scholarly journals Crystal structure and luminescent properties of bis[2,6-dimethyl-3-(pyridin-2-yl-κN)pyridin-4-yl-κC 4](2,2,6,6-tetramethylheptane-3,5-dionato-κ2 O,O′)iridium(III) ethyl acetate monosolvate

2018 ◽  
Vol 74 (9) ◽  
pp. 1206-1210 ◽  
Author(s):  
Ki-Min Park ◽  
Suk-Hee Moon ◽  
Youngjin Kang
Keyword(s):  
Room Temperature ◽  
Green Emission ◽  
Luminescent Properties ◽  
Title Complex ◽  
Chelating Ligands ◽  
Coordination Environment ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Bluish Green ◽  
Distorted Octahedral Coordination Environment

In the solvated title compound, [Ir(C12H11N2)2(C11H19O2)]·CH3CO2C2H5, the IrIII ion adopts a distorted octahedral coordination environment resulting from its coordination by two C,N-chelating 2,6-dimethyl-3-(pyridin-2-yl)pyridin-4-yl ligands and one O,O′-chelating 2,2,6,6-tetramethylheptane-3,5-dionate ligand. The C,N-chelating ligands are perpendicular to each other [dihedral angle between the least-squares planes = 87.86 (5)°] and are arranged in a cis-C,C′ and trans-N,N′ fashion. In the crystal, pairwise C—H...π interactions between inversion-related IrIII complexes are present, forming a dimeric structure. The title complex shows bright bluish–green emission with good quantum efficiency in solution at room temperature.

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 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 offac-[2-(4-methyl-5-phenylpyridin-2-yl)phenyl-κ2C1,N]bis[2-(pyridin-2-yl)phenyl-κ2C1,N]iridium(III)

2016 ◽  
Vol 72 (12) ◽  
pp. 1768-1770 ◽  
Author(s):  
Chi-Heon Lee ◽  
Suk-Hee Moon ◽  
Ki-Min Park ◽  
Youngjin Kang
Keyword(s):  
Crystal Structure ◽  
Equatorial Plane ◽  
Three Dimensional ◽  
Stacking Interactions ◽  
Chelating Ligands ◽  
Coordination Environment ◽  
Distorted Octahedral Coordination ◽  
Dimensional Network ◽  
Distorted Octahedral ◽  
Distorted Octahedral Coordination Environment

In the title compound, [Ir(C11H8N)2(C18H14N)], the IrIIIion adopts a distorted octahedral coordination environment defined by threeC,N-chelating ligands, one stemming from a 2-(4-phenyl-5-methylpyridin-2-yl)phenyl ligand and two from 2-(pyridin-2-yl)phenyl ligands, arranged in a facial manner. The IrIIIion lies almost in the equatorial plane [deviation = 0.0069 (15) Å]. In the crystal, intermolecular π–π stacking interactions, as well as intermolecular C—H...π interactions, are present, leading to a three-dimensional network.

scholarly journals (Carbonato-κ2O,O′)bis(5,5′-dimethyl-2,2′-bipyridyl-κ2N,N′)cobalt(III) bromide trihydrate

2012 ◽  
Vol 68 (4) ◽  
pp. m383-m384
Author(s):  
Kannan Arun Kumar ◽  
Parthsarathi Meera ◽  
Madhavan Amutha Selvi ◽  
Arunachalam Dayalan
Keyword(s):  
Hydrogen Bonding ◽  
Crystal Packing ◽  
Title Complex ◽  
Water Molecules ◽  
Stacking Interactions ◽  
Coordination Environment ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Carbonate Anion ◽  
Distorted Octahedral Coordination Environment

In the title complex, [Co(CO3)(C12H12N2)2]Br·3H2O, the CoIIIcation has a distorted octahedral coordination environment. It is chelated by four N atoms of two different 5,5′-dimethyl-2,2′-bipyridyl (dmbpy) ligands in axial and equatorial positions, and by two O atoms of a carbonate anion completing the equatorial positions. Although the water molecules are disordered and their H atoms were not located, there are typical O...O distances between 2.8 and 3.0 Å, indicating O—H...O hydrogen bonding. The crystal packing is consolidated by C—H...O and C—H...Br hydrogen bonds, as well as π–π stacking interactions between adjacent pyridine rings of the dmbpy ligands, with centroid–centroid distances of 3.694 (3) and 3.7053 (3) Å.

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 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 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 aquatris{μ-N-[bis(diethylamino)phosphoryl]-2,2,2-trichloroacetamidato-κ3O,O′:O}calciumsodium

2016 ◽  
Vol 72 (12) ◽  
pp. 1683-1686 ◽  
Author(s):  
Iuliia Shatrava ◽  
Kateryna Gubina ◽  
Vladimir Ovchynnikov ◽  
Viktoriya Dyakonenko ◽  
Vladimir Amirkhanov
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Water Molecules ◽  
Carbonyl Groups ◽  
Coordination Environment ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral ◽  
Phosphoryl Groups ◽  
Cl Atoms ◽  
Distorted Octahedral Coordination Environment

In the molecular structure of the title compound, [CaNa(C10H20Cl3N3O2P)3(H2O)], the Ca2+ion has a slightly distorted octahedral coordination environment defined by six O atoms which belong to the carbonyl and phosphoryl groups of the three coordinating ligands. Two Cl atoms of CCl3groups and four O atoms form the coordination environment of the Na+ion: three from the carbonyl groups of ligands and one O atom from a coordinating water molecule. In the crystal, the bimetallic complexes are assembled into chains along thec-axis directionviaO—H...O hydrogen bonds that involve the coordinating water molecules and the phosphoryl groups.

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