ChemInform Abstract: Amorphous Aluminosilicates Containing Trivalent Chromium in a Non-Octahedral Coordination Environment.

1985 ◽  
Vol 16 (43) ◽  
Author(s):  
D. STOJAKOVIC ◽  
D. VASOVIC
Keyword(s):  
Trivalent Chromium ◽  
Octahedral Coordination ◽  
Coordination Environment

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 Di-μ-aqua-bis[aqua(2,2′-bipyridine)(4-nitrobenzoato)cobalt(II)] bis(4-nitrobenzoate)

IUCrData ◽  
2020 ◽  
Vol 5 (6) ◽  
Author(s):  
Bikshandarkoil R. Srinivasan ◽  
Sarvesh S. Harmalkar ◽  
Luann R. D'Souza ◽  
Sunder N. Dhuri
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Octahedral Coordination ◽  
Bimetallic Complex ◽  
Coordination Environment

The title compound, [Co2(C7H4NO4)2(C10H8N2)2(H2O)4](C7H4NO4)2, consists of a centrosymmetric bimetallic complex charge-balanced by free 4-nitrobenzoate anions. The CoII ion exhibits a distorted cis-CoN2O4 octahedral coordination environment and the Co...Co separation is 3.326 (2) Å. In the crystal, the dications and anions are linked by O—H...O and C—H...O hydrogen bonds.

scholarly journals Bis[tris(propane-1,3-diamine-κ2N,N′)nickel(II)] diaquabis(propane-1,3-diamine-κ2N,N′)nickel(II) hexabromide dihydrate

2014 ◽  
Vol 70 (6) ◽  
pp. m227-m228 ◽  
Author(s):  
Aymen Yangui ◽  
Walid Rekik ◽  
Slim Elleuch ◽  
Younes Abid
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
General Position ◽  
Three Dimensional ◽  
The Other ◽  
Octahedral Coordination ◽  
Water Molecules ◽  
Coordination Environment ◽  
Lattice Water ◽  
Dimensional Network

In the title compound, [Ni(C3H10N2)3]2[Ni(C3H10N2)2(H2O)2]Br6·2H2O, one Ni2+cation, located on an inversion centre, is coordinated by four N atoms from two ligands and by two water O atoms. The other Ni2+cation, located in a general position, is coordinated by six N atoms from three ligands. In both cases, the Ni2+cation has an octahedral coordination environment. The overall structural cohesion is ensured by three types of hydrogen bonds, N—H...Br, O—H...Br and O—H...O, which connect the two types of complex cations, the bromide counter-anions and the lattice water molecules into a three-dimensional network.

Tris(3,3′-diamino-2,2′-bipyridine)zinc(II) dinitrate

2007 ◽  
Vol 63 (11) ◽  
pp. m2668-m2668 ◽  
Author(s):  
Chang-Ju Wu ◽  
Ju-Na Chen ◽  
Jing-Min Shi
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Complex ◽  
Octahedral Coordination ◽  
Nitrate Anion ◽  
Two Dimensional ◽  
Threefold Axis ◽  
Coordination Environment ◽  
Dimensional Network

In the title complex, [Zn(C10H10N4)3](NO3)2, the six-coordinate ZnII atom lies at the intersection of three twofold axes in a slightly disorted octahedral coordination environment. The N atom of a nitrate anion is located on a threefold axis. In the crystal structure, intermolecular N—H...N and N—H...O hydrogen bonds between cations and anions form a two-dimensional network perpendicular to the c axis.

scholarly journals Tetrachloridodi-μ3-oxido-tetrakis(μ2-propan-2-olato-κ2O:O)ditin(II)ditin(IV)

2014 ◽  
Vol 70 (2) ◽  
pp. m45-m46
Author(s):  
Oleg Yarushnikov ◽  
Dina Naumova ◽  
Nikolai Klishin ◽  
Eduard Rusanov ◽  
Oleksii Brusylovets
Keyword(s):  
Octahedral Coordination ◽  
Coordination Environment ◽  
Title Molecule

The centrosymmetric tetranuclear title molecule, [Sn4(C3H7O)4Cl4O2], contains two types of Sn atoms, SnIIand SnIV. The SnIIatom has a trigonal–pyramidal coordination environment and is bonded to two O atoms from two isopropanolate groups and one μ3-oxide atom. The SnIVatom has an octahedral coordination environment, formed by two chloride atoms, two μ3-oxide atoms and two O atoms from isopropanolate groups.

