A Zinc(II) Coordination Polymer Based on a Chain of {Zn 2 O 7 } Bitetrahedra Bridged by 3‐Methoxybenzoates

2020 ◽  
Vol 5 (31) ◽  
pp. 9820-9824
Author(s):  
Pooja H. Bhargao ◽  
Venkatesha R. Hathwar ◽  
Bikshandarkoil R. Srinivasan
Keyword(s):  
Coordination Polymer ◽  
A Chain

Preparation and Structural Characterization of Chain Ni (II) Coordination Polymer Material

2011 ◽  
Vol 322 ◽  
pp. 369-372
Author(s):  
Zhi Xiang Ji
Keyword(s):  
Coordination Polymer ◽  
Polymer Material ◽  
Chain Structure ◽  
Monoclinic Space Group ◽  
Dimensional Chain ◽  
X Ray Diffraction ◽  
One Dimensional ◽  
X Ray ◽  
A Chain

A chain Ni (II) coordination polymer material was prepared and characterized by elemental analysis and single-crystal X-ray diffraction. It crystallizes in monoclinic, space group C2/c with a = 1.24348(13) nm, b = 1.29477(12) nm, c = 1.51480(17) nm and Dc = 1.401 g•cm-3. The results of structural analysis indicated that each Ni (II) ion forms six-coordinated with nitrogen atoms of pyridine and thiocyanate, and the Ni (II) coordination polymer material formed one dimensional chain structure by the interaction of pyridine rings.

Crystal-to-crystal transformation from a chain compound to a layered coordination polymer

2016 ◽  
Vol 45 (1) ◽  
pp. 89-92 ◽  
Author(s):  
Jinbiao Shi ◽  
Yan Zhang ◽  
Bin Zhang ◽  
Daoben Zhu
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Antiferromagnetic Interaction ◽  
Space Group ◽  
Cell Parameters ◽  
Crystal Transformation ◽  
A Chain ◽  
Chain Compound

Crystal-to-crystal transformation from a chain compound CuBr2(1,4-dioxane)2(H2O)2 to a layered coordination polymer (CuBr2)3(1,4-dioxane)2 was observed with changes of crystal colour, cell parameters, space group, crystal structure, coordination environments of Cu2+, and enhanced antiferromagnetic interaction.

scholarly journals Crystal structure of a pyrazine-2,3-dicarboxamide ligand and of its silver(I) nitrate complex, a three-dimensional coordination polymer

2017 ◽  
Vol 73 (6) ◽  
pp. 798-803
Author(s):  
Dilovan S. Cati ◽  
Helen Stoeckli-Evans
Keyword(s):  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Rotation Axis ◽  
Complex Molecule ◽  
Three Dimensional ◽  
Silver Ion ◽  
Ligand Molecule ◽  
Nitrate Anion ◽  
A Chain

The title ligand, C18H16N6O2·2H2O (L1) [N2,N3-bis(pyridin-4-ylmethyl)pyrazine-2,3-dicarboxamide], crystallized as a dihydrate. The molecule is U-shaped with the carboxamide groups beingcisto one another, making a dihedral angle of 81.6 (5)°. The terminal pyridine rings are inclined to one another by 58.5 (4)°. There is an intramolecular N—H...Npyrazinehydrogen bond present, forming anS(5) ring motif. In the crystal, adjacent molecules are linked by N—H...Ocarboxamidehydrogen bonds, forming a chain along [001]. A chain of hydrogen-bonded water molecules is linked to the chain of (L1) molecules by O—H...N hydrogen bonds, forming columns propagating along thecaxis. The columns are linked by C—H...O and C—H...N hydrogen bonds, forming a three-dimensional supramolecular structure. The reaction of ligand (L1) with silver(I) nitrate led to the formation of a new three-dimensional coordination polymer, {[Ag(C18H16N6O2)]NO3}n, poly[[[μ4-N2,N3-bis(pyridin-4-ylmethyl)pyrazine-2,3-dicarboxamide]silver(I)] nitrate] (I). The asymmetric unit is composed of half of one silver ion, located on a twofold rotation axis, half a ligand molecule and half a positionally disordered nitrate anion located about a twofold rotation axis. The full molecule of the ligand is generated by twofold rotational symmetry, with this twofold axis bisecting the Car—Carbonds of the pyrazine ring and the Ag—Ag bond. The carboxamide groups are nowtransto one another, making a dihedral angle of 65.8 (4)°. The two terminal pyridine rings are inclined to one another by 6.6 (3)°. Two ligands wrap around an Ag—Ag bond of 3.1638 (11) Å, forming a figure-of-eight-shaped complex molecule. Each silver ion is coordinated by two pyridine N atoms and by two carboxamide O atoms of neighbouring molecules, hence forming a three-dimensional framework. The nitrate anion is linked to the framework by N—H...O and C—H...O hydrogen bonds.

