scholarly journals cis-Diammine[3-(3-chloro-7-methoxy-9,10-dihydroacridin-9-ylideneamino)propan-1-amine-κ2N,N′]platinum(II) dinitrate

IUCrData ◽  
2016 ◽  
Vol 1 (4) ◽  
Author(s):  
Young Cheun ◽  
Seongmin Lee
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Anticancer Activity ◽  
Secondary Amine ◽  
Complex Cation ◽  
Platinum Complex ◽  
Complex Salt ◽  
Title Complex

The title complex salt, [Pt(C16H17N3)(NH3)2](NO3)2, is of interest with respect to anticancer activity. The secondary amine of 9-aminoacridine coordinates with the platinum(II) atom, leading to imine–platinum complex cation formation. The crystal structure displays extensive N—H...O and N—H...N hydrogen bonding and weak C—H...Cl and C—H...O hydrogen bonding.

scholarly journals Crystal structure of the salt bis(triethanolamine-κ3N,O,O′)cobalt(II) bis[2-(2-oxo-2,3-dihydro-1,3-benzothiazol-3-yl)acetate]

2016 ◽  
Vol 72 (3) ◽  
pp. 420-423 ◽  
Author(s):  
Jamshid M. Ashurov ◽  
Nodira J. Obidova ◽  
Hudaybergen B. Abdireymov ◽  
Bakhtiyar T. Ibragimov
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Acetic Acid ◽  
Complex Cation ◽  
Title Complex ◽  
Two Dimensional ◽  
Ethanol Group ◽  
The Third ◽  
Dimensional Network ◽  
Hydroxy Groups

The reaction of 2-(2-oxo-2,3-dihydro-1,3-benzothiazol-3-yl)acetic acid (NBTA) and triethanolamine (TEA) with Co(NO3)2results in the formation of the title complex, [Co(C6H15NO3)2](C9H6NO3S)2, which is formed as a result of the association of bis(triethanolamine)cobalt(II) and 2-(2-oxo-2,3-dihydro-1,3-benzothiazol-3-yl)acetate units. It crystallizes in the monoclinic centrosymmetric space groupP21/c, with the CoIIion situated on an inversion centre. In the complex cation, the CoIIion is octahedrally coordinated by twoN,O,O′-tridentate TEA molecules with a facial distribution and the N atoms in atransarrangement. Two ethanol groups of each TEA molecule form two five-membered chelate rings around the CoIIion, while the third ethanol group does not coordinate to the metal. The free and coordinating hydroxy groups of the TEA molecules are involved in hydrogen bonding with the O atoms of NBTA anions, forming an infinite two-dimensional network extending parallel to thebcplane.

scholarly journals Crystal structure of bis(acetylacetonato-κ2O,O′)(tetrahydrofuran-κO)(trifluoromethanesulfonato-κO)iron(III)

2015 ◽  
Vol 71 (10) ◽  
pp. 1165-1168
Author(s):  
Casseday P. Richers ◽  
Jeffery A. Bertke ◽  
Thomas B. Rauchfuss
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Site Occupancy ◽  
Title Complex ◽  
Two Dimensional ◽  
Hydrogen Bonding Interactions ◽  
Octahedral Environment ◽  
Distorted Octahedral ◽  
Length Range ◽  
A Site

The mononuclear title complex, [Fe(CF3O3S)(C5H7O2)2(C4H8O)] or [Fe(acac)2(OTf)(THF)] (acac = acetylacetonate; OTf = trifluoromethanesulfonate; THF = tetrahydrofuran), (I), consists of one six-coordinate Fe3+atom in a slightly distorted octahedral environment [Fe—O bond-length range = 1.9517 (11)–2.0781 (11) Å]. The triflate ligand was found to be disordered over two sets of sites, with a site-occupancy ratio of 0.622 (16):0.378 (16). Weak intermolecular C—H...O and C—H...F hydrogen-bonding interactions generate a two-dimensional supramolecular structure lying parallel to (100). This is only the second crystal structure reported of a mononuclear bis(acetylacetonato)iron(III) complex.

scholarly journals Crystal structure of di-μ-hydroxido-κ4O:O-bis[bis(acetylacetonato-κ2O,O′)cobalt(III)]

