scholarly journals Dichlorido(pyridine-κN)[2,3,5,6-tetrakis(pyridin-2-yl)pyrazine-κ3 N 2,N 1,N 6]nickel(II)

IUCrData ◽  
2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Kwang Ha
Keyword(s):  
Rotation Axis ◽  
Title Complex ◽  
Octahedral Coordination ◽  
Pyridine Ligand ◽  
Complex Molecules ◽  
Coordination Environment ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Distorted Octahedral Coordination Environment

In the title complex, [NiCl2(C5H5N)(C24H16N6)], the NiII ion is six-coordinated in a distorted octahedral coordination environment defined by three N atoms of the tridentate 2,3,5,6-tetra-2-pyridylpyrazine ligand, one N atom of the pyridine ligand and two Cl− anions, with the latter being mutually trans. The complex is disposed about a twofold rotation axis along the a axis. The complex molecules are connected in the crystal via C—H...Cl, C—H...N and π–π [closest inter-centroid separation = 3.7446 (14) Å between pyridyl rings].

scholarly journals Crystal structure of (OC)5W(μ-dppe)W(CO)5

2016 ◽  
Vol 72 (10) ◽  
pp. 1383-1385
Author(s):  
Hannah F. Drake ◽  
Kraig A. Wheeler ◽  
Brian J. Bellott
Keyword(s):  
Crystal Structure ◽  
Title Complex ◽  
Octahedral Coordination ◽  
Coordination Environment ◽  
Carbonyl Ligands ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Distorted Octahedral Coordination Environment

The centrosymmetric title complex, [μ-ethane-1,2-diylbis(diphenylphosphane)-κ2P:P′]bis[pentacarbonyltungsten(0)], [W2(C26H24P2)(CO)10], consists of two W(CO)5moieties bridged by a bis(diphenylphosphanyl)ethane (dppe) ligand. The W0atom has a slightly distorted octahedral coordination environment consisting of 5 carbonyl ligands and one P atom from the bridging dppe ligand with the nearest W0atom 5.625 (5) Å away. The complex resides on a center of symmetry.

scholarly journals Bis(1-dodecyl-4-aza-1-azoniabicyclo[2.2.2]octane)tetraisothiocyanatocobalt(II)

IUCrData ◽  
2020 ◽  
Vol 5 (1) ◽  
Author(s):  
Niels Ole Giltzau ◽  
Martin Köckerling
Keyword(s):  
Hydrogen Bonding ◽  
Equatorial Plane ◽  
Title Compound ◽  
Unit Cell ◽  
Octahedral Coordination ◽  
Coordination Environment ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Triclinic Unit Cell ◽  
Distorted Octahedral Coordination Environment

The title compound, [Co(C18H37N2)2(NCS)4], consists of a cobalt(II) ion positioned on the origin of the triclinic unit cell. It is coordinated by the N atoms of two trans-oriented 1-dodecyl-4-aza-1-azoniabicyclo[2.2.2]octane (DABCO+) cations, which carry n-dodecyl chains at the non-coordinating N atoms. The distorted octahedral coordination environment of the CoII ion is completed through four N atoms of isothiocyanate ions, which are arranged within the equatorial plane. Non-classical hydrogen bonding of the types C—H...N and C—H...S between the filamentous molecules lead to the formation of layers parallel to (001).

scholarly journals Crystal structure of tetraaquabis(1,3-dimethyl-2,6-dioxo-7H-purin-7-ido-κN7)cobalt(II)

2017 ◽  
Vol 73 (9) ◽  
pp. 1302-1304 ◽  
Author(s):  
Hicham El Hamdani ◽  
Mohammed El Amane ◽  
Carine Duhayon
Keyword(s):  
Crystal Structure ◽  
Three Dimensional ◽  
Title Complex ◽  
Water Molecules ◽  
Supramolecular Network ◽  
Coordination Environment ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Intramolecular Hydrogen ◽  
Distorted Octahedral Coordination Environment

