Topological analysis of the three-dimensional coordination polymer poly[(μ4-azido)[μ4-5-(pyridin-4-yl)tetrazolido]disilver(I)]

2014 ◽  
Vol 70 (8) ◽  
pp. 823-827
Author(s):  
Gao-Xiang Meng ◽  
Ya-Min Feng ◽  
Xin-Tang Huang

The title compound, [Ag2(C6H4N4)(N3)]n, was obtained under hydrothermal conditions at 433 K. The asymmetric unit of the orthorhombic space group (Pna21) consists of two Ag+cations, an anionic 5-(pyridin-4-yl)tetrazolide (4-ptz−) ligand and an anionic azide ligand. Both Ag+centres are coordinated by four N atoms, forming a distorted tetrahedral coordination environment. When all the component ions are viewed as 4-connected nodes, the whole three-dimensional network can be regarded topologically as a new kind of 4,4,4,4-connected net with the Schläfli symbol (4.85)(42.84)(43.83)2.

Author(s):  
Wen-Bing Wang ◽  
Shan-Shan Xu ◽  
Hong-Ji Chen

The title coordination polymer, [Zn(C6H4NO3)2]n, was prepared under hydrothermal conditions by the reaction of zinc nitrate with 5-hydroxynicotinic acid in the presence of malonic acid. In the structure, the ZnIIion is coordinated by two carboxylate O atoms and two pyridine N atoms of four 5-hydroxynicotinate ligands in a distorted tetrahedral coordination environment. The μ2-bridging mode of each anion leads to the formation of a three-dimensional framework structure. Intermolecular hydrogen bonds between the hydroxy groups of one anion and the non-coordinating carboxylate O atoms of neighbouring anions consolidate the crystal packing.


2014 ◽  
Vol 70 (3) ◽  
pp. m78-m78
Author(s):  
Martin Lutz

The title compound, [Co(CH3COO)2(CH4N2S)2], is isotypic with the corresponding ZnIIcomplex. The metal atom is in a distorted tetrahedral coordination environment with the two S atoms from two thiourea ligands and two O atoms from two acetate anions as the coordinating atoms. All H atoms of the thiourea ligands are involved in N—H...O and N—H...S hydrogen bonds, leading to a three-dimensional network.


2016 ◽  
Vol 72 (12) ◽  
pp. 1845-1847
Author(s):  
Nada Al-Najjar ◽  
Gregory A. Solan ◽  
Kuldip Singh

In the mononuclear title complex, [CuI(C2H3N)(C26H24N2)], the CuIion has a distorted tetrahedral coordination environment, defined by two N atoms of the chelating 2-(naphthalen-1-yl)-6-[(2,4,6-trimethylphenyl)imino]pyridine ligand, one N atom of an acetonitrile ligand and one iodide ligand. Within the complex, there are weak intramolecular C—H...N hydrogen bonds, while weak intermolecular C—H...I interactions between complex molecules, help to facilitate a three-dimensional network.


2013 ◽  
Vol 69 (9) ◽  
pp. 1017-1021
Author(s):  
Liu-cheng Gui ◽  
Guang-ming Liang ◽  
Hua-hong Zou ◽  
Zhong Hou

The title complexes, poly[[bis[μ2-2-ethyl-1-(pyridin-3-ylmethyl)-1H-benzimidazole-κ2N1:N3]copper(I)] tetrafluoroborate acetonitrile monosolvate], {[Cu(C15H15N3)2]BF4·CH3CN}n, (I), and poly[[bis[μ2-2-ethyl-1-(pyridin-3-ylmethyl)-1H-benzimidazole-κ2N1:N3]silver(I)] perchlorate methanol monosolvate], {[Ag(C15H15N3)2]ClO4·CH3OH}n, (II), are isostructural and exhibit one-dimensional ladder-like structures in which each asymmetric unit contains one metal ion (Cu+or Ag+), two 2-ethyl-1-(pyridin-3-ylmethyl)-1H-benzimidazole (bep) ligands, one counter-anion (tetrafluoroborate or perchlorate) and one interstitial molecule (acetonitrile or methanol). Each metal ion exhibits a distorted tetrahedral coordination geometry consisting of two pyridyl and two benzimidazole N atoms from four distinct ligands. Two metal ions are linked by two bep ligands to form a centrosymmetric 18-memberedM2(bep)2metallacycle, while adjacentM2(bep)2metallacycles are further interlinked by another two bep ligands resulting in a ladder-like array. In the extended structure, four adjacent ladder-like arrays are connected together through C—H...F, O—H...O and C—H...O hydrogen bonds between bep ligands, solvent molecules and counter-anions into a three-dimensional supramolecular structure.


2014 ◽  
Vol 70 (2) ◽  
pp. m32-m33 ◽  
Author(s):  
Andrew P. Purdy ◽  
Ray J. Butcher

The title compound, [K2Fe{OCH(CF3)2}4]n, was formed from the reaction of potassium hexafluoroisopropoxide with iron(II) chloride in toluene. The FeIIatom has a highly distorted tetrahedral coordination environment. All four of the non-equivalent hexafluoroisopropoxy O atoms link the FeIIatoms to one of the K+atoms in an alternating chain of Fe—O—K—O fused four-membered rings, with K—Fe distances of 3.715 (2) and 3.717 (2) Å. This K+atom is also bridged to eight of the F atoms. The other K+atom is bonded to only two of the O atoms, but has seven short K...F contacts, one of which links the chains into a three-dimensional arrangement. Weak hydrogen bonding between the lone H atoms on the hexafluoroisopropoxy groups and F atoms is also present. The crystal studied was refined as an inversion twin.


