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 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 Crystal structure of [{FeCl3}2(μ-PCHP)2] [PCHP = 1,3-bis(2-diphenylphosphanylethyl)-3H-imidazol-1-ium] with an unknown solvent

2018 ◽  
Vol 74 (11) ◽  
pp. 1686-1690
Author(s):  
Nadja Stucke ◽  
Christian Näther ◽  
Felix Tuczek
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Solvent Molecule ◽  
Acta Cryst ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Chloride Ligands ◽  
Solvent Molecules ◽  
The Given ◽  
Distorted Trigonal Bipyramidal

The crystal structure of the title compound, bis{μ-1,3-bis[2-(diphenylphosphanyl)ethyl]-1H-imidazole-κ2 P:P′}bis[trichloridoiron(III)], [Fe2Cl6(C31H31N2P2)2] or [{FeCl3}2(μ-PCHP)2] (PCHP = C31H31N2P2), consists of dinuclear complexes that are located about centres of inversion. The FeIII cation is in a distorted trigonal–bipyramidal coordination with three chloride ligands located in the trigonal plane and two P atoms of symmetry-related PCHP ligands occupying the axial positions. Within the centrosymmetric complex, a pair of intramolecular C—H...Cl hydrogen bonds between aromatic CH groups and chloride ligands are found. Individual complexes are linked into layers parallel to (\overline{1}01) by intermolecular C—H...Cl hydrogen bonds. No pronounced intermolecular interactions occur between these layers. This arrangement leaves space for disordered solvent molecules. Electron density associated with these additional solvent molecules was removed with the SQUEEZE procedure in PLATON [Spek (2015). Acta Cryst. C71, 9–18]. The given chemical formula and other crystal data do not take into account the unknown solvent molecule(s).

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 Dibromido{N′-[1-(pyridin-2-yl)ethylidene]picolinohydrazide-κ2 N′,O}cadmium

2012 ◽  
Vol 68 (6) ◽  
pp. m842-m842 ◽  
Author(s):  
Mehmet Akkurt ◽  
Ali Akbar Khandar ◽  
Muhammad Nawaz Tahir ◽  
Seyed Abolfazl Hosseini Yazdi ◽  
Farhad Akbari Afkhami
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Title Compound ◽  
Tridentate Ligand ◽  
Stacking Interactions ◽  
Coordination Geometry ◽  
Trigonal Bipyramidal ◽  
Centroid Distance ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Distorted Trigonal Bipyramidal

The title compound, [CdBr2(C13H12N4O)], was obtained from the reaction of Cd(NO3)2·4H2O with methyl(pyridin-2-yl)methanone picolinoylhydrazone and sodium bromide. The Cd2+ cation is ligated by one O atom and two N atoms of the tridentate ligand and two bromide anions, forming a Br2CdN2O polyhedron with a distorted trigonal–bipyramidal coordination geometry. In the crystal, non-classical C—H...Br hydrogen bonds are observed. In addition, π–π stacking interactions [centroid–centroid distance = 3.7455 (19) Å] contribute to the stabilization of the crystal structure.

scholarly journals Crystal structure of chlorido{tris[2-(isopropylsulfanyl)phenyl]phosphane-κ4 P,S,S′,S′′}nickel(II) trifluoromethanesulfonate

2019 ◽  
Vol 75 (3) ◽  
pp. 350-353
Author(s):  
Nobuhiro Takeda ◽  
Rin Oma ◽  
Masafumi Unno
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Equatorial Plane ◽  
Complex Cation ◽  
Methyl Groups ◽  
Coordination Geometry ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Cl Atom ◽  
Distorted Trigonal Bipyramidal

The complex cation of the title compound, [NiCl{P(C6H4-2-S-i-Pr)3}](CF3SO3), has a slightly distorted trigonal–bipyramidal coordination geometry in which three S atoms are located in the equatorial plane, and one P and one Cl atom in the apical positions. In the cation, there are two intramolecular C—H...S hydrogen bonds. In the crystal, there are some intermolecular C—H...O and C—H...F hydrogen bonds formed between the cation and the anion. The trifluoromethanesulfonate anion and one of the methyl groups are both disordered over two sets of sites with occupancies of 0.629 (17):0.371 (17) and 0.786 (14):0.214 (14), respectively.

scholarly journals Crystal structure and Hirshfeld surface analysis of aquabis(nicotinamide-κN1)bis(2,4,6-trimethylbenzoato-κO)zinc

2017 ◽  
Vol 73 (9) ◽  
pp. 1348-1352 ◽  
Author(s):  
Tuncer Hökelek ◽  
Gülçin Şefiye Aşkın ◽  
Safiye Özkaya ◽  
Hacali Necefoğlu
Keyword(s):  
Crystal Structure ◽  
Surface Analysis ◽  
Crystal Packing ◽  
Rotation Axis ◽  
Complex Molecule ◽  
Hirshfeld Surface ◽  
Hirshfeld Surface Analysis ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Distorted Trigonal Bipyramidal

