Diaquabis[5-(pyrimidin-2-yl-κN)tetrazolato-κN 1]copper(II)

2007 ◽  
Vol 63 (11) ◽  
pp. m2718-m2719 ◽  
Author(s):  
Mei-Fang Jin ◽  
Yu-E Qiu ◽  
Xiu-Ling Zhang
Keyword(s):  
Water Molecules ◽  
Coordination Geometry ◽  
Chelating Ligands ◽  
Two Dimensional ◽  
Asymmetric Unit ◽  
Special Position ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

The title compound, [Cu(C5H3N6)2(H2O)2], is isostructural with the manganese(II) analogue, but different from the two-dimensional structures of the zinc(II), iron(II), cobalt(II) and nickel(II) complexes with the same 5-(pyrimidin-2-yl)tetrazolate ligand. Each of the two symmetry-independent but structurally similar mononuclear molecules in the crystallographic asymmetric unit occupies a special position with the CuII atom on an inversion centre. Both CuII atoms have a highly distorted octahedral coordination geometry formed by two trans water molecules and two chelating ligands. Intermolecular O—H...N hydrogen bonds are present, which lead to the formation of a two-dimensional network.

scholarly journals catena-Poly[[diaquabis(1H-imidazole-κN3)cobalt(II)]-μ-2,3,5,6-tetrachloroterephthalato-κ2O1:O4]

2012 ◽  
Vol 68 (4) ◽  
pp. m368-m368
Author(s):  
Chang-Ge Zheng ◽  
Peng Zhang ◽  
Ping Li ◽  
Pei-Pei Zhang
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
A Chain

In the title compound, [Co(C8Cl4O4)(C3H4N2)2(H2O)2]n, the CoIIion displays a distorted octahedral coordination geometry with two O atoms from two monodentate tetrachloroterephthalate dianions, two N atoms from two imidazole molecules and two O atoms from two water molecules. The CoIIions are connectedviathe tetrachloroterephthalate dianions into a chain running along the crystallographic [110] direction. Adjacent chains are linked into a two-dimensional network arranged parallel to (010) by classical N—H...O and O—H...O hydrogen bonds.

scholarly journals Crystal structure of (2-amino-7-methyl-4-oxidopteridine-6-carboxylato-κ3O4,N5,O6)aqua(1,10-phenanthroline-κ2N,N′)zinc trihydrate

2015 ◽  
Vol 71 (9) ◽  
pp. m162-m163
Author(s):  
Siddhartha S. Baisya ◽  
Baidyanath Ghosh ◽  
Parag S. Roy
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Carboxylate Ligand ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

In the title compound, [Zn(C8H5N5O3)(C12H8N2)(H2O)]·3H2O, a tridentate 2-amino-7-methyl-4-oxidopteridine-6-carboxylate ligand, a bidentate ancillary 1,10-phenanthroline (phen) ligand and a water molecule complete a distorted octahedral coordination geometry around the ZnIIatom. The pterin ligand forms two chelate rings. The phen and pterin ring systems are nearly perpendicular [dihedral angle = 85.16 (5)°]. Classical N—H...O, O—H...N and O—H...O hydrogen bonds and weak C—H...O hydrogen bonds link the complex molecules and lattice water molecules into a three-dimensional network. π–π stacking contacts are observed as well, with centroid-to-centroid distances of 3.5679 (14), 3.7004 (14), 3.6641 (15), 3.6974 (13) and 3.3412 (12) Å.

scholarly journals Bis(4′-chloro-2,2′:6′,2′′-terpyridine-κ3 N,N′,N′′)ruthenium(II) dichloride dihydrate

2012 ◽  
Vol 68 (6) ◽  
pp. m777-m778 ◽  
Author(s):  
Ying Wang ◽  
Rui Jiao ◽  
Xiang-Lei Qiu ◽  
Jian Wang ◽  
Wei Huang
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Maximum Deviation ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
Terpyridine Ligands

In the cation of the title compound, [Ru(C15H10ClN3)2]Cl2·2H2O, the metal atom exhibits a distorted octahedral coordination geometry provided by the N atoms of two tridentate terpyridine ligands. The ligands are approximately planar [maximum deviation = 0.156 (5) Å] and form a dihedral angle of 87.0 (3)°. In the crystal, the cations, anions and water molecules are linked into a three-dimensional network by C—H...Cl, C—H...O and O—H...Cl hydrogen bonds.

scholarly journals Bis(5-amino-1H-tetrazole-κN4)diaqua(oxalato-κ2O1,O2)cadmium

2013 ◽  
Vol 69 (12) ◽  
pp. m645-m646
Author(s):  
Qian Liang ◽  
Yulin Wang ◽  
Yan Zhao ◽  
Gaojuan Cao
Keyword(s):  
Three Dimensional ◽  
Title Complex ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Oxalate Ligand ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