2014 ◽  
Vol 70 (2) ◽  
pp. 194-197 ◽  
Author(s):  
Jian Su ◽  
Liu-Di Yao ◽  
Jun Zhang ◽  
Jie-Ying Wu ◽  
Yu-Peng Tian

The title novel noncentrosymmetric metal–organic framework, [Zn2Cl4(C17H20N8)]n, was prepared solvothermally using the tetradentate tetrakis[(imidazol-1-yl)methyl]methane (tiym) linker in the presence of zinc nitrate under acidic conditions. The asymmetric unit contains one ZnIIcation, two Cl−anions and a quarter of each of two symmetry-independent tiym ligands. Each ZnIIcation is four-coordinated by two Cl−anions and two imidazole N atoms from two tiym ligands, forming a distorted tetrahedral coordination geometry. The tetrahedral tetradentate tiym linker has a quaternary C atom located on a crystallographic \overline{4} axis. With its four peripheral imidazole N atoms, the linkers are bridged by four [ZnCl2] subunits to generate a three-dimensional diamond topological framework, which is represented by the Schläfli symbol {66}. To the best of our knowledge, the title compound is the first example of a non-interpenetrating diamond net based on the tiym ligand.


2012 ◽  
Vol 68 (6) ◽  
pp. i45-i46
Author(s):  
Qihui Wu ◽  
Chunyu Du ◽  
Yang Lv ◽  
Guoliang Chen ◽  
Qinhe Pan

The title compound, [Co(NH3)6]2Cl5(NO3), was obtained under hydrothermal conditions. The asymmetric unit contains three Co3+ ions, one lying on an inversion center and the other two located at 2/m positions. All Co3+ ions are six-coordinated by NH3 molecules, forming [Co(NH3)6]3+ octahedra, with Co—N distances in the range 1.945 (4)–1.967 (3) Å. The nitrate N atom and one of the O atoms lie at a mirror plane. Among the Cl− anions, one lies in a general position, one on a twofold axis and two on a mirror plane. N—H...O and N—H...Cl hydrogen bonds link the cations and anions into a three-dimensional network.


2012 ◽  
Vol 68 (8) ◽  
pp. m1130-m1130
Author(s):  
Xiang Jing ◽  
Ya Luo

The title compound, [Mn(C6H4N5O)2(H2O)4], is isotypic with its Zn, Ni and Cd analogues reported recently. In the crystal, the MnIIcations are coordinated by four O atoms from four aqua ligands and two N atoms from two 5-(pyridin-4-yl)tetrazolide N5-oxide ligands in a distorted octahedral coordination environment. The asymmetric unit consists of one MnIIcation located on a crystallographic twofold axis, and two crystallographically independent water molecules and oneN-donor ligand in general positions. The discrete complex molecules are arranged in alternating rows parallel to [100] and are linked by O—H...N and O—H...O hydrogen bonds into a three-dimensional network.


IUCrData ◽  
2020 ◽  
Vol 5 (9) ◽  
Author(s):  
Nils Frerichs ◽  
Marc Schmidtmann ◽  
Rüdiger Beckhaus

The reaction of ZrCl4 with three equivalents of LiNCy2 (Cy is cyclohexyl) resulted in the formation of tris(dicyclohexylamido)zirconium chloride and the title compound, [Zr(C12H22N)4]. The latter is isotypic with its cerium(IV) analogue and crystallizes with three independent molecules in the asymmetric unit. One molecule is located about a twofold rotation axis, and the other two on fourfold inversion axes. In each molecule, the ZrIV atom has a distorted tetrahedral coordination environment. The crystal under investigation was twinned by inversion in a 1:1 ratio.


Author(s):  
Arunpatcha Nimthong-Roldán ◽  
Yupa Wattanakanjana ◽  
Jintana Rodkeaw

The title complex, [Ag3Br2(C25H22P2)3]Br·C7H8N2S, comprises a trinuclear [Ag3Br2(C25H22P2)3]+unit, a Br−anion and oneN,N′-dimethylthiourea molecule (ptu). Three AgIions are linkedviatwo μ3-bridging Br atoms, leading to a distorted triangular bipyramid with an Ag...Ag separation range of 3.1046 (6)–3.3556 (6) Å. The triangular Ag3arrangement is stabilized by six P atoms from three chelating bis(diphenylphosphanyl)methane (dppm) ligands. The AgIion presents a distorted tetrahedral coordination geometry. In the crystal, the bromide anion is connected to the ptu molecule through N—H...Br hydrogen bonds [graph-set motifR21(6)]. Each bromide/ptu aggregate links the complex ionviaC—H...S and C—H...Br hydrogen bonds, leading to the formation of a three-dimensional network. Two phenyl rings from two dppm ligands were modelled as disordered over two sites.


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