Poly[(nitrato-κO)tris(μ3-1H-1,2,4-triazolato)dizinc(II)]: a three-dimensional coordination polymer

2007 ◽  
Vol 63 (11) ◽  
pp. m2744-m2744
Author(s):  
Joseph M. Ellsworth ◽  
Mark D. Smith ◽  
Hans-Conrad zur Loye
Keyword(s):  
Coordination Polymer ◽  
Title Compound ◽  
Three Dimensional ◽  
The Other ◽  
Mirror Plane ◽  
Site Symmetry ◽  
Nitrate Anion ◽  
Asymmetric Unit

In the title compound, [Zn2(C2H2N3)3(NO3)], there are two unique Zn atoms, both with site symmetry m. One forms a ZnN3O tetrahedron and the other a ZnN6 octahedron. One and a half 1H-1,2,4-triazolate ligands, with the half-ligand located on a mirror plane, and a disordered nitrate anion complete the asymmetric unit of the structure. The polymeric connectivity is three-dimensional.

scholarly journals Bis[hexaamminecobalt(III)] pentachloride nitrate

2012 ◽  
Vol 68 (6) ◽  
pp. i45-i46
Author(s):  
Qihui Wu ◽  
Chunyu Du ◽  
Yang Lv ◽  
Guoliang Chen ◽  
Qinhe Pan
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
The Other ◽  
Mirror Plane ◽  
Inversion Center ◽  
Asymmetric Unit ◽  
Hydrothermal Conditions ◽  
Nitrate N ◽  
Dimensional Network

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.

scholarly journals A one-dimensional coordination polymer, catena-poly[[[[N-ethyl-N-(pyridin-4-ylmethyl)dithiocarbamato-κ2 S,S′]zinc(II)]-μ2-N-ethyl-N-(pyridin-4-ylmethyl)dithiocarbamato-κ3 S,S′:N] 4-methylpyridine hemisolvate]

2017 ◽  
Vol 73 (8) ◽  
pp. 1162-1166 ◽  
Author(s):  
Pavel Poplaukhin ◽  
Hadi D. Arman ◽  
Edward R. T. Tiekink
Keyword(s):  
Coordination Polymer ◽  
Title Compound ◽  
Solvent Molecule ◽  
Three Dimensional ◽  
The Other ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Apical Position ◽  
One Dimensional ◽  
Dithiocarbamate Ligand

The title compound, {[Zn(C9H11N2S2)2]·0.5C6H7N} n , comprises two independent, but chemically similar, Zn[S2CN(Et)CH2py]2 residues and a 4-methylpyridine solvent molecule in the asymmetric unit. The Zn-containing units are connected into a one-dimensional coordination polymer (zigzag topology) propagating in the [010] direction, with one dithiocarbamate ligand bridging in a μ2-κ3 mode, employing one pyridyl N and both dithiocarbamate S atoms, while the other is κ2-chelating. In each case, the resultant ZnNS4 coordination geometry approximates a square pyramid, with the pyridyl N atom in the apical position. In the crystal, the chains are linked into a three-dimensional architecture by methyl- and pyridyl-C—H...S, methylene-C—H...N(pyridyl) and pyridyl-C—H...π(ZnS2C) interactions. The connection between the chain and the 4-methylpyridine solvent molecule is of the type pyridyl-C—H...N(4-methylpyridine).

Poly[deca-μ2-cyanido-dicyanidobis(μ2-ethylenediamine)bis(ethylenediamine)tricadmium(II)dicobalt(III)]: a two-dimensional coordination polymer

2009 ◽  
Vol 65 (3) ◽  
pp. m118-m120
Author(s):  
Olha Sereda ◽  
Helen Stoeckli-Evans
Keyword(s):  
Coordination Polymer ◽  
Network Structure ◽  
General Position ◽  
Rotation Axis ◽  
Three Dimensional ◽  
The Other ◽  
Dimensional Structure ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Dimensional Network