In the monomeric title complex, [Cd(C2O4)(CH3N5)2(H2O)2], the CdIIion exhibits a distorted octahedral coordination geometry, with the equatorial plane defined by two O atoms from an oxalate ligand and two N atoms from two 5-amino-1H-tetrazole ligands; the axial sites are occupied by two water molecules, with longer Cd—O bond lengths. An intramolecular N—H...O hydrogen bond occurs. In the crystal, N—H...O as well as O—H...O and O—H...N hydrogen bonds (some of which are bifurcated) link the complex molecules into a three-dimensional network.

scholarly journals Crystal structure of tetraaquabis(3,5-diamino-4H-1,2,4-triazol-1-ium)cobalt(II) bis[bis(pyridine-2,6-dicarboxylato)cobaltate(II)] dihydrate

2015 ◽  
Vol 71 (6) ◽  
pp. m139-m140 ◽  
Author(s):  
Atim Johnson ◽  
Justina Mbonu ◽  
Zahid Hussain ◽  
Wan-Sin Loh ◽  
Hoong-Kun Fun
Keyword(s):  
Three Dimensional ◽  
Water Molecules ◽  
Anionic Complex ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Cationic Complex ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
The Mean

The asymmetric unit of the title compound, [Co(C2H6N5)2(H2O)4][Co(C7H3NO4)2]2·2H2O, features 1.5 CoIIions (one anionic complex and one half cationic complex) and one water molecule. In the cationic complex, the CoIIatom is located on an inversion centre and is coordinated by two triazolium cations and four water molecules, adopting an octahedral geometry where the N atoms of the two triazolium cations occupy the axial positions and the O atoms of the four water molecules the equatorial positions. The two triazole ligands are parallel offset (with a distance of 1.38 Å between their planes). In the anionic complex, the CoIIion is six-coordinated by two N and four O atoms of the two pyridine-2,6-dicarboxylate anions, exhibiting a slightly distorted octahedral coordination geometry in which the mean plane of the two pyridine-2,6-dicarboxylate anions are almost perpendicular to each other, making a dihedral angle of 85.87 (2)°. In the crystal, molecules are linked into a three-dimensional networkviaC—H...O, C—H...N, O—H...O and N—H...O hydrogen bonds.

scholarly journals Crystal structure ofmer-tris{2,6-difluoro-3-[5-(2-fluorophenyl)pyridin-2-yl-κN]pyridin-4-yl-κC4}iridium(III) dichloromethane hemisolvaten-hexane hemisolvate

2017 ◽  
Vol 73 (12) ◽  
pp. 1952-1955 ◽  
Author(s):  
Youngjin Kang ◽  
Ki-Min Park ◽  
Jinho Kim
Keyword(s):  
Title Compound ◽  
Average Distance ◽  
Solvent Molecule ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral ◽  
Solvent Molecules

The asymmetric unit of the title compound, [Ir(C17H11F2N2)3]·0.5CH3(CH2)4CH3·0.5CH2Cl2, comprises one IrIIIatom, three 2,6-difluoro-3-[5-(2-fluorophenyl)pyridin-2-yl]pyridin-4-yl ligands and half each of ann-hexane and a dichloromethane solvent molecule located about crystallographic inversion centres. The IrIIIatom displays a distorted octahedral coordination geometry, having threeC,N-chelating 2,6-difluoro-3-[5-(2-fluorophenyl)pyridin-2-yl]pyridin-4-yl ligands arranged in a meridional manner. The IrIIIion lies almost in the equatorial plane [deviation = 0.0069 (15) Å]. The average distance [2.041 (3) Å] of Ir—C bonds is slightly shorter than that [2.076 (3) Å] of Ir—N bonds. A variety of intra- and intermolecular C—H...F and C—H...π hydrogen bonds, as well as intermolecular C—F...π interactions, contribute to the stabilization of the molecular and crystal structures, and result in the formation of a two-dimensional network parallel to theabplane. No interactions betweenn-hexane solvent molecules and the other components in the title compound are observed.

scholarly journals Diaquabis[N-(2-fluorobenzyl)-N-nitrosohydroxylaminato-κ2O,O′]nickel(II)

2014 ◽  
Vol 70 (3) ◽  
pp. m98-m99
Author(s):  
Olga Kovalchukova ◽  
Ali Sheikh Bostanabad ◽  
Adam Stash ◽  
Svetlana Strashnova ◽  
Igor Zyuzin
Keyword(s):  
Hydrogen Bonds ◽  
Organic Ligands ◽  
Water Molecules ◽  
Chelating Ligands ◽  
Two Dimensional ◽  
Organic Species ◽  
Octahedral Environment ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Coordinated Water

In the centrosymmetric title compound, [Ni(C7H6FN2O2)2(H2O)2], the NiIIcation is in a slightly distorted octahedral environment and is surrounded by four O atoms from the N—O groups of the organic ligands [Ni—O = 2.0179 (13) and 2.0283 (12) Å], and two water molecules [Ni—O = 2.0967 (14) Å]. TheN-(2-fluorobenzyl)-N-nitrosohydroxylaminate monoanions act as bidentate chelating ligands. In the crystal, the Ni cations in the columns are shifted in such a way that the coordinated water molecules are involved in the formation of hydrogen bonds with the O atoms of the organic species of neighbouring molecules. Thus, a two-dimensional network parallel to (100) is built up by hydrogen-bonded molecules.