The asymmetric unit of the title complex, [Zn(C10H11O2)2(C6H6N2O)2(H2O)], contains one half of the complex molecule, and the ZnIIcation and the water O atom lie on a twofold rotation axis. The ZnIIcation is coordinated by two carboxylate O atoms of the two symmetry-related 2,4,6-trimethylbenzoate (TMB) anions and by the water O atom at distances of 2.0311 (16) and 2.076 (2) Å to form a slightly distorted trigonal–planar arrangement, while the distorted trigonal–bipyramidal coordination sphere is completed by the two pyridine N atoms of the two symmetry-related monodentate nicotinamide (NA) ligands at distances of 2.2066 (19) Å in the axial positions. In the crystal, molecules are linkedviaintermolecular N—H...O and O—H...O hydrogen bonds withR22(12),R33(10) andR33(16) ring motifs, forming a double-column structure running along thec-axis direction. The Hirshfeld surface analysis of the crystal structure indicates that the most important contributions for the crystal packing are from H...H (58.4%), H...C/C...H (20.3%) and H...O/O...H (18.3%) interactions.

scholarly journals μ2-Chlorido-chlorido(μ2-4-{[2-(diethylamino)ethyl]imino}pent-2-en-2-olato)bis(tetrahydrofuran-κO)cobalt(II)lithium

IUCrData ◽  
2018 ◽  
Vol 3 (11) ◽  
Author(s):  
Felipe A. Vinocour ◽  
Andrea Soto-Navarro ◽  
Leslie W. Pineda
Keyword(s):  
Coordination Sphere ◽  
Complex Molecule ◽  
Three Dimensional ◽  
Asymmetric Unit ◽  
Monoclinic Symmetry ◽  
Complex Molecules ◽  
Trigonal Bipyramidal ◽  
Dimensional Network ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Distorted Trigonal Bipyramidal

The crystal structure of the title compound, [CoLi(C11H21N2O)Cl2(C4H8O)2], has monoclinic symmetry and comprises one heterometallic binuclear complex molecule in the asymmetric unit. The Co2+ cation is bonded to one oxygen and two nitrogen atoms of a β-ketoiminato ligand and to two chlorido ligands, leading to a distorted trigonal-bipyramidal coordination sphere. One of the Cl ligands and the oxygen atom of the β-ketoiminato ligand are bridging to a Li+ cation, which is further bonded to oxygen atoms of two THF molecules. The resulting coordination sphere is distorted tetrahedral. In the crystal, weak intermolecular C—H...Cl hydrogen bonds are identified that link the complex molecules into a three-dimensional network structure.

[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 hexakis(dmpu)-di-μ2-hydroxido-dialuminium tetraiodide dmpu tetrasolvate [dmpu is 1,3-dimethyltetrahydropyrimidin-2(1H)-one]: a centrosymmetric dinuclear aluminium complex containing AlO5polyhedra

2015 ◽  
Vol 71 (8) ◽  
pp. 895-898 ◽  
Author(s):  
Daniel Lundberg ◽  
Krzysztof Lyczko
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Bond Length ◽  
Title Compound ◽  
Complex Cation ◽  
Coordination Environment ◽  
Trigonal Bipyramidal ◽  
Monodentate Ligands ◽  
Solvent Molecules ◽  
Distorted Trigonal Bipyramidal

The structure of the title compound, [Al2(OH)2(C6H12N2O)6]I4·4C6H12N2O (systematic name: di-μ2-hydroxido-bis{tris[1,3-dimethyltetrahydropyrimidin-2(1H)-one-κO]aluminium} tetraiodide 1,3-dimethyltetrahydropyrimidin-2(1H)-one tetrasolvate), is composed of two Al(C6H12N2O)3moieties linked into a centrosymmetric dinuclear unit by a pair of bridging hydroxide ions. The aluminium cations show a distorted trigonal bipyramidal AlO5coordination environment formed only by monodentate ligands. The Al—O bond lengths are in the range 1.789 (2)–1.859 (2) Å (mean bond length = 1.818 Å). The non-coordinating iodide anions compensate the charge of the complex cation. The remaining solvent molecules and the iodide counter-anions interact with the complex cation by weak non-classical C—H...I and C—H...O hydrogen bonds.

scholarly journals Dichloridodi-μ2-hydroxido-di-μ3-oxido-octaphenyltetratin(IV) dimethyl sulfoxide disolvate

2013 ◽  
Vol 69 (2) ◽  
pp. m91-m91 ◽  
Author(s):  
Shahrbano Foladi ◽  
Parivash Khazaei ◽  
Jafar Attar Gharamaleki ◽  
Behrouz Notash ◽  
Mohammad Kazem Rofouei
Keyword(s):  
Hydrogen Bonds ◽  
Dimethyl Sulfoxide ◽  
Trigonal Bipyramidal ◽  
Title Molecule ◽  
Solvent Molecules ◽  
Distorted Trigonal Bipyramidal ◽  
Oxo Ligands

In the centrosymmetric tetranuclear title molecule, [Sn4(C6H5)8Cl2O2(OH)2]·2C2H6OS, the two independent tinIVatoms show distorted trigonal–bipyramidal SnC2O3and SnC2O2Cl coordination geometries. The four tinIVatoms are bridged by the hydroxo and oxo ligands, forming a ladder-like array of three edge-connected Sn2O2squares. The solvent molecules are linked to the tetranuclear moleculeviaO–H...O hydrogen bonds.

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