scholarly journals A Reaction of 4, 5-Diphenylimidazole Nitration in the Presence of Some 3d-Metals Nitrates

2012 ◽  
Vol 7 (2) ◽  
pp. 124-129
Author(s):  
I. Voda ◽  
V. Druta ◽  
C. Indricean ◽  
I. Ciumacov ◽  
C. Turta
Keyword(s):  
Nitrogen Atom ◽  
Oxygen Atom ◽  
Metal Ions ◽  
Coordination Number ◽  
Metal Ion ◽  
Distorted Octahedral Environment ◽  
3D Metals ◽  
Octahedral Environment ◽  
Distorted Octahedral

By interaction of cobalt(II), nickel(II), or zinc(II) nitrate with 4,5- diphenylimidazole in methanol in solvotermal conditions the new derivative of imidazole (4,5-diphenyl-2-nitroimidazole) and three new coordinative compounds [M(4,5-Ph2ImNO2)2(CH3OH)2] have been synthesized and investigated. Metal ions have a distorted octahedral environment with N2O4. Coordination number of metal is six. Ligand is coordinated to metal ion by one oxygen atom of nitrogroup and one nitrogen atom of imidazole.

Synthesis, IR and X-Ray Studies of Tetra(N,N′-tetraethyl-N″-benzoyl- phosphorictriamide)-tetra(μ-3-methoxo)-tetra(methanol)tetra-NickeI(II)

1998 ◽  
Vol 53 (8) ◽  
pp. 836-840 ◽  
Author(s):  
Vladimir A. Ovchynnikov ◽  
Vladimir M. Amirkhanov ◽  
Anatoliy A. Kapshuk ◽  
Tatyana Yu. Sliva ◽  
Tadeusz Glowiak ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Oxygen Atom ◽  
Metal Ion ◽  
Crystal And Molecular Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Octahedral Environment ◽  
Distorted Octahedral ◽  
Methoxy Groups ◽  
Oxygen Atoms

Abstract A new nickel(II) complex with N,N′-tetraethyl-N″-benzoylphosphortriamide (HL = C6H5C(O)N(H)P(O)(NEt2)2) of composition Ni4L4(OCH3)4·(HOCH3)4 (1) has been synthe­ sized. The crystal and molecular structure of 1 has been determined from the X-Ray diffraction data (tetragonal, space group P4̄21c with a = 17.000(2) Å, c = 15.338(3) Å, Z = 2; R = 0.0399 for 1412 unique reflections). The structure is made up of cubane-like tetramers. In the corners of a cube there are 4 atoms of nickel and 4 atoms of oxygen of methoxy groups. The nickel atoms are characterized by a slightly distorted octahedral environment, which consists of three oxygen atoms of methoxy groups, carbonylic and phosphorylic oxygen atoms of the ligand L-, and an oxygen atom of a methanol molecule. The ligands L- coordinate to the metal ion forming a chelate via the oxygen atoms of carbonylic and phosphorylic groups.

scholarly journals Diaquabis(pyrazine-2-carboxamide-κ2N1,O)cobalt(II) dinitrate

2012 ◽  
Vol 68 (4) ◽  
pp. m512-m513
Author(s):  
Ajay Pal Singh Pannu ◽  
Seona Lee ◽  
Yongjae Lee
Keyword(s):  
Metal Ion ◽  
Title Complex ◽  
Water Molecules ◽  
Nitrate Anion ◽  
Inversion Symmetry ◽  
Asymmetric Unit ◽  
Distorted Octahedral Environment ◽  
Octahedral Environment ◽  
Distorted Octahedral ◽  
Coordinated Water

The asymmetric unit of the title complex, [Co(C5H5N3O)2(H2O)2](NO3)2, contains one half of a CoIIcationic unit and a nitrate anion. The entire [Co(C5H5N3O)2(H2O)2]2+cationic unit is completed by the application of inversion symmetry at the CoIIsite, generating a six-coordinate distorted octahedral environment for the metal ion. The chelating pyrazine-2-carboxamide molecules are bound to cobaltviaN and O atoms, forming a square plane, while the remaining twotranspositions in the octahedron are occupied by two coordinated water molecules.

scholarly journals Crystal structure of bis(acetato-κO)diaqua(2,2′-bipyridine-κ2N,N′)manganese(II)

2014 ◽  
Vol 70 (9) ◽  
pp. m326-m327 ◽  
Author(s):  
Natarajan Saravanan ◽  
Parasuraman Selvam
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Metal Ion ◽  
Water Molecules ◽  
Intramolecular Hydrogen Bonds ◽  
Distorted Octahedral Environment ◽  
Octahedral Environment ◽  
Π Stacking ◽  
Distorted Octahedral ◽  
Intramolecular Hydrogen

