scholarly journals Crystal structure of tetrakis(μ2-(E)-2,4-dibromo-6-{[2-(pyridin-2-yl)ethyl]iminomethyl}phenolato)trizinc bis(perchlorate) acetonitrile disolvate

2018 ◽  
Vol 74 (9) ◽  
pp. 1380-1383 ◽  
Author(s):  
Ugochukwu Okeke ◽  
Raymond Otchere ◽  
Yilma Gultneh ◽  
Ray J. Butcher
Keyword(s):  
Rotation Axis ◽  
Three Dimensional ◽  
Halogen Bonding ◽  
Interspecies Interactions ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry ◽  
Metal Atoms ◽  
Distorted Octahedral ◽  
Phenolate Ligands ◽  
Solvent Molecules

The title compound, [Zn3(C14H11Br2N2O)4](ClO4)2·2CH3CN, crystallizes as a symmetrical trinuclear cation with all three metal atoms being located on a twofold rotation axis. It contains a tetrahedral ZnII atom that bridges two six-coordinate ZnII atoms. The complex contains N- and O-donor atoms of four tridentate 2,4-dibromo-6-{[2-(pyridin-2-yl)ethyl]iminomethyl}phenolate ligands. The ratio of ZnII atoms to ligands is 3:4. The two terminal ZnII cations adopt distorted octahedral geometries and the central ZnII cation adopts a distorted tetrahedral geometry. In the cation there are π–π interactions between the dibromophenyl rings, as well as halogen-bonding interactions between the dibromophenyl rings in the cation, which stabilize its conformation. In addition, there are C—H...O interactions between the anions and both the cations and solvent molecules as well as C—H...N interactions between the cation and solvent molecules. These interspecies interactions link the cations, anions and solvent molecules into a complex three-dimensional array

scholarly journals Crystal structure of an HgIIcoordination polymer with an unsymmetrical dipyridyl ligand:catena-poly[[[dichloridomercury(II)]-μ-N-(pyridin-4-ylmethyl)pyridin-3-amine-κ2N:N′] chloroform hemisolvate]

2016 ◽  
Vol 72 (11) ◽  
pp. 1513-1516 ◽  
Author(s):  
Suk-Hee Moon ◽  
Donghyun Kang ◽  
Ki-Min Park
Keyword(s):  
Crystal Structure ◽  
Rotation Axis ◽  
Solvent Molecule ◽  
Three Dimensional ◽  
Supramolecular Network ◽  
Asymmetric Unit ◽  
Tetrahedral Geometry ◽  
Π Interactions ◽  
Distorted Tetrahedral Geometry ◽  
Solvent Molecules

The asymmetric unit of the title compound, {[HgLCl2]·0.5CHCl3}n(L=N-(pyridin-4-ylmethyl)pyridin-3-amine, C11H11N3), contains one HgIIion, one bridgingLligand, two chloride ligands and a chloroform solvent molecule with half-occupancy that is disordered about a crystallographic twofold rotation axis. Each HgIIion is coordinated by two pyridine N atoms from two symmetry-relatedLligands and two chloride anions in a highly distorted tetrahedral geometry with bond angles falling in the range 99.05 (17)–142.96 (7)°. EachLligand bridges two HgIIions, forming polymeric zigzag chains propagating in [010]. In the crystal, the chains are linked by intermolecular N/C—H...Cl hydrogen bonds together with weak C—H...π interactions, resulting in the formation of a three-dimensional supramolecular network, which is further stabilized by C—Cl...π interactions between the solvent chloroform molecules and the pyridine rings ofL[chloride-to-centroid distances = 3.442 (11) and 3.626 (13) Å]. In addition, weak Cl...Cl contacts [3.320 (5) Å] between the chloroform solvent molecules and the coordinating chloride anions are also observed.

scholarly journals Bis(2-{[(9H-fluoren-2-yl)methylidene]amino}phenolato-κ2N,O)zinc methanol disolvate

2012 ◽  
Vol 68 (4) ◽  
pp. m504-m505 ◽  
Author(s):  
Young-Inn Kim ◽  
Sung-Jae Yun ◽  
Inn-Hye Hwang ◽  
Dae-Young Kim ◽  
Sung Kwon Kang
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Rotation Axis ◽  
Tetrahedral Geometry ◽  
Complex Molecules ◽  
Distorted Tetrahedral Geometry ◽  
Phenolate Ligands ◽  
The Mean ◽  
Solvent Molecules ◽  
Phenol Ring

In the title compound, [Zn(C20H14NO)2]·2CH3OH, the ZnIIatom lies on a crystallographic twofold rotation axis and is coordinated by two O atoms and two N atoms from two bidentate 2-{[(9H-fluoren-2-yl)methylidene]amino}phenolate ligands within a distorted tetrahedral geometry. The dihedral angle between the two chelate rings is 82.92 (5)°. In the coordinated ligand, the phenol ring is twisted at 30.22 (9)° from the mean plane of the fluorene ring. In the crystal, O—H...O hydrogen bonds link the complex molecules to the methanol solvent molecules.