catena-Poly[[[2-(2-pyridyl)-1H-benzimidazole]cobalt(II)]-μ-benzene-1,4-dicarboxylato]

2007 ◽  
Vol 63 (11) ◽  
pp. m2726-m2726 ◽  
Author(s):  
Chang-Kun Xia ◽  
Wen Wu ◽  
Qiu-Yun Chen ◽  
Ji-Min Xie
Keyword(s):  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Benzene Ring ◽  
Three Dimensional ◽  
Chain Structure ◽  
Octahedral Coordination ◽  
Pyridyl Ring ◽  
Zigzag Chain ◽  
Coordination Environment ◽  
Π Interactions

In the title coordination polymer, [Co(C8H4O4)(C12H9N3)] n , the CoII atom exists in an octahedral coordination environment formed by four carboxylate O atoms from two benzene-1,4-dicarboxylate ligands, and two N atoms from the 2-(2-pyridyl)benzimidazole ligand. Bridging by the benzene-1,4-dicarboxylate ligand leads to a zigzag chain structure, and intermolecular N—H...O hydrogen bonds as well as π–π interactions between the pyridyl ring and the benzene ring of the 2-(2-pyridyl)benzimidazole ligand (centroid–centroid distances = 3.678 and 3.697 Å) link the chains into a three-dimensional framework.

Reaction of transition metal carbonyls with soluble polyselenides: synthesis and structure of [(C6H5)4P]2[Re2(Se4)2(CO)6]

1989 ◽  
Vol 67 (11) ◽  
pp. 1980-1983 ◽  
Author(s):  
Samuel C. O'Neal ◽  
William T. Pennington ◽  
Joseph W. Kolis
Keyword(s):  
Transition Metal ◽  
Metal Atom ◽  
Octahedral Coordination ◽  
Crystalline Solid ◽  
Metal Carbonyls ◽  
Coordination Environment ◽  
Space Group ◽  
Transition Metal Carbonyls ◽  
Zintl Ions

The reaction of rhenium decacarbonyl with polyselenide anions in DMF solution has been investigated. Two equivalents of K2Se3 react with Re2(CO)10 in DMF solution at 100 °C, in the presence of excess [(C6H5)4P]Br, to produce [(C6H5)4P]2[Re2(Se4)2(CO)6]. This can be isolated as an analytically pure red crystalline solid in 25% yield. The compound has been characterized crystallographically; space group P21/n, Z = 2, a = 12.052(3) Å, b = 14.619(5) Å, c = 16.159(4) Å, β = 98.31(2)°, V = 2817(1) Å3, R = 0.0583, Rw = 0.0653. In addition to two well-separated tetraphenylphosphonium counterions, the compound consists of the [Re2(Se4)2(CO)6]2− dianion. This molecule is a rhenium dimer with each metal coordinated to three CO ligands and a Se42− chain. One end of the chelating tetraselenide chain is bridging both rhenium atoms, completing an octahedral coordination environment around each metal atom. The bridging distances are slightly asymmetric, leading to the suggestion that the bridging selenide has some dative character. Keywords: selenides, rhenium carbonyls, Zintl ions, p-block clusters.

trans-(2,2′-Bipyridine)dichlorido[1-(4-methylphenylimino)-1-(phenylhydrazono)propan-2-one]ruthenium(II) dichloromethane solvate

2007 ◽  
Vol 63 (11) ◽  
pp. m2713-m2713 ◽  
Author(s):  
Mousa Al-Noaimi ◽  
Mohammad El-khateeb ◽  
Helmar Görls
Keyword(s):  
Title Compound ◽  
Solvent Molecule ◽  
Bidentate Ligand ◽  
Octahedral Coordination ◽  
Coordination Environment ◽  
Chloride Ligands ◽  
Cl Atoms

The title compound, [RuCl2(C10H8N2)(C16H15N3O)]·CH2Cl2, has a pseudo-octahedral coordination environment made up of two trans chloride ligands and four N-donor atoms, two of which are from the strong π-acceptor azoimine bidentate ligand. The two Cl atoms of the solvent molecule are disordered over two positions in an approximately 0.7:0.3 ratio.

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.

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