Synthesis, crystal structure and magnetism of a one-dimensional Cu(II) coordination polymer with monodeprotonated 2,2′-bypyridine-3,3′-diol as bridging ligand

2008 ◽  
Vol 61 (21) ◽  
pp. 3501-3507 ◽  
Author(s):  
Hong Li ◽  
Chao Hou ◽  
Jing-Min Shi ◽  
Shi-Guo Zhang
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
One Dimensional ◽  
Bridging Ligand

scholarly journals Crystal structure ofcatena-poly[[trimethyltin(IV)]-μ-2-(2-nitrophenyl)acetato-κ2O:O′]

2015 ◽  
Vol 71 (3) ◽  
pp. m52-m53 ◽  
Author(s):  
Muhammad Danish ◽  
Muhammad Nawaz Tahir ◽  
Sana Iftikhar ◽  
Muhammad Asam Raza ◽  
Muhammad Ashfaq
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Dihedral Angles ◽  
Screw Axis ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Metal Atoms ◽  
Benzene Rings ◽  
Trigonal Pyramid ◽  
Title One

In the title one-dimensional coordination polymer, [Sn(CH3)3(C8H6NO4)]n, the SnIVatom is coordinated by three methyl C atoms and two carboxylate O atoms (one symmetry generated), resulting in an almost regular SnC3O2trigonal pyramid. The C atoms occupy the equatorial sites and the O atoms occupy the axial sites. In the ligand, the dihedral angles between the benzene ring and the pendant acetate and nitro groups are 57.7 (1) and 36.9 (3)°, respectively. The bridging ligand leads to [010] chains in the crystal, with adjacent metal atoms related by a 21screw axis. A weak π–π interaction exists between the centroids of symmetry-related benzene rings at a distance of 3.9131 (19) Å.

Synthesis, IR spectrum, thermal behaviour and crystal structure of a novel one-dimensional cyano-bridged zinc(II)/nickel(II) complex

2005 ◽  
Vol 220 (1) ◽  
Author(s):  
Ahmet Karadag ◽  
Hümeyra Pasaoglu ◽  
Gökhan Kastas ◽  
Orhan Büyükgüngör
Keyword(s):  
Crystal Structure ◽  
Thermal Analysis ◽  
Coordination Polymer ◽  
Single Crystal ◽  
Ir Spectrum ◽  
Polymeric Chain ◽  
X Ray Diffraction ◽  
Bimetallic Complex ◽  
One Dimensional ◽  
X Ray

AbstractThe cyano-bridged heteronuclear coordination polymer of zinc(II)/nickel(II) has been prepared by N-(2-hydroxyethyl)-ethylendiamine (hydet-en), alternatively named 2-(2-aminoethylamino)-ethanol and characterised by IR and thermal analysis. In the bimetallic complex, the decomposition of hydet-en ligands is seen to be endothermic whereas that of the cyano ligands is found to be exothermic. The crystal structure of the complex has been determined by single-crystal X-ray diffraction. The crystal structure of the zinc(II)-nickel(II) complex consists of a one-dimensional polymeric chain –Zn(hydet-en)

scholarly journals A ladder coordination polymer based on Ca2+and (4,5-dicyano-1,2-phenylene)bis(phosphonic acid): crystal structure and solution-state NMR study

2016 ◽  
Vol 72 (9) ◽  
pp. 685-691
Author(s):  
Nutalapati Venkatramaiah ◽  
Ricardo F. Mendes ◽  
Artur M. S. Silva ◽  
João P. C. Tomé ◽  
Filipe A. Almeida Paz
Keyword(s):  
Crystal Structure ◽  
Coordination Polymer ◽  
Phosphonic Acid ◽  
Cyano Group ◽  
Functional Materials ◽  
One Dimensional ◽  
Solution State ◽  
Nmr Study ◽  
Wide Range ◽  
Organic Linker