scholarly journals Crystal structure of bis(acetato-κO)bis(pyridine-2-carboxamide oxime-κ2N,N′)cadmium ethanol disolvate

2014 ◽  
Vol 70 (9) ◽  
pp. 142-144 ◽  
Author(s):  
Jiyong Liu
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Mononuclear Complex ◽  
Complex Molecules ◽  
Distorted Octahedral Coordination ◽  
Hydrogen Bonding Interactions ◽  
Distorted Octahedral ◽  
Solvent Molecules

In the title compound, [Cd(CH3COO)2(C6H7N3O)2]·2C2H5OH, the CdIIatom, which lies on a twofold rotation axis, is coordinated by two monodentate acetate groups and twoN,N′-chelating pyridine-2-carboxamide oxime ligands, leading to a distorted octahedral coordination sphere. The mononuclear complex molecules are assembled into chains along thec-axis directionviaN—H...O hydrogen-bonding interactions. These chains are further assembled by O—H...O hydrogen bonds involving the ethanol solvent molecules into a three-dimensional supramolecular structure.

scholarly journals Crystal structure of bis[trans-(1,4,8,11-tetraazacyclotetradecane-κ4N)bis(thiocyanato-κN)chromium(III)] tetrachloridozincate from synchrotron data

2015 ◽  
Vol 71 (5) ◽  
pp. 540-543 ◽  
Author(s):  
Dohyun Moon ◽  
Keon Sang Ryoo ◽  
Jong-Ha Choi
Keyword(s):  
Crystal Packing ◽  
Rotation Axis ◽  
Complex Cation ◽  
Distorted Octahedral Geometry ◽  
Asymmetric Unit ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry ◽  
Hydrogen Bonding Interactions ◽  
Distorted Octahedral ◽  
The Mean

The structure of the title compound, [Cr(NCS)2(cyclam)]2[ZnCl4] (cyclam = 1,4,8,11-tetraazacyclotetradecane, C10H24N4), has been determined from synchrotron data. The asymmetric unit contains two independent halves of the CrIIIcomplex cations and half of a tetrachloridozincate anion. In each complex cation, the CrIIIatom is coordinated by the four N atoms of the cyclam ligand in the equatorial plane and by two N-bound NCS−anions in atransaxial arrangement, displaying a distorted octahedral geometry with crystallographic inversion symmetry. The mean Cr—N(cyclam) and Cr—N(NCS) bond lengths are 2.065 (4) and 1.995 (6) Å, respectively. The macrocyclic cyclam moieties adopt centrosymmetrictrans-III configurations with six- and five-membered chelate rings in chair andgaucheconfigurations, respectively. The [ZnCl4]2−anion, which lies about a twofold rotation axis, has a slightly distorted tetrahedral geometry. The crystal packing is stabilized by hydrogen-bonding interactions between the N—H groups of the cyclam ligands, the S atoms of the NCS−groups and the Cl−ligands of the anion.

Bis(N-benzoylglycinato)diimidazolecobalt(II)

2006 ◽  
Vol 62 (5) ◽  
pp. m1006-m1008 ◽  
Author(s):  
Danuta Dobrzyńska ◽  
Tadeusz Lis ◽  
Joanna Woźniak
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry ◽  
Imidazole Ligand ◽  
Dimensional Network

In the title compound, [Co(C9H8NO3)2(C3H4N2)2], the CoII atom, located on a twofold rotation axis, is coordinated by two N atoms and two O atoms in a distorted tetrahedral geometry. The imine groups from the hippurate anion as well as the imidazole ligand act as donors in N—H...O hydrogen bonds; the two intermolecular N—H...O hydrogen bonds create a three-dimensional network.

scholarly journals catena-Poly[2-methylpyridinium [tungstate-di-μ-selenido-silver-di-μ-selenido] 2-methylpyridine monosolvate]

2013 ◽  
Vol 69 (11) ◽  
pp. m608-m608
Author(s):  
Lu-Jun Zhou ◽  
Hua-Tian Shi ◽  
Chao Xu ◽  
Qun Chen ◽  
Qian-Feng Zhang
Keyword(s):  
Hydrogen Bonding ◽  
Metal Atom ◽  
Title Compound ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Polymeric Chain ◽  
Tetrahedral Geometry ◽  
Axis Direction ◽  
Distorted Tetrahedral Geometry ◽  
Compound C

The title compound, {(C6H8N)[AgWSe4]·C6H7N}n, consists of anionic [WAgSe4]nchains, 2-methylpyridinium cations and neutral 2-methylpyridine molecules. The Se atoms bridge the Ag and W atoms, forming a polymeric chain extending along theb-axis direction. Both the Ag and W atoms are located on a twofold rotation axis and each metal atom is coordinated by four Se atoms in distorted tetrahedral geometry. In the crystal, the 2-methylpyridinium cation and 2-methylpyridine molecule are linkedviaN—H...N hydrogen bonding. Weak C—H...Se interactions link the organic components and polymeric anions into a three-dimensional architecture.