2015 ◽  
Vol 71 (8) ◽  
pp. 983-985 ◽  
Author(s):  
Casseday P. Richers ◽  
Jeffery A. Bertke ◽  
Thomas B. Rauchfuss
Keyword(s):  
Molecular Structure ◽  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Transition Metal ◽  
Crystal Packing ◽  
Title Complex ◽  
Asymmetric Unit

The dinuclear title complex, [Co2(C5H7O2)4(μ-OH)2] or [Co(acac)2(μ-OH)]2, where acac is acetylacetonate, is centrosymmetric with half of the molecule per asymmetric unit. The molecular structure is a dimer of octahedrally coordinated CoIIIatoms with four O atoms from two chelating acac ligands and two O atoms from bridging hydroxide ligands. The crystal packing features weak C—H...O interactions between neighboring molecules, leading to the formation of chains normal to theacplane. The hydroxide H atoms are not involved in hydrogen bonding because of the bulky acac ligands. This is the first crystal structure reported of a dimeric transition metal bis-acac complex with OH−as the bridging group.

scholarly journals Bis[μ-N,N′-(pyridine-2,6-diyl)bis(trimethylsilylamido)-1κ2N1,N2;2:3κ2N6:N6]bis(tetrahydrofuran)-2:3κ2O-1-nickel(II)-2,3-lithium(I)

IUCrData ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Alan M. Boltin ◽  
Gary L. Guillet
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Electrostatic Interactions ◽  
Rotational Symmetry ◽  
Title Complex ◽  
Planar Geometry ◽  
Intermolecular Hydrogen Bonding ◽  
Trimethylsilyl Group ◽  
Square Planar ◽  
Dominant Feature

The title complex, [Li2Ni(C11H21N3Si2)2(C4H8O)2], is a trimetallic complex of two LiIcations and a NiIIcation bridged by twoN,N′-(pyridine-2,6-diyl)bis(trimethylsilylamide) ligands that crystallizes in theFdd2 space group. The molecule hasC2rotational symmetry, with the NiIIcation located on the twofold axis. The coordination sphere of the NiIIcation is composed of two amido N and two pyridyl N-atom donors in a distorted square-planar geometry. The LiIcations are coordinated by two amido N-atom donors and a tetrahydrofuran molecule with a long interaction with a pyridyl N-atom donor. The coordinating tetrahydrofuran ligand and a trimethylsilyl group are disordered. Intra- or intermolecular hydrogen bonding, as well as π–π stacking, are not observed between the molecules, likely indicating that weak electrostatic interactions are the dominant feature leading to the crystal structure.

scholarly journals Bis(4-aminophenylhydroxamato-κ2 O,O′)copper(II) methanol disolvate

IUCrData ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Yansi Zhao ◽  
Yanmei Chen
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Title Complex ◽  
Planar Geometry ◽  
Asymmetric Unit ◽  
Bidentate Ligands ◽  
Metal Centre ◽  
Square Planar ◽  
Solvent Molecules

In the title complex, [Cu(C7H7N2O2)2]·2CH3OH, the metal centre is coordinated by two 4-aminophenylhydroxamate bidentate ligands, in a distorted square-planar geometry. The asymmetric unit is completed by two methanol solvent molecules, which are involved in hydrogen bonding with N—H functionalities of the free hydroxamate groups. The crystal structure also features N—H...O bonds formed by the NH2 groups, and O—H...O hydrogen bonds with the methanol solvent molecules as donors.

scholarly journals Crystal structure of cis-(1,4,8,11-tetraazacyclotetradecane-κ4 N)bis(thiocyanato-κN)chromium(III) bromide from synchrotron X-ray diffraction data

2021 ◽  
Vol 77 (3) ◽  
pp. 222-225
Author(s):  
Dohyun Moon ◽  
Jong-Ha Choi
Keyword(s):  
Crystal Structure ◽  
Complex Cation ◽  
Title Complex ◽  
Asymmetric Unit ◽  
X Ray Diffraction ◽  
Intermolecular Hydrogen Bonds ◽  
X Ray ◽  
Bromide Anion ◽  
Distorted Octahedral Coordination ◽  
Distorted Octahedral