The preparation of coordination polymers (CPs) based on either transition metal centres or rare-earth cations has grown considerably in recent decades. The different coordination chemistry of these metals allied to the use of a large variety of organic linkers has led to an amazing structural diversity. Most of these compounds are based on carboxylic acids or nitrogen-containing ligands. More recently, a wide range of molecules containing phosphonic acid groups have been reported. For the particular case of Ca2+-based CPs, some interesting functional materials have been reported. A novel one-dimensional Ca2+-based coordination polymer with a new organic linker, namely poly[[diaqua[μ4-(4,5-dicyano-1,2-phenylene)bis(phosphonato)][μ3-(4,5-dicyano-1,2-phenylene)bis(phosphonato)]dicalcium(II)] tetrahydrate], {[Ca2(C8H4N2O6P2)2(H2O)2]·4H2O}n, has been prepared at ambient temperature. The crystal structure features one-dimensional ladder-like∞1[Ca2(H2cpp)2(H2O)2] polymers [H2cpp is (4,5-dicyano-1,2-phenylene)bis(phosphonate)], which are created by two distinct coordination modes of the anionic H2cpp2−cyanophosphonate organic linkers: while one molecule is only bound to Ca2+cationsviathe phosphonate groups, the other establishes an extra single connectionviaa cyano group. Ladders close pack with water molecules through an extensive network of strong and highly directional O—H...O and O—H...N hydrogen bonds; the observed donor–acceptor distances range from 2.499 (5) to 3.004 (6) Å and the interaction angles were found in the range 135–178°. One water molecule was found to be disordered over three distinct crystallographic positions. A detailed solution-state NMR study of the organic linker is also provided.

scholarly journals catena-Poly[[[4-amino-3,5-bis(pyridin-2-yl)-4H-1,2,4-triazole-κ2N1,N5](dicyanamido-κN)copper(II)]-μ2-dicyanamido-κ2N:N′]: coordination polymer chains linked into a bilayer by hydrogen bonds and π–π stacking interactions

2014 ◽  
Vol 70 (4) ◽  
pp. 359-363 ◽  
Author(s):  
Zouaoui Setifi ◽  
Fatima Setifi ◽  
Mohamed Saadi ◽  
Djamil-Azzeddine Rouag ◽  
Christopher Glidewell
Keyword(s):  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Polymer Chains ◽  
Stacking Interactions ◽  
Terminal Ligand ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Pyramidal Geometry ◽  
Π Stacking ◽  
Square Pyramidal Geometry

In the title compound, [Cu(C2N3)2(C12H10N6)]nor [Cu(dca)2(abpt)]n, where abpt is 4-amino-3,5-bis(pyridin-2-yl)-4H-1,2,4-triazole and dca is the dicyanamide anion, the CuIIcentre is five-coordinate with an approximately square-pyramidal geometry. One of the two dicyanamide ligands is a terminal ligand, but the other one acts as a μ1,5-bridging ligand between pairs of CuIIcentres, so generating a one-dimensional coordination polymer. A combination of N—H...N and C—H...N hydrogen bonds, augmented by π–π stacking interactions, links the coordination polymer chains into a bilayer structure. Comparisons are made with some related CuIIcomplexes containing dca ligands and heteroaromatic co-ligands.

scholarly journals catena-Poly[[(dichloridozinc)-μ-4,4′-bis(1H-imidazol-1-yl)biphenyl-κ2N3:N3′] 0.25-hydrate]

2012 ◽  
Vol 68 (4) ◽  
pp. m406-m406
Author(s):  
Yong-Xia Ning ◽  
Wen Fan ◽  
Gang Xie
Keyword(s):  
Coordination Polymer ◽  
Water Molecule ◽  
Chloride Ions ◽  
Dihedral Angles ◽  
One Dimensional ◽  
Bridging Ligand ◽  
Polymeric Chains ◽  
Benzene Rings ◽  
Title One ◽  
Biphenyl Ligands

In the title one-dimensional coordination polymer, {[ZnCl2(C18H14N4)]·0.25H2O}n, the ZnIIatom is coordinated by two chloride ions and two 4,4′-bis(1H-imidazol-1-yl)biphenyl ligands, generating a distorted tetrahedral ZnCl2N2geometry. The dihedral angle between the benzene rings of the ligand is 51.0 (1)° and the dihedral angles between the benzene rings and their attached imidazole rings are 18.7 (2) and 45.9 (1)°. The bridging ligand leads to [10-1] polymeric chains in the crystal and the disordered water molecule (occupancy 0.25) forms O—H...Cl hydrogen bonds.

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