[3-Methoxy-2-oxidobenzaldehyde (2-thienylcarbonyl)hydrazonato]dimethyltin(IV)

2006 ◽  
Vol 62 (5) ◽  
pp. m1024-m1026
Author(s):  
Shao-Wen Chen ◽  
Han-Dong Yin
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Complex ◽  
Asymmetric Unit ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal

In the molecule of the title complex, [Sn(CH3)2(C13H10N2O3S)], the Sn atom is in a distorted trigonal–bipyramidal geometry. There are two molecules in the asymmetric unit. A centrosymmetric arrangement leads to an Sn2O2 core through weak Sn...O interactions and causes the formation of a dimer. Intermolecular C—H...O hydrogen bonds seem to be effective in the stabilization of the crystal structure.

scholarly journals Crystal structure of tricarbonyl(N-diphenylphosphanyl-N,N′-diisopropyl-P-phenylphosphonous diamide-κ2P,P′)cobalt(I) tetracarbonylcobaltate(−I) toluene 0.25-solvate

2014 ◽  
Vol 70 (12) ◽  
pp. 533-535
Author(s):  
Laura Dura ◽  
Anke Spannenberg ◽  
Torsten Beweries
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Coordination Geometry ◽  
Asymmetric Unit ◽  
Structural Element ◽  
Trigonal Bipyramidal ◽  
Toluene Molecule ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Interionic Hydrogen ◽  
Distorted Trigonal Bipyramidal

The asymmetric unit of the title compound, [Co(C24H30N2P2)(CO)3][Co(CO)4]·0.25C7H8, consists of two crystallographically independent cations with similar conformations, two anions, and one-half of a toluene molecule disordered about an inversion centre. In the cations, a Co/P/N/P four-membered slightly bent metallacycle is the key structural element. The pendant NH group is not coordinated to the CoIatom, which displays a distorted trigonal–bipyramidal coordination geometry. Weak interionic hydrogen bonds are observed between the NH groups and a carbonyl group of the tetrahedral [Co(CO)4]−anions.

scholarly journals Dibromido(dimethyl sulfoxide-κO)(6-methyl-2,2′-bipyridine-κ2N,N′)cadmium

2012 ◽  
Vol 68 (8) ◽  
pp. m1124-m1124 ◽  
Author(s):  
Sadif A. Shirvan ◽  
Sara Haydari Dezfuli
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Hydrogen Bonds ◽  
Dimethyl Sulfoxide ◽  
Title Compound ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Bipyridine Ligand ◽  
Distorted Trigonal Bipyramidal

In the title compound, [CdBr2(C11H10N2)(C2H6OS)], the CdIIatom is five-coordinated in a distorted trigonal–bipyramidal geometry by two N atoms from a 6-methyl-2,2′-bipyridine ligand, one O atom from a dimethyl sulfoxide ligand and two Br atoms. An intramolecular C—H...O hydrogen bond occurs. The crystal structure is stabilized by C—H...Br hydrogen bonds and π–π contacts between the pyridine rings [centroid–centroid distances = 3.582 (5) and 3.582 (5) Å].

scholarly journals Crystal structure of a mixed-valence μ-oxide Sn12cluster

2014 ◽  
Vol 70 (11) ◽  
pp. m378-m379 ◽  
Author(s):  
Marina M. Kireenko ◽  
Kirill V. Zaitsev ◽  
Sergey S. Karlov ◽  
Mikhail P. Egorov ◽  
Andrei V. Churakov
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Complex Molecule ◽  
Mixed Valence ◽  
Asymmetric Unit ◽  
Coordination Numbers ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Solvent Molecules ◽  
Distorted Trigonal Bipyramidal

The mixed-valence μ-oxide Sn12cluster, decacarbonyltetra-μ4-oxido-hexa-μ3-oxido-tetrakis[μ-2,2′-(pyridine-2,6-diyl)bis(1,1-diphenylethanolato)]decatin(II)ditin(IV)dimolybdenum(O)(2Mo—Sn) toluene heptasolvate, [Mo2Sn12(C33H27NO2)4O10(CO)10]·7C7H8, has a crystallographically imposed inversion centre. The asymmetric unit also contains three and a half toluene solvent molecules, one of which is disordered about a centre of symmetry. The complex molecule comprises six distinct Sn atom species with four different coordination numbers, namely 3, 4, 5, and 6. The SnIIatoms forming the central Sn10O10core adopt distorted trigonal–pyramidal, square-pyramidal and octahedral coordination geometries provided by the μ-oxide atoms and by the O- and N-donor atoms of two pyridinediethanolate ligands. The terminal SnIVatoms have distorted trigonal–bipyramidal coordination geometries, with a μ4-oxide atom and the N atom of a pyridinediethanolate ligand occupying the axial positions, and the Mo atom of a Mo(CO)5group and the alkoxy O atoms of a ligand forming the equatorial plane. In the crystal, weak intra- and intermolecular C—H...O hydrogen bonds are observed.

