Nanjing College of Chemical Technology

Nanjing, China

Nanjing College of Chemical Technology

Nanjing, China
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Zhong K.-L.,Nanjing College of Chemical Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2013

The title compound, [Ni(SO4)(C10H8N2)(C2H6O2)(H2O)] n , contains two crystallographically unique NiII atoms, each lying on a twofold rotation axis and having a slightly distorted octahedral environment. It is isotypic with the previously reported CuII analog [Zhong et al. (2011). Acta Cryst. C67, m62-m64]. One NiII atom is coordinated by two N atoms from two bridging 4,4′-bipyridine (4,4′-bipy) ligands, two O atoms from two sulfate ions and two aqua O atoms. The second Ni II atom is surrounded by two N atoms from 4,4′-bipy ligands and four O atoms, two from bridging sulfate ions and from two ethane-1,2-diol ligands. The sulfate anion acts as a bridging ligand, linking adjacent Ni II atoms, leading to the formation of linear ⋯Ni1 - Ni2 - Ni1 - Ni2⋯ chains along the a-axis direction. Adjacent chains are further bridged by 4,4′-bipy ligands, resulting in a two-dimensional layered polymer parallel to (001). In the crystal, the polymeric layers are linked by extensive O - H⋯O hydrogen-bonding interactions involving the O atoms of the water molecules and the ethane-1,2-diol molecules, resulting in a three-dimensional supramolecular network. © 2013 Kai-Long Zhong.


Zhang Y.,Nanjing College of Chemical Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2013

In the crystal structure of the title salt, C11H18N+·PF6 -, the cation and anion are connected via an N - HF hydrogen bond; weak C - HF hydrogen bonding also occurs between the cations and anions.


Zhong K.-L.,Nanjing College of Chemical Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2013

In the preparation of the title hydrated salt, C14H 13N2 +·C10H5O 8 -·H2O, a proton has been transfered to the 2,9-dimethyl-1,10-phenanthrolinium cation, forming a 2,4,5- tricarboxybenzoate anion. In the anion, the mean planes of the protonated carboxylate groups form dihedral angles of 11.0 (5), 4.4 (5) and 80.3 (4)° with the benzene ring to which they are attached. The mean plane of the deprotonated carboxylate group forms a dihedral angle of 10.6 (5)° with the benzene ring. In the crystal, the anions are involved in carboxylic acid O-H⋯Ocarboxyl hydrogen bonds, generating a two-dimensional network parallel to (001) containing R4 4(28) and R 4 4(32) motifs. The 2,9-dimethyl-1,10-phenanthrolinium cations and water molecules reside between the anion layers and are connected to the anions via N-H⋯Owater and Owater-H⋯Ocarboxyl hydrogen bonds. An intramolecular O-H⋯O hydrogen bond is also observed in the anion.


Zhong K.-L.,Nanjing College of Chemical Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

The title compound, [Cd(C12H8N2) 2(H2O)2]SO4·6H2O, was obtained unexpectedly during an attempt to synthesize a cadmium complex with bidentate bridging sulfate ligands via hydrothermal synthesis. The Cd II metal ion is six-coordinated by two chelating 1,10-phenanthroline ligands and two water molecules, resulting in a distorted octahedral geometry for the metal ion. The two chelating N2C2 groups are almost perpendicular to each other [dihedral angle = 86.75 (2)°]. In the crystal, the [Cd(C12H8N2)2(H 2O)2]2+ complex cations join with the sulfate anions through two Owater - H⋯Osulfate hydrogen bonds. These ion pairs are further inter-linked into a two-dimensional supermolecular structure via additional O - H⋯O hydrogen bonds. © Kai-Long Zhong 2011.


Zhong K.-L.,Nanjing College of Chemical Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2011

In the title compound, [Cu(SO 4)(C 12H 8N 2) 2]·C 2H 6O 2, the Cu II ion is fivecoordinated in a distorted squarepyramidal manner by four N atoms from two chelating 1,10-phenanthroline (phen) ligands and one O atom from a monodentate sulfate anion. The four N atoms comprise a square and the one O atom the apex of a square pyramid. The two chelating N 2C 2 groups are oriented at 71.1 (2)°. In the crystal, the components are connected by intermolecular O - H⋯O hydrogen bonding. The presence of pseudosymmetry in the structure suggests the higher symmetry space group C2/c, but attempts to refine the structure in this space group resulted in an unsatisfactory model.


