scholarly journals Bis(μ-hydroxido-κ2O:O)bis[bis(5-carboxypyridine-2-carboxylato-κ2N,O2)iron(III)] dihydrate

2013 ◽  
Vol 69 (11) ◽  
pp. m625-m625
Author(s):  
Wenhai Cao
Keyword(s):  
Hydrogen Bonding ◽  
Binuclear Complex ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Dinuclear Complex ◽  
Distorted Octahedral Geometry ◽  
Supramolecular Network ◽  
Hydroxyl Groups ◽  
Hydrogen Bonding Interactions ◽  
Distorted Octahedral

The complete binuclear complex in [Fe2(C7H4NO4)4(OH)2]·2H2O, is generated by the application twofold symmetry. The FeIIIatom is coordinated by the O atoms of two bridging hydroxyl groups and by two N and two O atoms from two pyridine-2,5-dicarboxylato ligands, forming a distorted octahedral geometry. The Fe...Fe separation within the dinuclear complex is 3.0657 (4) Å. In the crystal, O—H...O and C—H...O hydrogen-bonding interactions connect the molecules into a three-dimensional supramolecular network.

scholarly journals Pentaaqua(1H-benzimidazole-5,6-dicarboxylato-κN3)cobalt(II) pentahydrate

2009 ◽  
Vol 65 (6) ◽  
pp. m702-m702 ◽  
Author(s):  
Wen-Dong Song ◽  
Hao Wang ◽  
Shi-Jie Li ◽  
Pei-Wen Qin ◽  
Shi-Wei Hu
Keyword(s):  
Hydrogen Bond ◽  
Hydrogen Bonding ◽  
Organic Ligand ◽  
Octahedral Geometry ◽  
Mononuclear Complex ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Hydrogen Bonding Interactions ◽  
Distorted Octahedral

In the title mononuclear complex, [Co(C9H4N2O4)(H2O)5]·5H2O, the CoIIatom exhibits a distorted octahedral geometry involving an N atom of a 1H-benzimidazole-5,6-dicarboxylate ligand and five water O atoms. A supramolecular network is generated through intermolecular O—H...O hydrogen-bonding interactions involving the coordinated and uncoordinated water molecules and the carboxyl O atoms of the organic ligand. An intermolecular N—H...O hydrogen bond is also observed.

scholarly journals Pentaaqua(1H-benzimidazole-5,6-dicarboxylato-κN3)nickel(II) pentahydrate

2009 ◽  
Vol 65 (6) ◽  
pp. m672-m672 ◽  
Author(s):  
Wen-Dong Song ◽  
Hao Wang ◽  
Pei-Wen Qin ◽  
Shi-Jie Li ◽  
Shi-Wei Hu
Keyword(s):  
Hydrogen Bonding ◽  
Three Dimensional ◽  
Organic Ligand ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Solvent Water ◽  
Hydrogen Bonding Interactions ◽  
Distorted Octahedral ◽  
Coordinated Water

In the title mononuclear complex, [Ni(C9H4N2O4)(H2O)5]·5H2O, the NiIIatom is six-coordinated by one N atom from a 1H-benzimidazole-5,6-dicarboxylate ligand and by five O atoms from five water molecules and displays a distorted octahedral geometry. Intermolecular O—H...O hydrogen-bonding interactions among the coordinated water molecules, solvent water molecules and carboxyl O atoms of the organic ligand and additional N—H...O hydrogen bonding lead to the formation of a three-dimensional supramolecular 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 Tris(ethylenediamine-κ2N,N′)cadmium hexafluoridogermanate

2012 ◽  
Vol 68 (4) ◽  
pp. m396-m397
Author(s):  
Guo-Ming Wang ◽  
Zeng-Xin Li ◽  
Pei Wang
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Supramolecular Network ◽  
Distorted Octahedral ◽  
Axis Passing

In the title compound, [Cd(C2H8N2)3](GeF6), the CdIIatom, lying on a 32 symmetry site, is coordinated by six N atoms from three ethylenediamine (en) ligands in a distorted octahedral geometry. The Ge atom also lies on a 32 symmetry site and is coordinated by six F atoms. The en ligand has a twofold rotation axis passing through the mid-point of the C—C bond. The F atom is disordered over two sites with equal occupancy factors. In the crystal, the [Cd(en)3]2+cations and [GeF6]2−anions are connected through N—H...F hydrogen bonds, forming a three-dimensional supramolecular network.