The title complex, [Co(C7H7N4O2)2(H2O)4], comprises mononuclear molecules consisting of a CoIIion, two deprotonated theophylline ligands (systematic name: 1,3-dimethyl-7H-purine-2,6-dione) and four coordinating water molecules. The CoIIatom lies on an inversion centre and has a slightly distorted octahedral coordination environment, with two N atoms of twotrans-oriented theophylline ligands and the O atoms of four water molecules. An intramolecular hydrogen bond stabilizes this conformation. A three-dimensional supramolecular network structure is formed by intermolecular O—H...O and O—H...N hydrogen bonds.

scholarly journals Dibromidobis[1-(2-bromobenzyl)-3-(pyrimidin-2-yl)-1H-imidazol-2(3H)-one]copper(II)

2012 ◽  
Vol 68 (6) ◽  
pp. m785-m785 ◽  
Author(s):  
Chun-Xin Lu
Keyword(s):  
Bond Length ◽  
Dihedral Angle ◽  
Title Complex ◽  
Carbonyl Groups ◽  
Coordination Environment ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Carbonyl Bond ◽  
Coordination Plane ◽  
Distorted Octahedral Coordination Environment

In the title complex, [CuBr2(C14H11BrN4O)2], the CuII ion is located on an inversion centre and is coordinated by two ketonic O atoms, two N atoms and two Br atoms, forming a distorted octahedral coordination environment. The two carbonyl groups are trans positioned with C=O bond lengths of 1.256 (5) Å, in agreement with a classical carbonyl bond. The Cu—O bond length is 2.011 (3) Å. The two bromobenzyl rings are approximately parallel to one another, forming a dihedral angle of 70.1 (4)° with the coordination plane.

scholarly journals Bis{2-[bis(3,5-dimethyl-1H-pyrazol-1-yl-κN 2)methyl]pyridine-κN}cobalt(II) dinitrate

2012 ◽  
Vol 68 (6) ◽  
pp. m857-m857 ◽  
Author(s):  
Chao-Hu Xiao ◽  
Xue-Yan Song ◽  
Zan Sun ◽  
Ping Cao ◽  
Ting Pang
Keyword(s):  
Coordination Sphere ◽  
Rotation Axis ◽  
Title Complex ◽  
Octahedral Coordination ◽  
Distorted Octahedral Coordination ◽  
Pyridine Ligands ◽  
Distorted Octahedral ◽  
Methyl Pyridine

The central CoII ion in the title complex, [Co(C16H19N5)2](NO3)2, is located on a twofold rotation axis and has a slightly distorted octahedral coordination sphere. It is bonded to six N atoms from two 2-[bis(3,5-dimethyl-1H-pyrazol-1-yl)methyl]pyridine ligands. In the crystal, molecules are linked by weak C—H...O interactions.

scholarly journals catena-Poly[[diaqua(1H-imidazo[4,5-f][1,10]phenanthroline)cobalt(II)]-μ-sulfato]

2009 ◽  
Vol 65 (6) ◽  
pp. m618-m618 ◽  
Author(s):  
Jian Yu
Keyword(s):  
Three Dimensional ◽  
Title Complex ◽  
Water Molecules ◽  
Coordination Environment ◽  
One Dimensional ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Coordinated Water ◽  
Distorted Octahedral Coordination Environment

The CoIIion in the title complex, [Co(SO4)(C13H8N4)(H2O)2]n, has a slightly distorted octahedral coordination environment formed by two O atoms from two symmetry-related bridging sulfate ligands, two N atoms from a bis-chelating 1H-imidazo[4,5-f][1,10]phenanthroline (IPL) ligand and two O atoms from coordinated water molecules. The bridging sulfate ligands connect CoIIions to form a one-dimensional chain along theb-axis direction. In the crystal structure, intermolecular O—H...O, O—H...N and N—H...O hydrogen bonds link the chains into a three-dimensional network.

scholarly journals cis-Bromidobis(1,2-diaminoethane-κ2 N,N′)(ethylamine-κN)cobalt(III) dibromide

IUCrData ◽  
2018 ◽  
Vol 3 (6) ◽  
Author(s):  
S. Manimaran ◽  
M. Manjunathan ◽  
E. Govindan ◽  
K. Sambathkumar ◽  
K. Anbalagan
Keyword(s):  
Hydrogen Bonds ◽  
Complex Cation ◽  
Three Dimensional ◽  
Title Complex ◽  
Coordination Environment ◽  
X Ray ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Distorted Octahedral Coordination Environment