scholarly journals catena-Poly[barium(II)-μ2-(dimethyl sulfoxide)-κ2 O:O-bis(μ2-2,4,6-trinitrophenolato-κ4 O 2,O 1:O 1,O 6)]

IUCrData ◽  
2020 ◽  
Vol 5 (11) ◽  
Author(s):  
Bikshandarkoil R. Srinivasan ◽  
Neha U. Parsekar ◽  
Kedar U. Narvekar
Keyword(s):  
Coordination Polymer ◽  
Oxygen Atom ◽  
Dimethyl Sulfoxide ◽  
Point Group ◽  
Binding Mode ◽  
Group Symmetry ◽  
Site Symmetry ◽  
Cation Site ◽  
A Chain ◽  
The One

The asymmetric unit of the title barium coordination polymer, [Ba(C6H2N3O7)2(C2H6OS)] n , consists of a barium cation (site symmetry m) and a dimethyl sulfoxide (DMSO) ligand (point group symmetry m) and a 2,4,6-trinitrophenolate anion located in general positions. The S atom and the methyl group of DMSO are disordered over two sets of sites. The DMSO ligand bridges a pair of BaII atoms resulting in a chain extending parallel to the a axis. The unique 2,4,6-trinitrophenolate anion also bridges a pair of BaII ions via the phenolic oxygen atom, with each BaII being additionally bonded to an oxygen atom of an adjacent nitro group. The μ 2-monoatomic bridging binding mode of both types of ligands results in the formation of an infinite chain of face-sharing {BaO10} polyhedra flanked by the remaining parts of the 2,4,6-trinitrophenolato and DMSO ligands. In the one-dimensional coordination polymer, parallel chains are interlinked with the aid of C—H...O hydrogen bonds.

scholarly journals Crystal structure of the unusual coordination polymer catena-poly[[gold(I)-μ-1,2-bis(diphenylphosphinothioyl)ethane-κ2 S:S′] dibromidoaurate(I)]

2020 ◽  
Vol 76 (11) ◽  
pp. 1768-1770
Author(s):  
Christina Taouss ◽  
Marina Calvo ◽  
Peter G. Jones
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Title Compound ◽  
Polymeric Chain ◽  
Chain Polymer ◽  
Twofold Axis ◽  
A Chain ◽  
Aurophilic Interactions

In the title compound, {[Au(C26H24P2S2)][AuBr2]} n , the gold(I) centres of the cation are coordinated by the P=S groups of the disulfide ligands to form a chain polymer parallel to the c axis. Both independent gold atoms lie on the same twofold axis, and the midpoint of the H2C—CH2 bond lies on an inversion centre. The anions flank the polymeric chain; they are connected to it by short aurophilic interactions and C—H...Br contacts, and to each other by Br...Br contacts.

Synthesis, crystal structure and characterization of a three-dimensional CdII coordination polymer constructed from 2,5-bis(1H-1,2,4-triazol-1-yl)terephthalate

2018 ◽  
Vol 74 (2) ◽  
pp. 166-170 ◽  
Author(s):  
Li Meng ◽  
Miao-Li Zhu ◽  
Li-Ping Lu
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Three Dimensional ◽  
X Ray ◽  
Distorted Octahedral ◽  
Ft Ir ◽  
A Chain ◽  
Coordinated Water ◽  
Dimensional Crystal