In the title monomeric manganese(II) complex, [Mn(CH3COO)2(C10H8N2)(H2O)2], the metal ion is coordinated by a bidentate 2,2′-bipyridine (bpy) ligand, two water molecules and two axial acetate anions, resulting in a highly distorted octahedral environment. The aqua ligands are stabilized by the formation of strong intramolecular hydrogen bonds with the uncoordinated acetate O atoms, giving rise to pseudo-bridging arrangement of the terminal acetate groups. In the crystal, the molecules form [010] zigzag chainsviaO—H...O hydrogen bonds involving the aqua ligands and acetate O atoms. Further, the water and bpy ligands aretransto each other, and are arranged in an off-set fashion showing intermolecular π–π stacking between nearly parallel bipy rings, the centroid–centroid separations being 3.8147 (12) and 3.9305 (13) Å.

Preparation, Spectral Properties and Biological Activity of Cu(II), Zn(II) and Cd(II) Chelates of 8-Hydroxyquinoline-5-sulfonamides

1989 ◽  
Vol 44 (12) ◽  
pp. 1488-1492 ◽  
Author(s):  
S. A. Ibrahim ◽  
M. A. El-Gahami ◽  
R. M. Mahfouz ◽  
K. A. Farghali
Keyword(s):  
Biological Activity ◽  
Ir Spectroscopy ◽  
Elemental Analysis ◽  
Spectral Properties ◽  
Metal Ion ◽  
Wheat Seed ◽  
Conductivity Measurements ◽  
Distorted Octahedral Environment ◽  
Octahedral Environment ◽  
Distorted Octahedral

The complexes of some quinolinol sulfonamides with Cu(II), Zn(II), and Cd(II) have been synthesized and formulated as [Cu(L)2(H2O)2] and [M(L)2]nH2O, M = Zn(II), or Cd(II), n = 0—3 and L = anion of the corresponding ligand. Their structures have been suggested by elemental analysis, electronic and IR spectroscopy, and conductivity measurements. It was found that the sulfonamide ligands are monobasic bidentate ON donors of the quinolinol group. Consequently, the Zn(II) and Cd(II) complexes are formulated as tetrahedral, whereas in Cu(II) complexes a distorted octahedral environment of the metal ion is proposed. It was proven that the metal chelates inhibit and actively affect the germination of wheat seed.

scholarly journals Poly[bis(μ-4-aminobenzenesulfonato-κ2 N:O)diaquacobalt(II)]

IUCrData ◽  
2018 ◽  
Vol 3 (8) ◽  
Author(s):  
Antoine Blaise Kama ◽  
Mamadou Sidibe ◽  
Cheikh Abdoul Khadre Diop ◽  
Florent Blanchard
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Title Compound ◽  
Three Dimensional ◽  
Water Molecules ◽  
Supramolecular Framework ◽  
Distorted Octahedral Environment ◽  
Octahedral Environment ◽  
Distorted Octahedral

The title compound, [Co(C6H6NO3S)2(H2O)2] n , was obtained from a mixture of Co(NO3)2·6H2O and a previously synthesized salt, namely CyNH3·NH2PhSO3, in a 1:1 ratio (Cy = cyclohexyl; Ph = phenyl). The crystal structure consists of a three-dimensional supramolecular framework, in which polymeric layers are interconnected via N—H...O and O—H...O hydrogen bonding. The polymeric layers are formed by an interconnection of neighbouring cobalt(II) cations via NH2PhSO3 − bridges. Each cobalt(II) cation is surrounded by four NH2PhSO3 − moieties and two water molecules, leading to a distorted octahedral environment.

scholarly journals Diaquabis{4-[(pyridin-2-yl)methylideneamino]benzenesulfonato-κ2 N,N′}nickel(II) tetrahydrate

2012 ◽  
Vol 68 (6) ◽  
pp. m809-m810 ◽  
Author(s):  
Chao-Zhu Li ◽  
Xue-Ren Huang
Keyword(s):  
Hydrogen Bonding ◽  
Three Dimensional ◽  
Title Complex ◽  
Water Molecules ◽  
Framework Structure ◽  
Distorted Octahedral Environment ◽  
Hydrogen Bonding Interactions ◽  
Octahedral Environment ◽  
Distorted Octahedral ◽  
Coordinated Water