Poly[[μ-(1-azaniumylethane-1,1-diyl)bis(hydrogen phosphonato)]sodium]: a powder X-ray diffraction study

2013 ◽  
Vol 69 (8) ◽  
pp. 815-818 ◽  
Author(s):  
Mwaffak Rukiah ◽  
Thaer Assaad
Keyword(s):  
Hydrogen Bonding ◽  
Rietveld Method ◽  
Three Dimensional ◽  
Coordination Geometry ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

The title two-dimensional coordination polymer, [Na(C2H8NO6P2)]n, was characterized using powder X-ray diffraction data and its structure refined using the Rietveld method. The asymmetric unit contains one Na+cation and one (1-azaniumylethane-1,1-diyl)bis(hydrogen phosphonate) anion. The central Na+cation exhibits distorted octahedral coordination geometry involving two deprotonated O atoms, two hydroxy O atoms and two double-bonded O atoms of the bisphosphonate anion. Pairs of sodium-centred octahedra share edges and the pairs are in turn connected to each other by the biphosphonate anion to form a two-dimensional network parallel to the (001) plane. The polymeric layers are connected by strong O—H...O hydrogen bonding between the hydroxy group and one of the free O atoms of the bisphosphonate anion to generate a three-dimensional network. Further stabilization of the crystal structure is achived by N—H...O and O—H...O hydrogen bonding.<!?tpb=18.7pt>

scholarly journals catena-Poly[(diaquastrontium)-bis{μ-5-[4-(1H-imidazol-1-yl)phenyl]tetrazolido}]

2012 ◽  
Vol 68 (4) ◽  
pp. m523-m524 ◽  
Author(s):  
Shao-Wei Tong ◽  
Shi-Jie Li ◽  
Wen-Dong Song ◽  
Dong-Liang Miao ◽  
Qi Deng
Keyword(s):  
Hydrogen Bonds ◽  
Title Complex ◽  
Water Molecules ◽  
Stacking Interactions ◽  
Two Dimensional ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Ring Centroid ◽  
Complex Polymer

In the title complex polymer, [Sr(C10H7N6)2(H2O)2]n, the SrIIatom lies on an inversion centre and is coordinated by four N atoms from two bidentate bridgingtrans-related 5-[4-(1H-imidazol-1-yl)phenyl]tetrazolide ligands [Sr—N = 2.387 (4) Å for the tetrazolide moiety and Sr—N = 2.273 (5) Å for the imidazole moiety], and by two O atoms from water molecules [Sr—O = 2.464 (4) Å], giving a distorted octahedral coordination. Pairs of ligand bridges link the complex units, forming chains which extend along [111] and are inter-associated through Owater—H...N hydrogen bonds, giving a two-dimensional network structure parallel to (001). Weak π–π stacking interactions between the benzene and imidazole rings are also present [minimum ring centroid separation = 3.691 (4) Å].

Diacetato[2,6-bis(2-pyridylamino)pyridine]nickel(II)

2006 ◽  
Vol 62 (4) ◽  
pp. m878-m880
Author(s):  
Yin-Qiu Liu ◽  
Xi-Rui Zeng ◽  
Han-Mao Kuang ◽  
Hua-Long Chen ◽  
Qiu-Yan Luo
Keyword(s):  
Pyridine Ring ◽  
Three Dimensional ◽  
Title Complex ◽  
Equatorial Position ◽  
Coordination Geometry ◽  
Complex Molecules ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral Coordination Geometry ◽  
Distorted Octahedral

The Ni atom in the title complex, [Ni(C2H3O2)2(C15H13N5)] or [Ni(CH3COO)2(tpdaH2)] (tpdaH2 is tripyridyldiamine), has a distorted octahedral coordination geometry formed by the tridentate tpdaH2 ligand and two acetate groups. The tpdaH2 ligand is mer-coordinated, with the N atom of the central pyridine ring in the equatorial position and the N atoms of the peripheral pyridine rings in the axial positions. The remaining three equatorial positions are occupied by the O atoms of two acetate anions. The H atoms of both NH groups of the tpdaH2 ligand are involved in strong hydrogen bonds with O atoms of adjacent complex molecules to form a three-dimensional network.

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