Bifunctional organic ligands are very popular for the design of coordination polymers because they allow the formation of a great diversity of structures. In the title coordination polymer, the new bifunctional inversion-symmetric ligand 2,5-bis(1H-1,2,4-triazol-1-yl)terephthalic acid (abbreviated as H2bttpa) links CdII cations, giving rise to the three-dimensional CdII coordination polymer catena-poly[diaqua[μ4-2,5-bis(1H-1,2,4-triazol-1-yl)terephthalato-κ4 O 1:O 4:N 4:N 4′]cadmium(II)], [Cd(C12H6N6O4)(H2O)2] n or [Cd(bttpa)(H2O)2] n . The asymmetric unit consists of half a CdII cation, half a bttpa2− ligand and one coordinated water molecule. The CdII cation is located on a twofold axis and is hexacoordinated in a distorted octahedral environment of four O and two N atoms. Four different bttpa2− ligands contribute to this coordination, with two carboxylate O atoms in trans positions and two triazole N atoms in cis positions. Two aqua ligands in cis positions complete the coordination sphere. The fully deprotonated bttpa2− ligand sits about a crystallographic centre of inversion and links two CdII cations to form a chain in a μ2-terephthalato-κ2 O 1:O 4 bridge. This chain extends in the other two directions via the triazole heterocycles, producing a three-dimensional framework. O—H...O hydrogen bonds and weak C—H...N interactions stabilize the three-dimensional crystal structure. The FT–IR spectrum, X-ray powder pattern, thermogravimetric behaviour and solid-state photoluminescence of the title polymer have been investigated. The photoluminescence is enhanced and red-shifted with respect to the uncoordinated ligand.

Synthesis and Structural Characterization of a Cu(II) Coordination Polymer from N1,N2-Di(pyridin-4-yl)oxalamide

2014 ◽  
Vol 69 (9-10) ◽  
pp. 1045-1049
Author(s):  
Hai-Wei Kuai ◽  
Tao Hu ◽  
Ding-Yun Jiang ◽  
Yun-Hua Qian ◽  
Deng-Hao Li
Keyword(s):  
Hydrogen Bonding ◽  
Ir Spectroscopy ◽  
Coordination Polymer ◽  
Chain Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Triclinic System ◽  
A Chain ◽  
2D Network

Abstract The reaction of Cu(NO3)2·3H2O with N1,N2-di(pyridin- 4-yl)oxalamide (L) and KSCN in the presence of DMF by the layering method gives rise to a new complex [Cu(L2)(SCN)2(DMF)2]n (1). Complex 1 has been characterized by single-crystal and powder X-ray diffraction, IR spectroscopy, and elemental and thermogravimetric analyses. It crystallizes in the triclinic system with space group P1̅ and shows a chain structure. Delicate N-H···O hydrogen bonding exists in individual units, and adjacent chains are linked by intermolecular interactions, resulting in an extended 2D network.

A novel one-dimensional copper(II) coordination polymer and a trinuclear nickel(II) complex with a one-dimensional hydrogen-bonded structure

2013 ◽  
Vol 69 (11) ◽  
pp. 1373-1377 ◽  
Author(s):  
Xiao-Hua Chen ◽  
Shun-Yu Chen ◽  
Chun-Ling Xie ◽  
Qiong-Jie Wu
Keyword(s):  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Metal Ions ◽  
Octahedral Coordination ◽  
Coordination Geometry ◽  
Coordination Environment ◽  
One Dimensional ◽  
Imidazole Ligand ◽  
Square Planar ◽  
A Chain

In the CuIIcompoundcatena-poly[[copper(II)-μ-[2-({2-[2-(naphthalen-2-yloxy)-1-oxidoethylidene]hydrazin-1-ylidene}methyl)phenolato]] dimethylformamide monosolvate monohydrate], {[Cu(C19H14N2O3)]·C3H7NO·H2O}n, (I), the CuIIcation isO,N,O′-chelated by one ligand and furtherN,O-chelated by a second ligand, and exhibits a distorted square-pyramidal coordination environment. The ligand acts as an overall pentadentate bridge between two metal ions, thus forming a novel coordination polymer. In the trinuclear NiIIcompound diaquabis(1H-imidazole)bis[μ-2-oxido-N′-(1-oxido-2-phenoxyethylidene)benzohydrazidato]trinickel(II) dimethylformamide tetrasolvate, [Ni3(C15H11N2O4)2(C3H4N2)2(H2O)2]·4C3H7NO, (II), the three NiIIcations are directly linked by twotransdiazine (N—N) bridges and are strictly collinear by symmetry. The central NiIIcation, located on an inversion centre, is coordinated by two water O atoms and is furtherN,O-chelated by two 2-oxido-N′-(1-oxido-2-phenoxyethylidene)benzohydrazidate(3−) ligands in an elongated octahedral coordination geometry. The two terminal centrosymmetrically related NiIIcations are coordinated by an imidazole ligand andO,N,O′-chelated by a hydrazidate ligand in a distorted square-planar coordination geometry. Hydrogen bonds link individual molecules of (II) into a chain along [100].

Sign in / Sign up

Export Citation Format

Share Document