scholarly journals Crystal structure of poly[[aqua(μ-2,3-dihydrothieno[3,4-b][1,4]dioxine-5,7-dicarboxylato-κ2O5:O7)[μ-di(pyridin-4-yl)sulfane-κ2N:N′]zinc] 0.26-hydrate]

2017 ◽  
Vol 73 (3) ◽  
pp. 375-377
Author(s):  
Wen-Liang Wu ◽  
Bing Hu
Keyword(s):  
Crystal Structure ◽  
Coordination Environment ◽  
Zinc Cation ◽  
Ethylene Bridge ◽  
Pyridine Ligands ◽  
Trigonal Bipyramidal ◽  
Hydrogen Bonding Interactions ◽  
Carboxylate Groups ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Distorted Trigonal Bipyramidal

The crystal structure of the title polymer, {[Zn(C8H4O6S)(C10H8N2S)(H2O)]·0.26H2O}n, is characterized by a layered arrangement parallel to theabplane. The zinc cation is five-coordinated in a slightly distorted trigonal–bipyramidal coordination environment defined by two pyridine ligands, two carboxylate groups of two thiophene dicarboxylate ligands, and by one water molecule. The ethylene bridge in the dioxine ligand is disordered over two sets of sites [occupancy ratio 0.624 (9):0.376 (9)]. Several hydrogen-bonding interactions of the types O—H...O, C—H...O, C—H...S and C—H...N ensure the cohesion within the crystal structure.

scholarly journals Crystal structure of tetrakis[μ-3-carboxy-1-(1,2,4-triazol-4-yl)adamantane-κ2 N 1:N 2]tetrafluoridodi-μ2-oxido-dioxidodisilver(I)divanadium(V) tetrahydrate

2019 ◽  
Vol 75 (6) ◽  
pp. 808-811 ◽  
Author(s):  
Ganna A. Senchyk ◽  
Andrey B. Lysenko ◽  
Eduard B. Rusanov ◽  
Kostiantyn V. Domasevitch
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Functional Group ◽  
Crystal Packing ◽  
Water Molecules ◽  
Coordination Environment ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Acid Functional Group ◽  
Distorted Trigonal Bipyramidal

The crystal structure of the title molecular complex, [Ag2{VO2F2}2(C13H17N3O2)4]·4H2O, supported by the heterofunctional ligand tr-ad-COOH [1-(1,2,4-triazol-4-yl)-3-carboxyadamantane] is reported. Four 1,2,4-triazole groups of the ligand link two AgI atoms, as well as AgI and VV centres, forming the heterobimetallic coordination cluster {AgI 2(VVO2F2)2(tr)4}. VV exists as a vanadium oxofluoride anion and possesses a distorted trigonal–bipyramidal coordination environment [VO2F2N]. A carboxylic acid functional group of the ligand stays in a neutral form and is involved in hydrogen bonding with solvent water molecules and VO2F2 − ions of adjacent molecules. The extended hydrogen-bonding network is responsible for the crystal packing in the structure.

scholarly journals (μ-Dihydrogen pyrazine-2,3,5,6-tetracarboxylato-κ6O2,N1,O6;O3,N4,O5)bis(diaqualithium) monohydrate

2014 ◽  
Vol 70 (5) ◽  
pp. m172-m172 ◽  
Author(s):  
Wojciech Starosta ◽  
Janusz Leciejewicz
Keyword(s):  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Water Molecules ◽  
Crystal Water ◽  
Rotation Axes ◽  
Trigonal Bipyramidal ◽  
Carboxylate Groups ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Network Of Hydrogen Bonds ◽  
Distorted Trigonal Bipyramidal

The structure of the title compound, [Li2(C8H2N2O8)(H2O)4]·H2O, is composed of dinuclear molecules in which the ligand bridges two symmetry-related LiIions, each coordinated also by two water O atoms, in anO,N,O′-manner. The Li and N atoms occupy special positions on twofold rotation axes, whereas a crystal water molecule is located at the intersection of three twofold rotation axes. The LiIcation shows a distorted trigonal–bipyramidal coordination. Two carboxylate groups remain protonated and form short interligand hydrogen bonds. The molecules are held together by a network of hydrogen bonds in which the coordinating and solvation water molecules act as donors and carboxylate O atoms as acceptors, forming a three-dimensional architecture.

Poly[aqua[μ4-3,3′-(diazenediyl)dibenzoato]zinc]

2012 ◽  
Vol 69 (1) ◽  
pp. 29-32 ◽  
Author(s):  
Lei-Lei Liu ◽  
Feng Zhao
Keyword(s):  
Water Molecule ◽  
Rotation Axis ◽  
Three Dimensional ◽  
Solvothermal Reaction ◽  
Coordination Geometry ◽  
One Dimensional ◽  
Trigonal Bipyramidal ◽  
Carboxylate Groups ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Distorted Trigonal Bipyramidal

The solvothermal reaction of Zn(OAc)2·2H2O with 3,3′-(diazenediyl)dibenzoic acid (H2ADB) in H2O at 393 K afforded the title complex, [Zn(C14H8N2O4)(H2O)]n. The asymmetric unit contains half a ZnIIcation, half an ADB ligand and half a water molecule. Each ZnIIcentre lies on a crystallographic twofold rotation axis and is five-coordinated by four O atoms of bridging carboxylate groups from four ADB ligands and one O atom from a water molecule, forming a distorted trigonal–bipyramidal coordination geometry. The [Zn(H2O)] subunits are bridged by carboxylate groups to give one-dimensional [Zn(μ-COO)4(H2O)]nchains. The chains are linked by ADB ligands into two-dimensional sheets, and these sheets are further connected to neighbouring sheetsviahydrogen bonds (OW—HW...O), forming a three-dimensional hydrogen-bond-stabilized structure with an unprecedented 374175262topology.