In the title complex, [CoBr(C2H7N)(C2H8N2)2]Br2, the CoIII centre has a distorted octahedral coordination environment, and is surrounded by four N atoms in the equatorial plane, with an additional N atom and the Br atom occupying the axial positions. The complex is isostructural with the Cl compound for which the X-ray structure has also been reported [Anbalagan, Mahalakshmi & Ganeshraja (2011). J. Mol. Struct. 1005, 45–52]. In the crystal, the complex cation and the two counter-anions are linked via N—H...Br hydrogen bonds, forming a three-dimensional network.

scholarly journals Crystal structure of aqua[N-(2-oxidobenzyl-κO)-L-leucinato-κ2N,O](1,10-phenanthroline-κ2N,N′)nickel(II) pentahydrate

2015 ◽  
Vol 71 (2) ◽  
pp. 195-198 ◽  
Author(s):  
Md. Serajul Haque Faizi ◽  
Natalia O. Sharkina
Keyword(s):  
Crystal Structure ◽  
Three Dimensional ◽  
Water Molecules ◽  
Complex Molecules ◽  
Coordination Environment ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Phenanthroline Ligand ◽  
Distorted Octahedral Coordination Environment

In the title compound, [Ni(C13H17NO3)(C12H8N2)(H2O)]·5H2O, the NiIIatom is in a distorted octahedral coordination environment provided by the two N atoms of one bidentate phenanthroline ligand and two O atoms and one N atom from a tridentate 2-[(2-hydroxybenzyl)amino]-4-methylpentanoic acid (HAMA) ligand and one water molecule. The complex was prepared by the reaction of nickel(II) nitrate with HAMA in the presence of 1,10-phenanthroline in a 1:1:1 ratio. In the crystal, the complex molecules and solvate water molecules are associatedviaO—H...O hydrogen bonds into a three-dimensional network.

scholarly journals cis-Bromidobis(ethylene-1,2-diamine)(2-methylpropan-1-amine)cobalt(III) dibromide

IUCrData ◽  
2018 ◽  
Vol 3 (9) ◽  
Author(s):  
M. Manjunathan ◽  
K. Anbalagan ◽  
K. Sambathkumar ◽  
E. Govindan
Keyword(s):  
Hydrogen Bonds ◽  
Equatorial Plane ◽  
Title Compound ◽  
Complex Cation ◽  
Octahedral Coordination ◽  
Supramolecular Framework ◽  
Coordination Environment ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Distorted Octahedral Coordination Environment

In the title compound, [CoBr(C2H8N2)2(C4H11N)]Br2, the cobalt(III) ion has a distorted octahedral coordination environment and is ligated by three N atoms and a bromine ion in the equatorial plane, and by two N atoms occupying the axial positions. In the crystal, the complex cation and the two Br− counter-anions are linked by N—H...Br hydrogen bonds, forming a supramolecular framework.

scholarly journals rac-cis,cis-Dicarbonyldichlorido{1-[2-(diphenylphosphanyl)benzyl]-3-mesitylimidazol-2-ylidene}ruthenium(II) dichloromethane monosolvate

2012 ◽  
Vol 68 (8) ◽  
pp. m1121-m1121 ◽  
Author(s):  
Gregory J. Domski ◽  
Sallie A. Hohenboken ◽  
Dale C. Swenson
Keyword(s):  
Title Compound ◽  
Transfer Hydrogenation ◽  
Octahedral Coordination ◽  
Catalytic Transfer Hydrogenation ◽  
Coordination Environment ◽  
Bond Angles ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Catalytic Transfer ◽  
Distorted Octahedral Coordination Environment

The RuIIatom in the title compound, [RuCl2(C31H29N2P)(CO)2]·CH2Cl2, exhibits a distorted octahedral coordination environment. The bond angles of thecissubstituents at the RuIIatom range from 82.72 (9) to 97.20 (3)°. This molecule is of interest in the field of catalytic transfer hydrogenation.

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