In the title complex, [Ni(C12H9N2O3S)2(H2O)2]·4H2O, the NiII ion is coordinated by four N atoms from two bidentate chelating 4-[(pyridin-2-yl)methylideneamino]benzenesulfonate ligands and two O atoms from cis-related water molecules in a slightly distorted octahedral environment [Ni—N = 2.071 (3)–2.121 (3) Å and Ni—O = 2.071 (2) and 2.073 (3) Å]. In the crystal, the coordinated water molecules and the four water molecules of solvation are involved in intermolecular O—H...O hydrogen-bonding interactions with water and sulfonate O-atom acceptors, giving a three-dimensional framework structure.

scholarly journals Tris(2-acetylcyclopentan-1-onato-κ2 O,O′)aluminium

2012 ◽  
Vol 68 (6) ◽  
pp. m781-m781
Author(s):  
Franc Perdih
Keyword(s):  
Title Compound ◽  
Thermal Motion ◽  
The Other ◽  
Distorted Octahedral Environment ◽  
Bond Lengths ◽  
Octahedral Environment ◽  
Distorted Octahedral

In the title compound, [Al(C7H9O2)3], the AlIII cation is coordinated by six O atoms from three 2-acetylcyclopentanonate ligands in a slightly distorted octahedral environment, with Al—O bond lengths in the range 1.882 (2)–1.896 (2) Å. In the crystal, molecules are linked together via C—H...O interactions. One of the C atoms in one ring has a large thermal motion compared to the other atoms, indicating some possible disorder. However, the treatment of this C atom as disordered over two positions did not give a significant improvement.

scholarly journals Tris[2,4-dichloro-6-(ethyliminomethyl)phenolato-κ2N,O]cobalt(III)

2012 ◽  
Vol 68 (8) ◽  
pp. m1047-m1047 ◽  
Author(s):  
Qiu Ping Huang ◽  
Jing Jing Guo ◽  
Yi Dong Zhang ◽  
Shu Hua Zhang
Keyword(s):  
Hydrogen Bond ◽  
Title Compound ◽  
Asymmetric Unit ◽  
Distorted Octahedral Environment ◽  
Octahedral Environment ◽  
Distorted Octahedral ◽  
Phenolate Ligands ◽  
Independent Molecules

The asymmetric unit of the title compound, [Co(C9H8Cl2NO)3], contains three independent molecules. In each molecule, the CoIIIion is coordinated by an O atom and an N atom from three bidentate 2,4-dichloro-6-(ethyliminomethyl)phenolate ligands in a slightly distorted octahedral environment. In the crystal, a weak C—H...Cl hydrogen bond is observed.

(2,9-Dimethyl-1,10-phenanthroline-κ2 N,N′)bis(3-hydroxybenzoato-κ2 O,O′)manganese(II) 2,9-dimethyl-1,10-phenanthroline dihydrate

2007 ◽  
Vol 63 (11) ◽  
pp. m2813-m2814 ◽  
Author(s):  
Xiao-peng Xuan ◽  
Pei-zheng Zhao ◽  
Shu-xia Zhang
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Water Molecules ◽  
Distorted Octahedral Environment ◽  
Octahedral Environment ◽  
Dimensional Network ◽  
Distorted Octahedral

In the title compound, [Mn(C7H5O3)2(C14H12N2)]·C14H12N2·2H2O, the MnII ion is coordinated by a bidentate 2,9-dimethyl-1,10-phenanthroline (dmphen) ligand and two bidentate 3-hydroxybenzoate anions in a distorted octahedral environment. The structure is stabilized by O—H...O and O—H...N hydrogen bonds involving water molecules, the 3-hydroxybenzoate ligands and the uncoordinated dmphen molecules to form a three-dimensional network.

catena-Poly[[bis(1,3-propylenediamine)zinc(II)]-μ-naphthalene-2,6-dicarboxylato-κ2 O 2:O 6]

2006 ◽  
Vol 62 (4) ◽  
pp. m736-m737
Author(s):  
Rong Yu ◽  
Ya-Qi Jiang ◽  
Zhao-Xiong Xie
Keyword(s):  
Dicarboxylic Acid ◽  
Title Compound ◽  
Chain Structure ◽  
Dimensional Chain ◽  
Distorted Octahedral Environment ◽  
One Dimensional ◽  
Octahedral Environment ◽  
Distorted Octahedral

The title compound, [Zn(C12H6O4)(C3H10N2)2] n , has been prepared from zinc(II), naphthalene-2,6-dicarboxylic acid (H2napdc) and 1,3-propylenediamine (pren). The Zn atom lies on a crystallographic centre of symmetry and is coordinated by two monodentate naphthalene-2,6-dicarboxylate ligands and two chelating 1,3-propylenediamine ligands in a distorted octahedral environment. The naphthalene-2,6-dicarboxylate ligands link the Zn atoms, forming a one-dimensional chain structure.

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