The title coordination polymer, [Cd3Co2(CN)12(C2H8N2)4]n, has an infinite two-dimensional network structure. The asymmetric unit is composed of two crystallographically independent CdIIatoms, one of which is located on a twofold rotation axis. There are two independent ethylenediamine (en) ligands, one of which bis-chelates to the Cd atom that sits in a general position, while the other bridges this Cd atom to that sitting on the twofold axis. The Cd atom located on the twofold rotation axis is linked to four equivalent CoIIIatomsviacyanide bridges, while the Cd atom that sits in a general position is connected to three equivalent CoIIIatomsviacyanide bridges. In this way, a series of trinuclear, tetranuclear and pentanuclear macrocycles are linked to form a two-dimensional network structure lying parallel to thebcplane. In the crystal structure, these two-dimensional networks are linkedviaN—H...N hydrogen bonds involving an en NH2H atom and a cyanide N atom, leading to the formation of a three-dimensional structure. This coordination polymer is only the second example involving a cyanometallate where the en ligand is present in both chelating and bridging coordination modes.

A three-dimensional cadmium(II) coordination polymer with unequal homochiral double-stranded concentric helical chains

2015 ◽  
Vol 71 (4) ◽  
pp. 289-293 ◽  
Author(s):  
Wei Shi ◽  
Jian-Jun Liu ◽  
Xiang-Ping Ou ◽  
Chang-Cang Huang
Keyword(s):  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Cadmium Acetate ◽  
The Other ◽  
Acetate Anion ◽  
Asymmetric Unit ◽  
Hydrothermal Conditions ◽  
Helical Channel ◽  
Hydroxide Anion

A homochiral helical three-dimensional coordination polymer, poly[[(μ2-acetato-κ3O,O′:O)(hydroxido-κO)(μ4-5-nicotinamido-1H-1,2,3,4-tetrazol-1-ido-κ5N1,O:N2:N4:N5)(μ3-5-nicotinamido-1H-1,2,3,4-tetrazol-1-ido-κ4N1,O:N2:N4:N5)dicadmium(II)] 0.75-hydrate], {[Cd2(C7H5N6O)2(CH3COO)(OH)]·0.75H2O}n, was synthesized by the reaction of cadmium acetate,N-(1H-tetrazol-5-yl)isonicotinamide (H-NTIA), ethanol and H2O under hydrothermal conditions. The asymmetric unit contains two crystallographically independent CdIIcations, two deprotonated 5-nicotinamido-1H-1,2,3,4-tetrazol-1-ide (NTIA−) ligands, one acetate anion, one hydroxide anion and three independent partially occupied water sites. The two CdIIcations, with six-coordinated octahedral and seven-coordinated pentagonal bipyramidal geometries are located on general sites. The tetrazole group of one symmetry-independent NTIA−ligand links one of the independent CdIIcations into 61helical chains, while the other NTIA−ligand links the other independent CdIIcations into similar but unequal 61helical chains. These chains, with a pitch of 24.937 (5) Å, intertwine into a double-stranded helix. Each of the double-stranded 61helices is further connected to six adjacent helical chains through an acetate μ2-O atom and the tetrazole group of the NTIA−ligand into a three-dimensional framework. The helical channel is occupied by the isonicotinamide groups of NTIA−ligands and two helices are connected to each other through the pyridine N and carbonyl O atoms of isonicotinamide groups. In addition, N—H...O and O—H...N hydrogen bonds exist in the complex.

scholarly journals 2,2′-Bis{8-[(benzylamino)methylidene]-1,6-dihydroxy-5-isopropyl-3-methylnaphthalen-7(8H)-one}

2013 ◽  
Vol 69 (11) ◽  
pp. o1626-o1627
Author(s):  
Shukhrat M. Hakberdiev ◽  
Samat A. Talipov ◽  
Davranbek N. Dalimov ◽  
Bakhtiyar T. Ibragimov
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
The Other ◽  
Supramolecular Architecture ◽  
Asymmetric Unit ◽  
Ring Systems ◽  
Compound C ◽  
Phenyl Rings ◽  
Independent Molecules