scholarly journals Poly[aqua[μ-1,2-bis(pyridin-4-yl)ethene-κ2N:N′][μ-5-(diphenylphosphinoyl)isophthalato-κ3O1,O1′:O3]nickel(II)]

2012 ◽  
Vol 68 (8) ◽  
pp. m1058-m1059
Author(s):  
Peng Zhang ◽  
Yu-Jie Liu ◽  
Kai-Hui Li ◽  
Guang-Rui Yang ◽  
Chong-Zhen Mei
Keyword(s):  
Hydrogen Bonding ◽  
Water Molecule ◽  
Title Compound ◽  
Supramolecular Structure ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Distorted Octahedral

In the title compound, [Ni(C20H13O5P)(C12H10N2)(H2O)]n, the NiIIcation is coordinated by three O atoms from two 5-(diphenylphosphinoyl)isophthalate anions, two N atoms from two 1,2-bis(pyridin-4-yl)ethene ligands and one water molecule in a distorted octahedral geometry. Both 1,2-bis(pyridin-4-yl)ethene and 5-(diphenylphosphinoyl)isophthalate bridge the NiIIcations to form polymeric layers parallel to (001). In the crystal, O—H...O hydrogen bonding links layers into a three-dimensional supramolecular structure.

The first three-dimensional FeIII–SrIIheterometallic coordination polymer: poly[[diaquatetrakis(μ3-pyridine-2,3-dicarboxylato)diiron(III)strontium(II)] dihydrate]

2015 ◽  
Vol 71 (10) ◽  
pp. 903-907 ◽  
Author(s):  
Yongfeng Yang ◽  
Tao Li ◽  
Yanmei Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Coordination Polymer ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Coordination Geometry ◽  
One Dimensional ◽  
Distorted Octahedral

The title compound, poly[[diaqua-1κ2O-tetrakis(μ3-pyridine-2,3-dicarboxylato)-2:1:2′κ10N,O2:O2′,O3:O3′;2:1:2′κ8O3:O3′:N,O2-diiron(III)strontium(II)] dihydrate], {[Fe2Sr(C7H3O4)4(H2O)2]·2H2O}n, which has triclinic (P\overline{1}) symmetry, was prepared by the reaction of pyridine-2,3-dicarboxylic acid, SrCl2·6H2O and Fe(OAc)2(OH) (OAc is acetate) in the presence of imidazole in water at 363 K. In the crystal structure, the pyridine-2,3-dicarboxylate (pydc2−) ligand exhibits μ3-η1,η1:η1:η1and μ3-η1,η1:η1,η1:η1coordination modes, bridging two FeIIIcations and one SrIIcation. The SrIIcation, which is located on an inversion centre, is eight-coordinated by six O atoms of four pydc2−ligands and two water molecules. The coordination geometry of the SrIIcation can be best described as distorted dodecahedral. The FeIIIcation is six-coordinated by O and N atoms of four pydc2−ligands in a slightly distorted octahedral geometry. Each FeIIIcation bridges two neighbouring FeIIIcations to form a one-dimensional [Fe2(pydc)4]nchain. The chains are connected by SrIIcations to form a three-dimensional framework. The topology type of this framework istfj. The structure displays O—H...O and C—H...O hydrogen bonding.

Poly[di-μ2-chlorido-μ4-hexamethylenetetramine-bis[chlorido(methanol-κO)cadmium(II)]]

2007 ◽  
Vol 63 (11) ◽  
pp. m2751-m2751 ◽  
Author(s):  
Yun Chen ◽  
Yu-Ling Wang ◽  
Shao-Ming Ying ◽  
Shuang-Lian Cai
Keyword(s):  
Hydrogen Bonding ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Chloride Anion ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Methanol Molecule ◽  
Distorted Octahedral Geometry ◽  
Polymeric Structure ◽  
Distorted Octahedral