scholarly journals Crystal structure of {6,6′-dihydroxy-2,2′-[iminobis(propane-1,3-diylnitrilomethanylylidene)]diphenolato-κ5O1,N,N′,N′′,O1′}copper(II)

2015 ◽  
Vol 71 (11) ◽  
pp. m203-m204
Author(s):  
Shabana Noor ◽  
Sarvendra Kumar ◽  
Suhail Sabir ◽  
Rüdiger W. Seidel ◽  
Richard Goddard
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bond ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Asymmetric Unit ◽  
Bond Forming ◽  
Trigonal Bipyramidal ◽  
Column Structure ◽  
Independent Molecules ◽  
Distorted Trigonal Bipyramidal

The title compound, [Cu(C20H23N3O4)], crystallizes in the space groupCcwith two independent molecules in the asymmetric unit. The CuIIatoms are each coordinated by the pentadentate Schiff base ligand in a distorted trigonal bipyramidal N3O2geometry. The equatorial plane is formed by the two phenolic O atoms and the amine N atom, while the axial positions are occupied by the two imine N atoms. In the crystal, the two independent molecules are each connected into a column along thebaxis through intermolecular O—H...O hydrogen bonds. The two independent columns are further linked through an N—H...O hydrogen bond, forming a double-column structure.

scholarly journals Crystal structure of bis(μ2-tetrabromophthalato-κ2O1:O2)bis[aqua(N,N,N′,N′-tetramethylethane-1,2-diamine-κ2N,N′)copper(II)]

2015 ◽  
Vol 71 (9) ◽  
pp. m171-m172 ◽  
Author(s):  
Luis Manuel Tobón-Trujillo ◽  
Luis Felipe Villanueva-Sánchez ◽  
Diego Martínez-Otero ◽  
Alejandro Dorazco-González
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Water Molecule ◽  
Title Complex ◽  
Dinuclear Complex ◽  
Axis Direction ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Supramolecular Chains

In the title complex, [Cu2(C8Br4O4)2(C6H16N2)2(H2O)2], the CuIIcation is chelated by a tetramethylethane-1,2-diamine ligand and coordinated by a water molecule as well as bridged by two tetrabromophthalate anions in a distorted O3N2trigonal–bipyramidal geometry. The two symmetry-related tetrabromophthalate anions bridge the two CuIIcations, forming a centrosymmetric dinuclear complex in which the Cu...Cu separation is 5.054 (2) Å. Intramolecular classic O—H...O hydrogen bonds and weak C—H...O hydrogen bonds occur in the dinuclear molecule. In the crystal, the molecules are linked by weak C—H...Br and C—H...O interactions into supramolecular chains propagating along theb-axis direction.

scholarly journals Crystal structure of [tris(pyridin-2-ylmethyl)amine-κ4N]copper(II) bromide

2016 ◽  
Vol 72 (6) ◽  
pp. 801-804 ◽  
Author(s):  
Emma C. Bridgman ◽  
Megan M. Doherty ◽  
Kaleigh A. Ellis ◽  
Elizabeth A. Homer ◽  
Taylor N. Lashbrook ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Title Compound ◽  
Outer Sphere ◽  
Asymmetric Unit ◽  
Positional Disorder ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Counter Ion ◽  
Amine Ligand ◽  
Distorted Trigonal Bipyramidal

In the asymmetric unit of the title compound, [CuBr(C18H18N4)]Br, there are three crystallographically independent cations. One of the cations exhibits positional disorder of the pyridin-2-ylmethyl groups over two sets of sites with refined occupancies of 0.672 (8) and 0.328 (8). The outer-sphere bromine counter-ion is severely disordered over multiple sites. In each cation, the CuIIion is coordinated by the four N atoms of the tris(pyridin-2-ylmethyl)amine ligand and one bromine and adopts a slightly distorted trigonal–bipyramidal geometry.

scholarly journals Crystal structure of bis(2-{1-[(E)-(4-fluorobenzyl)imino]ethyl}phenolato-κ2N,O)palladium(II)

2015 ◽  
Vol 71 (4) ◽  
pp. 350-353
Author(s):  
Amalina Mohd Tajuddin ◽  
Hadariah Bahron ◽  
Hamizah Mohd Zaki ◽  
Karimah Kassim ◽  
Suchada Chantrapromma
Keyword(s):  
Crystal Structure ◽  
Schiff Base ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Title Complex ◽  
Asymmetric Unit ◽  
Schiff Base Ligands ◽  
Bond Lengths ◽  
Square Planar ◽  
Coordination Plane