The asymmetric unit of the title compound, C44H44N2O6, contains two independent molecules with similar conformations. The dihydronaphthalene ring systems are approximately planar [maximum deviations = 0.036 (2), 0.128 (2), 0.0.24 (2) and 0.075 (2) Å]. The dihedral angle between two dihydronaphthalene ring systems is 83.37 (4)° in one molecule and 88.99 (4)° in the other. The carbonyl O atom is linked with the adjacent hydroxy and imino groupsviaintramolecular O—H...O and N—H...O hydrogen bonds. In the crystal, molecules are linked through O—H...O hydrogen bonds into layers parallel to (001), and adjacent layers are further stacked by π–π interactions between dihydronaphthalene and phenyl rings into a three-dimensional supramolecular architecture. In the crystal, one of the isopropyl groups is disordered over two positions with an occupancy ratio of 0.684 (8):0.316 (8).

scholarly journals Crystal structure of strontium dinickel iron orthophosphate

2015 ◽  
Vol 71 (10) ◽  
pp. 1255-1258 ◽  
Author(s):  
Said Ouaatta ◽  
Abderrazzak Assani ◽  
Mohamed Saadi ◽  
Lahcen El Ammari
Keyword(s):  
Crystal Structure ◽  
Solid State ◽  
Solid State Reaction ◽  
Title Compound ◽  
Three Dimensional ◽  
The Other ◽  
Asymmetric Unit ◽  
Space Group ◽  
Edge Sharing Octahedra ◽  
Wyckoff Position

The title compound, SrNi2Fe(PO4)3, synthesized by solid-state reaction, crystallizes in an ordered variant of the α-CrPO4structure. In the asymmetric unit, two O atoms are in general positions, whereas all others atoms are in special positions of the space groupImma: the Sr cation and one P atom occupy the Wyckoff position 4e(mm2), Fe is on 4b(2/m), Ni and the other P atom are on 8g(2), one O atom is on 8h(m) and the other on 8i(m). The three-dimensional framework of the crystal structure is built up by [PO4] tetrahedra, [FeO6] octahedra and [Ni2O10] dimers of edge-sharing octahedra, linked through common corners or edges. This structure comprises two types of layers stacked alternately along the [100] direction. The first layer is formed by edge-sharing octahedra ([Ni2O10] dimer) linked to [PO4] tetrahedraviacommon edges while the second layer is built up from a strontium row followed by infinite chains of alternating [PO4] tetrahedra and FeO6octahedra sharing apices. The layers are held together through vertices of [PO4] tetrahedra and [FeO6] octahedra, leading to the appearance of two types of tunnels parallel to thea- andb-axis directions in which the Sr cations are located. Each Sr cation is surrounded by eight O atoms.

scholarly journals Bis[3-methyl-5-(pyridin-2-yl)-1H-pyrazol-4-yl] selenide methanol hemisolvate

2014 ◽  
Vol 70 (2) ◽  
pp. o127-o128
Author(s):  
Maksym Seredyuk ◽  
Natalia O. Sharkina ◽  
Elzbieta Gumienna-Kontecka ◽  
Anatoly A. Kapshuk
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
The Other ◽  
Dihedral Angles ◽  
Supramolecular Architecture ◽  
Asymmetric Unit ◽  
Compound C ◽  
Independent Molecules ◽  
Solvent Molecules

The asymmetric unit of the title compound, C18H16N6Se·0.5CH3OH, contains two independent molecules of bis[3-methyl-5-(pyridin-2-yl)-1H-pyrazol-4-yl] selenide with similar C—Se—C bond angles [99.30 (14) and 98.26 (13)°], and a methanol molecule of solvation. In one molecule, the dihedral angles between pyrazole and neighbouring pyridine rings are 18.3 (2) and 15.8 (2)°, and the corresponding angles in the other molecule are 13.5 (2) and 8.3 (2)°. In the crystal, the selenide and solvent molecules are linked by classical O—H...N and N—H...N hydrogen bonds, as well as by weak C—H...O and C—H...π interactions, forming a three-dimensional supramolecular architecture.