In the title complex, [Cd2Cl4(C6H12N4)(CH3OH)2] n , the hexamethylenetetramine (hmta) ligand is located on a twofold rotation axis and bridges four CdII ions through its four N atoms. Each CdII atom is coordinated, with a distorted octahedral geometry, by two N atoms from hmta ligands, two μ2-chloride anions, one terminal chloride anion and one methanol molecule. The μ2-chloride anions and hmta molecules link the CdII cations to form the three-dimensional polymeric structure. O—H...Cl hydrogen bonding between the methanol ligands and the terminal chloride anions is observed in the three-dimensional polymeric structure.

scholarly journals Aquabis(4-nitrobenzoato)-κ2O,O′;κO-(piperidinium-4-carboxylato-κ2O,O′)cadmium(II)

2009 ◽  
Vol 65 (6) ◽  
pp. m664-m665 ◽  
Author(s):  
Run-Wen Zhang ◽  
Li-Li Wang ◽  
Xiao-Jun Zhao
Keyword(s):  
Water Molecule ◽  
Three Dimensional ◽  
Chair Conformation ◽  
Octahedral Geometry ◽  
Mixed Ligand ◽  
Distorted Octahedral Geometry ◽  
Supramolecular Network ◽  
Distorted Octahedral ◽  
Coordinated Water ◽  
Mononuclear Structure

In the mixed ligand title compound, [Cd(C6H11NO2)(C7H4NO4)2(H2O)], which exhibits a discrete mononuclear structure, the CdIIatom is in a distorted octahedral geometry, surrounded by five carboxylate O atoms and one coordinated water molecule. The piperdinium ring adopts a chair conformation and the two 4-nitrobenzoate rings are oriented at a dihedral angle of 75.8 (1)°. Intermolecular O—H...O and N—H...O hydrogen bonds link the mononuclear entities into a three-dimensional supramolecular network.

scholarly journals Bis(μ-4-amino-N-oxidobenzamide)bis[(4-amino-N-oxidobenzamide)aquacobalt] dihydrate

IUCrData ◽  
2016 ◽  
Vol 1 (10) ◽  
Author(s):  
Xulong Ding ◽  
Li Li
Keyword(s):  
Water Molecule ◽  
Binuclear Complex ◽  
Complex Molecule ◽  
Three Dimensional ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Water Molecules ◽  
Solvent Water ◽  
Dimensional Network ◽  
Distorted Octahedral

The structure of the title compound, [Co2(C7H7N2O2)4(H2O)2]·2H2O, consists of a centrosymmetric binuclear [Co2(4-Apha)4(H2O)2] complex molecule (4-AphaH = 4-aminophenylhydroxamic acid), and two solvent water molecules. Each CoII cation is six coordinate, binding five oxygen atoms from three 4-Apha− ligands and a water molecule in a slightly distorted octahedral geometry. Two of the 4-Apha− ligands bridge two neighbouring CoII ions to form the binuclear complex. A three-dimensional network structure is generated by O—H...O, N—H...O, and N—H...N hydrogen bonds.

A zirconium zwitterion containing a caged amine H atom

2003 ◽  
Vol 59 (11) ◽  
pp. m494-m496 ◽  
Author(s):  
Alastair J. Nielson ◽  
Chaohong Shen ◽  
Joyce M. Waters
Keyword(s):  
Hydrogen Bonding ◽  
Intramolecular Hydrogen Bonding ◽  
Octahedral Geometry ◽  
Distorted Octahedral Geometry ◽  
Charge Balance ◽  
Aromatic Rings ◽  
Hydrogen Bonding Interactions ◽  
Distorted Octahedral ◽  
Intramolecular Hydrogen

The crystallographically centrosymmetric zwitterion bis[tris(3,5-dimethyl-2-oxidobenzyl-κO)ammonium]zirconium(IV) crystallizes as the chloroform disolvate, [Zr(C27H31NO3)2]·2CHCl3, with the two molecules of chloroform closely associated with two of the aromatic rings. The Zr atom has a distorted octahedral geometry with three phenoxy O atoms from each of the two ligands coordinated to it. Charge balance is maintained by protonation of each N atom, which then forms intramolecular hydrogen-bonding interactions to all three adjacent O atoms.

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