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 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 tris(dimethylamido-κN)bis(dimethylamine-κN)zirconium(IV) iodide

2016 ◽  
Vol 72 (1) ◽  
pp. 73-75 ◽  
Author(s):  
Wesley D. Clark ◽  
Gopalakrishna Akurathi ◽  
Henry U. Valle ◽  
T. Keith Hollis
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Solid Oxide Fuel Cells ◽  
Solid Oxide ◽  
Coordination Geometry ◽  
Oxide Fuel ◽  
Trigonal Bipyramidal ◽  
Zirconium Complexes ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Distorted Trigonal Bipyramidal

Zirconium amides have become increasingly popular and useful due to their widespread use as precursors to other zirconium complexes and their use in the production of solid oxide fuel cells (SOFCs). Herein we report the molecular structure of tris(dimethylamido)bis(dimethylamine)zirconium(IV) iodide, [Zr(C2H6N)3(C2H7N)2]I. The bond lengths and bond angles are consistent with a slightly distorted trigonal–bipyramidal coordination geometry around the metal atom. N...I contacts of 3.6153 (15) and 3.5922 (14) Å are consistent with the presence of N—H...I interactions. These N—H...I interactions link the complex cations and iodide anions into extended chains that propagate parallel to theaaxis.

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 Co(II) Amide, Pyrrolate, and Aminopyridinate Complexes: Assessment of their Manifold Structural Chemistry and Thermal Properties

2021 ◽  
Author(s):  
David Zanders ◽  
Nils Boysen ◽  
Michael A. Land ◽  
Jorit Obenlüneschloß ◽  
Jason D. Masuda ◽  
...  
Keyword(s):  
Thermal Characteristics ◽  
Coordination Geometry ◽  
Coordination Environment ◽  
Trigonal Bipyramidal ◽  
Composition And Structure ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Counter Cation ◽  
New Compounds ◽  
Distorted Tetrahedral Coordination ◽  
Distorted Trigonal Bipyramidal

A series of cobalt(II) (silyl)amides, pyrrolates and aminopyridinates were synthesized. Inspired by the dimeric bis(trimethylsilylamido)cobalt(II) complex ([Co(TMSA)2]2), facile salt metathesis employing the ligand 2,2,5,5-tetramethyl-1,2,5-azadisilolidinyl (TMADS) yielded its congener [Co(TMADS)2]2. Novel, heteroleptic Lewis adducts of the former resulted in unusual three- to four-fold coordination geometry around the metal center. Similarily, the salt [Co(TMADS)3Li(DAD)2] was isolated which demonstrates an ion separated Co(II) anion with silylamide ligation and Li+ counter cation. Transpyrrolylation using [Co(TMSA)2]2 was established for the synthesis of bis[N,N’-2-(dimethylaminomethyl)pyrrolyl]cobalt(II), and bis(N-2-(tert-butyliminomethyl)pyrrolyl)cobalt(II). Treatment of CoCl2 with two equivalents of lithiated N,N-dimethyl(N’-tert-butyl)ethane-1-amino-2-amide and N,N-dimethyl(N’-trimethylsilyl)ethane-1-amino-2-amide resulted in the respective Co(II) amido-amines. Reaction of CoCl2 with lithium 4-methyl-N-(trimethylsilyl)pyridine-2-amide yielded the first binuclear, homoleptic Co(II) aminopyridinate complex with a distorted trigonal bipyramidal coordination environment (τ5 = 0.533) for one central Co(II) ion and a weakly distorted tetrahedral coordination geometry (τ4 = 0.845) for the other. All of the new compounds were thoroughly characterized in terms of composition and structure. Finally, the key thermal characteristics of volatility and thermal stability were assessed using a combination of thermogravimetric analysis and complementary bulk sublimation experiments.

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.

{2,6-Bis[(4R)-4-ethoxyoxazolin-2-yl]pyridine}dichloromanganese(II)

2006 ◽  
Vol 62 (4) ◽  
pp. m810-m812
Author(s):  
Jian-Ping Li ◽  
Jian-She Zhao
Keyword(s):  
Title Compound ◽  
Chiral Ligand ◽  
Coordination Environment ◽  
Trigonal Bipyramidal Coordination ◽  
Trigonal Bipyramidal ◽  
Distorted Trigonal Bipyramidal Coordination ◽  
Cation Ratio ◽  
Distorted Trigonal Bipyramidal

The title compound, [MnCl2(C15H19N3O2)], was synthesized from the chiral ligand (R,R)-et-pybox {(R,R)-et-pybox is 2,6-bis[(4R)-4-ethoxyoxazolin-2-yl]pyridine}. The complex is mononuclear and its Mn atom has a distorted trigonal–bipyramidal coordination environment. In the complex, (R,R)-et-pybox is coordinated in a tridentate fashion to the Mn atom via three N atoms, having a pybox–cation ratio of 1:1.

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