scholarly journals Tris(ethylenediamine-κ2N,N′)nickel(II) bis(dimethyl phosphate)

2012 ◽  
Vol 68 (8) ◽  
pp. m1032-m1032 ◽  
Author(s):  
Masoud Rafizadeh ◽  
Hamid Reza Saadati Moshtaghin ◽  
Vahid Amani
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Tetrahedral Geometry ◽  
Distorted Tetrahedral Geometry ◽  
Dimethyl Phosphate ◽  
Dimensional Network ◽  
Distorted Octahedral

In the title compound, [Ni(C2H8N2)3][O2P(OCH3)2]2, the NiIIatom is six-coordinated in a distorted octahedral geometry by six N atoms from three ethylenediamine ligands. The P atoms of the anions adopt a distorted tetrahedral geometry. In the crystal, intermolecular N—H...O and C—H...O hydrogen bonds link the cations and anions into a three-dimensional network.

scholarly journals 2-Amino-5-chloropyridinium cis-diaquadioxalatochromate(III) sesquihydrate

2012 ◽  
Vol 68 (6) ◽  
pp. m824-m825 ◽  
Author(s):  
Ichraf Chérif ◽  
Jawher Abdelhak ◽  
Mohamed Faouzi Zid ◽  
Ahmed Driss
Keyword(s):  
Rotation Axis ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Lattice Water ◽  
Compound C ◽  
Hydrogen Bonding Interactions ◽  
Distorted Octahedral ◽  
Independent Lattice

In the crystal structure of the title compound, (C5H6ClN2)[Cr(C2O4)2(H2O)2]·1.5H2O, the CrIII atom adopts a distorted octahedral geometry being coordinated by two O atoms of two cis water molecules and four O atoms from two chelating oxalate dianions. The cis-diaquadioxalatochromate(III) anions, 2-amino-5-chloropyridinium cations and uncoordinated water molecules are linked into a three-dimensional supramolecular array by O—H...O and N—H...O hydrogen-bonding interactions. One of the two independent lattice water molecules is situated on a twofold rotation axis.

scholarly journals Crystal structure ofcatena-poly[[diaquabis(4-formylbenzoato-κO1)cobalt(II)]-μ-pyrazine-κ2N:N′]

2015 ◽  
Vol 71 (4) ◽  
pp. 339-341 ◽  
Author(s):  
Gülçin Şefiye Aşkın ◽  
Fatih Çelik ◽  
Nefise Dilek ◽  
Hacali Necefoğlu ◽  
Tuncer Hökelek
Keyword(s):  
Hydrogen Bonds ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Water Molecules ◽  
Carboxylate Group ◽  
Polymeric Compound ◽  
Distorted Octahedral Coordination ◽  
Linear Chains ◽  
Dimensional Network ◽  
Distorted Octahedral

In the title polymeric compound, [Co(C8H5O3)2(C4H4N2)(H2O)2]n, the CoIIatom is located on a twofold rotation axis and has a slightly distorted octahedral coordination sphere. In the equatorial plane, it is coordinated by two carboxylate O atoms of two symmetry-related monodentate formylbenzoate anions and by two N atoms of two bridging pyrazine ligands. The latter are bisected by the twofold rotation axis. The axial positions are occupied by two O atoms of the coordinating water molecules. In the formylbenzoate anion, the carboxylate group is twisted away from the attached benzene ring by 7.50 (8)°, while the benzene and pyrazine rings are oriented at a dihedral angle of 64.90 (4)°. The pyrazine ligands bridge the CoIIcations, forming linear chains running along theb-axis direction. Strong intramolecular O—H...O hydrogen bonds link the water molecules to the carboxylate O atoms. In the crystal, weak O—Hwater...Owaterhydrogen bonds link adjacent chains into layers parallel to thebcplane. The layers are linkedviaC—Hpyrazine...Oformylhydrogen bonds, forming a three-dimensional network. There are also weak C—H...π interactions present.

Bis[4-fluoro-N-(quinolin-8-yl)benzenesulfonamidato-κ2 N,N′]zinc(II) hemihydrate

2006 ◽  
Vol 62 (7) ◽  
pp. m1719-m1721 ◽  
Author(s):  
Luiz Everson da Silva ◽  
Antonio Carlos Joussef ◽  
Sabine Foro ◽  
Boris Schmidt
Keyword(s):  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Compound ◽  
Three Dimensional ◽  
Tetrahedral Geometry ◽  
Special Position ◽  
Twofold Axis ◽  
Distorted Tetrahedral Geometry ◽  
Dimensional Network

In the title compound, [Zn(C15H10FN2O2 S)2]·0.5H2O, the Zn atom has a distorted tetrahedral geometry, formed by the N atoms of the quinoline and the sulfonamide groups. The water molecule occupies a special position on a twofold axis. Intermolecular C—H...O hydrogen bonds to the sulfonyl O atoms link the molecules into a three-dimensional network.

Sign in / Sign up

Export Citation Format

Share Document