The asymmetric unit of the title complex, [Pd(C15H13FNO)2], contains one half of the molecule with the PdIIcation lying on an inversion centre and is coordinated by the bidentate Schiff base anion. The geometry around the cationic PdIIcentre is distorted square planar, chelated by the imine N- and phenolate O-donor atoms of the two Schiff base ligands. The N- and O-donor atoms of the two ligands are mutuallytrans, with Pd—N and Pd—O bond lengths of 2.028 (2) and 1.9770 (18) Å, respectively. The fluorophenyl ring is tilted away from the coordination plane and makes a dihedral angle of 66.2 (2)° with the phenolate ring. In the crystal, molecules are linked into chains along the [101] direction by weak C—H...O hydrogen bonds. Weak π–π interactions with centroid–centroid distances of 4.079 (2) Å stack the molecules alongc.

scholarly journals Crystal structure refinement of magnesium zinc divanadate, MgZnV2O7, from powder X-ray diffraction data

2021 ◽  
Vol 77 (6) ◽  
pp. 588-591
Author(s):  
Stephanie J. Hong ◽  
Jun Li ◽  
Mas A. Subramanian
Keyword(s):  
Crystal Structure ◽  
Diffraction Data ◽  
Structure Refinement ◽  
Atomic Ratio ◽  
Asymmetric Unit ◽  
X Ray Diffraction ◽  
X Ray ◽  
Trigonal Bipyramidal ◽  
Wyckoff Position ◽  
Distorted Trigonal Bipyramidal

The crystal structure of magnesium zinc divanadate, MgZnV2O7, was determined and refined from laboratory X-ray powder diffraction data. The title compound was synthesized by a solid-state reaction at 1023 K in air. The crystal structure is isotypic with Mn0.6Zn1.4V2O7 (C2/m; Z = 6) and is related to the crystal structure of thortveitite. The asymmetric unit contains two metal sites with statistically distributed magnesium and zinc atoms with the atomic ratio close to 1:1. One (Mg/Zn) metal site (M1) is located on Wyckoff position 8j and the other (M2) on 4h. Three V sites (all on 4i), and eight O (three 8j, four 4i, and one 2b) sites complete the asymmetric unit. The structure is an alternate stacking of V2O7 layers and (Mg/Zn) atom layers along [20\overline{1}]. It is distinct from other related structures in that each V2O7 layer consists of two groups: a V2O7 dimer and a V4O14 tetramer. Mixed-occupied M1 and M2 are coordinated by oxygen atoms in distorted trigonal bipyramidal and octahedral sites, respectively.

scholarly journals Crystal structure of aquabis[2-(1H-benzimidazol-2-yl-κN3)aniline-κN]zinc dinitrate

2015 ◽  
Vol 71 (4) ◽  
pp. m85-m86 ◽  
Author(s):  
Yongtae Kim ◽  
Sung Kwon Kang
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Dihedral Angle ◽  
Equatorial Plane ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Aqua Ligand ◽  
Trigonal Bipyramidal ◽  
Dimensional Network ◽  
Distorted Trigonal Bipyramidal

The cation of the complex title salt, [Zn(C13H11N3)2(H2O)](NO3)2, lies about a twofold rotation axis, which passes through the ZnIIatom and the O atom of the aqua ligand. The ZnIIatom adopts a distorted trigonal–bipyramidal geometry defined by two N atoms in axial positions [angle = 166.24 (7)°], and two N and one O atom in the equatorial plane [range of angles: 115.17 (7)–122.42 (3)°]. The dihedral angle between the imidazole and aniline rings is 23.86 (5)°. In the crystal, N—H...O and O—H...O hydrogen bonds link the components into a three-dimensional network.

scholarly journals Di-μ-aqua-bis{diaqua[μ-4-({4-[bis(2-hydroxyethyl)amino]-6-chloro-1,3,5-triazin-2-yl}amino)benzenesulfonato]sodium(I)}

2012 ◽  
Vol 68 (6) ◽  
pp. m847-m848
Author(s):  
Mei Zhang ◽  
Fu-Yu Sun ◽  
Gui-Zhe Zhao ◽  
Ya-Qing Liu
Keyword(s):  
Hydrogen Bonds ◽  
Title Compound ◽  
Three Dimensional ◽  
Water Molecules ◽  
Coordination Geometry ◽  
Trigonal Bipyramidal Geometry ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal

In the dinuclear title compound, [Na2(C13H15ClN5O5S)2(H2O)6] n , two Na+ cations, disposed about a centre of inversion, are linked by two bridging water molecules. The coordination geometry is based on an O5 donor set defined by four water molecules and a 4-aminobenzenesulfonate O atom in a distorted trigonal–bipyramidal geometry. In the crystal, significant O—H...O, O—H...N and N—H...O hydrogen bonds lead to the formation of a three-dimensional architecture.

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