis of two-dimensionally connected vanadium(IV) oxyfluoride structures generally requires the use of ionic liquids as solvents. During solvothermal synthesis experiments aimed at producing two- and three-dimensional vanadium(IV) selenites with triangular lattices, the title compound, diaquatetra-μ-fluorido-dioxidodivanadium(IV) monohydrate, V2O2F4(H2O)2·H2O, was discovered and features a new infinite V4+-containing two-dimensional layer comprised of fluorine-bridged corner- and edge-sharing VOF4(H2O) octahedral building units. The synthesis was carried out under solvothermal conditions. The V4+centre exhibits a typical off-centring, with a short V=O bond and an elongatedtrans-V—F bond. Hydrogen-bonded water molecules occur between the layers. The structure is related to previously reported vanadium oxyfluoride structures, in particular, the same layer topology is seen in VOF3.

scholarly journals Crystal structure ofcatena-poly[bis(formato-κO)bis[μ2-1,1′-(1,4-phenylene)bis(1H-imidazole)-κ2N3:N3′]cobalt(II)]

2015 ◽  
Vol 71 (9) ◽  
pp. m156-m157
Author(s):  
Guo-Wang Xu ◽  
Ye-Nan Wang ◽  
Hong-Xu Xia ◽  
Zhong-Long Wang
Keyword(s):  
Crystal Structure ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Supramolecular Network ◽  
Nitrate Hexahydrate ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Hydrogen Bonding Interactions ◽  
Block Shaped Crystal

A red block-shaped crystal of the title compound, [Co(HCOO)2(C12H10N4)2]n, was obtained by the reaction of cobalt(II) nitrate hexahydrate, formic acid and 1,1′-(1,4-phenylene)bis(1H-imidazole) (bib) molecules. The asymmetric unit consists of one CoIIcation, one formate ligand and two halves of a bib ligand. The central CoIIcation, located on an inversion centre, is coordinated by two carboxylate O atoms and four N atoms from bib ligands, completing an octahedral coordination geometry. The CoIIcentres are bridged by bib ligands, giving a two-dimensional net. Topologically, taking the CoIIatoms as nodes and the bib ligands as linkers, the two-dimensional structure can be simplified as a typicalsql/Shubnikov tetragonal plane network. The structure features C—H...O hydrogen-bonding interactions between formate and bib ligands, resulting in a three-dimensional supramolecular network.

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