Zhong K.-L.,Nanjing College of Chemical Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2010

The title compound, [Zn(SO4)(C10H8N 2)2]·C2H6O2, is a six-coordinate zinc(II) complex with a distorted octa-hedral coordination geometry. The ZnII atom is bonded by two O atoms of the bidentate chelating sulfate ligand and four N atoms of the two chelating 2,2'-bipyridine ligands. The Zn - N bond distances range from 2.1287 (17) to 2.1452 (17) Å and the Zn - O bond distance is 2.1811 (15) Å. The two chelating NCCN groups subtend a dihedral angle of 81.1 (1)°. In the crystal structure, the [ZnSO4(C10H8N2)2] and C2H6O2 units are connected by inter-molecular O - H⋯O hydrogen bonding, which leads to additional stabilization of the structure.


Zhong K.-L.,Nanjing College of Chemical Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2010

The title compound, [Co(SO4)(C12H8N 2)2]·C3H8O2, was obtained unexpectedly as a by-product during an attempt to synthesize a mixed-ligand complex of CoII with 1,10-phenanthroline (phen) and melamine via a solvothermal reaction. The CoII metal ions are in a distorted octa-hedral coordination environment formed by four N atoms from two chelating phen ligands and two O atoms from a bidentate sulfate ligand. The two chelating N2C2 groups are almost perpendicular to each other [dihedral angle = 80.06 (8)°]. A twofold rotation axis passes through the Co and S atoms, and also through the central C atom of the propane-1,3-diol solvent mol-ecule. Inter-molecular O - H⋯O hydrogen bonds help to stabilize the structure.


Zhong K.-L.,Nanjing College of Chemical Technology
Zeitschrift fur Kristallographie - New Crystal Structures | Year: 2011

C 27H 24CuN 4O 6S, monoclinic, C1c1 (no. 9), a = 17.405(7) Å, b = 13.074(6) Å, c= 13.267(7) Å, β = 123.45(2)°, V = 2519.1 Å 3, Z = 4, R gt(F) = 0.046, wR ref(F 2) = 0.126, T= 291 K. © by Oldenbourg Wissenschaftsverlag, München.


The title compounds, tris-(1,10-phenanthroline-κ2 N,N′)iron(II) bis-(2,4,5-tricarb-oxy-benzoate) monohydrate, [Fe(C 12H8N2)3](C10H 5O8)2·H2O, (I), and tris-(2,2′- bipyridine-κ2 N,N′)iron(II) 2,5-dicarb-oxy-benzene-1,4- dicarboxyl-ate-benzene-1,2,4,5-tetra-carb-oxy-lic acid-water (1/1/2), [Fe(C 10H8N2)3](C10H 4O8)·C10H6O 8·2H2O, (II), were obtained during an attempt to synthesize a mixed-ligand complex of FeII with an N-con-taining ligand and benzene-1,2,4,5-tetra-carb-oxy-lic acid via a solvothermal reaction. In both mononuclear complexes, each FeII metal ion is six-coordinated in a distorted octa-hedral manner by six N atoms from three chelating 1,10-phenanthroline or 2,2′-bipyridine ligands. In compound (I), the FeII atom lies on a twofold axis in the space group C2/c, whereas (II) crystallizes in the space group P21/n. In both compounds, the uncoordinated carboxyl-ate anions and water mol-ecules are linked by typical O - H⋯O hydrogen bonds, generating extensive three-dimensional hydrogen-bond networks which surround the cations. © 2012 International Union of Crystallography.


Zhong K.-L.,Nanjing College of Chemical Technology
Acta Crystallographica Section E: Structure Reports Online | Year: 2012

In the title compound, [Cu(SO4)(C12H8N2)2]·C3H8O2, the Cu II ion is bonded to two chelating 1,10-phenanthroline (phen) ligands and one O atom from a monodentate sulfate ligand in a distorted square-based pyramidal arrangement, with the O atom in a basal site. The two chelating N2C2 groups subtend a dihedral angle of 71.10 (15)°. In the crystal, the solvent molecule forms two O-H⋯O hydrogen bonds to its adjacent complex molecule. The chosen crystal was found to be a racemic twin; the presence of pseudosymmetry in the structure suggests the higher symmetry space group C2/c, but attempts to refine the structure in this space group resulted in an unsatisfactory model and high R and wR values.

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