A new three-dimensional silver(I) coordination framework with a diamondoid topology constructed from 2-(pyridin-4-yl)-1H-imidazole-4,5-dicarboxylic acid

2013 ◽  
Vol 69 (5) ◽  
pp. 467-470 ◽  
Author(s):  
Zhi-He Deng ◽  
Zhen-Jian Peng ◽  
Jun Huang
Keyword(s):  
Thermal Stability ◽  
Dicarboxylic Acid ◽  
Silver Nitrate ◽  
Title Compound ◽  
Three Dimensional ◽  
The Other ◽  
Asymmetric Unit ◽  
Hydrothermal Conditions ◽  
Bridging Ligand ◽  
Coordination Framework

The title compound, poly[[μ4-5-carboxy-4-carboxylato-2-(pyridin-4-yl)-1H-imidazol-1-ido]disilver(I)], [Ag2(C10H5N3O4)]n, was synthesized by reacting silver nitrate with 2-(pyridin-4-yl)-1H-imidazole-4,5-dicarboxylic acid (H3PyIDC) under hydrothermal conditions. The asymmetric unit contains two crystallographically independent AgIcations and one unique HPyIDC2−anion. Both AgIcations are three-coordinated in distorted T-shaped coordination geometries. One AgIcation is coordinated by one N and two O atoms from two HPyIDC2−anions, while the other is bonded to one O and two N atoms from two HPyIDC2−anions. It is interesting to note that the HPyIDC2−group acts as a μ4-bridging ligand to link the AgIcations into a three-dimensional framework, which can be simplified as a diamondoid topology. The thermal stability and photoluminescent properties of the title compound have also been studied.

scholarly journals Poly[(μ4-decanedioato)cobalt(II)]

2014 ◽  
Vol 70 (5) ◽  
pp. m159-m159
Author(s):  
Bruno Giuseppe ◽  
Nicolò Francesco ◽  
Grassi Giovanni ◽  
Saccà Alessandro ◽  
Viviana Mollica Nardo
Keyword(s):  
Coordination Polymer ◽  
Title Compound ◽  
Three Dimensional ◽  
The Other ◽  
Dimensional Network ◽  
Tetrahedral Environment ◽  
Network Coordination

In the title compound, [Co(C10H16O4)]n, the CoIIatom is bonded in a slightly distorted tetrahedral environment by four O atoms from the bridging sebacate dications, comprising two separate half-ligands which lie across crystallographic inversion centres. In the three-dimensional network coordination polymer, there are two different spatial extensions of CoIIatoms, one with the CoIIatoms lying parallel to (100) [Co...Co = 4.653 (1) Å], the other lying parallel to (010) [Co...Co = 4.764 (1) Å].

scholarly journals Crystal structure of bis[dihydrobis(pyrazol-1-yl)borato-κ2 N 2,N 2′](1,10-phenanthroline-κ2 N,N′)zinc(II)

2019 ◽  
Vol 75 (8) ◽  
pp. 1112-1116 ◽  
Author(s):  
Sascha Ossinger ◽  
Christian Näther ◽  
Felix Tuczek
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
General Position ◽  
The Other ◽  
Site Symmetry ◽  
Asymmetric Unit ◽  
Cation Site ◽  
Rotation Symmetry ◽  
Phenanthroline Ligand ◽  
Phenanthroline Ligands

The asymmetric unit of the title compound, [Zn(C6H8N4B)2(C12H8N2)], comprises one half of a ZnII cation (site symmetry 2), one dihydrobis(pyrazol-1-yl)borate ligand in a general position, and one half of a phenanthroline ligand, the other half being completed by twofold rotation symmetry. The ZnII cation is coordinated in form of a slightly distorted octahedron by the N atoms of a phenanthroline ligand and by two pairs of N atoms of symmetry-related dihydrobis(pyrazol-1-yl)borate ligands. The discrete complexes are arranged into columns that elongate in the c-axis direction with a parallel alignment of the phenanthroline ligands, indicating weak π–π interactions.

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