The crystal structure of the title complex, cis-[Cr(NCS)2(cyclam)]Br (cyclam = 1,4,8,11-tetraazacyclotetradecane, C10H24N4), has been determined from synchrotron X-ray data. The asymmetric unit contains one [Cr(NCS)2(cyclam)]+ cation and one bromide anion. The CrIII ion of the complex cation is coordinated by the four N atoms of the cyclam ligand and by two N-coordinating NCS groups in a cis arrangement, displaying a distorted octahedral coordination sphere. The Cr—N(cyclam) bond lengths are in the range 2.075 (3) to 2.081 (3) Å while the average Cr—N(NCS) bond length is 1.996 (16) Å. The macrocyclic cyclam moiety adopts the most stable cis-V conformation. The crystal structure is stabilized by intermolecular hydrogen bonds involving the cyclam N—H groups as donor groups, and the bromide anion and the S atom of one of the NCS ligands as acceptor groups.

scholarly journals Crystal structure of μ-fluorido-bis{(η4-cyclooctadiene)[hexafluoridoantimonato(V)]platinum(II)} hexafluoridoantimonate(V) hydrogen fluoride 0.75-solvate

2016 ◽  
Vol 72 (1) ◽  
pp. 14-16
Author(s):  
Konrad Seppelt ◽  
Roland Friedemann
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Hydrogen Fluoride ◽  
Bond Angle ◽  
Complex Cation ◽  
Three Dimensional ◽  
The Third ◽  
Hydrogen Bonding Interactions ◽  
Square Planar ◽  
Solvent Molecules

In the complex cation of the binuclear solvated title salt, [Pt2F(SbF6)2(C8H12)2]SbF6·0.75HF, an F atom bridges the two platinum(II) atoms with a bond angle of 123.3 (2)°. The corresponding Pt—F bond lengths are in the range of other fluorine-bridged binuclear platinum(II) complexes. Two of the three SbF6−anions each coordinate with one F atom to one platinum(II) atom. Including the η4-bound cyclooctadiene (COD) ligands, the overall coordination sphere of each platinum(II) atom is square-planar. The third SbF6−anion is not bound to the complex. Hydrogen fluoride is present in the crystal structure as a solvent disordered over three positions, each with an occupancy of 0.25. F...F distances of 2.5512 (7), 2.6076 (8) and 3.2215 (10) Å to surrounding SbF6−anions are indicative of F—H...F hydrogen-bonding interactions although no H atoms could be localized for the disordered solvent molecules. The resulting hydrogen-bonded network is three-dimensional.

Der zweikernige Fe(III)-Komplex von N,N,N',N'-Tetrakis(2-pyridylmethyl)-2-hydroxy-1,3-diaminopropan - Molekül- und Kristallstruktur und seine Wechselwirkung mit Montmorillonit / The Binuclear Fe(III) Complex of N,N,N',N'-Tetrakis(2-pyridylmethyl)-2-hydroxy-1,3-diaminopropane - Molecular and Crystal Structure and its Interaction with Montmorillonite

1994 ◽  
Vol 49 (8) ◽  
pp. 1051-1058 ◽  
Author(s):  
Armin Weiss ◽  
Stefan Dick
Keyword(s):  
Crystal Structure ◽  
Cation Exchange ◽  
Complex Cation ◽  
Complex Salt ◽  
Crystal Data ◽  
X Ray ◽  
Data Space ◽  
Interlayer Region ◽  
Coordination Spheres ◽  
Nitrate Anions

Yellow crystals of [Fe2(HPTP)(OH)(NO3)2](Cl04)2 (HPTP = N,N,N',N'-tetrakis(2-pyridyl- methyl)-2-hydroxy-1,3-diaminopropane) were grown by slow diffusion of diethylether into a solution of the complex salt in acetonitrile. Crystal data: space group R3̅, a = 4280,1(15) pm, c = 1147,6(7) pm, Z = 18. The complex exhibits a binuclear Fe(III) core with (μ-oxo)(μ-alkoxo) ligands as bridging units. The nitrate anions coordinate each with a short and a long Fe-O bond. The coordination spheres of the iron atoms can be looked at as distorted edge-shearing pentagonal bipyramides. The complex cation was introduced into the interlayer region of montmorillonite by cation exchange in acetonitrile. The results of X-ray, IR- and UV/VIS experiments suggest that the cation exchange is reversible. In the interlayer region the dinuclear cations are arranged in a rather loosely packed way, thus creating channels similar to those in pillared smectites or zeolites, respectively.

scholarly journals Crystal structure of a third polymorph of tris(acetylacetonato-κ2O,O′)iron(III)

2015 ◽  
Vol 71 (12) ◽  
pp. m228-m229 ◽  
Author(s):  
Tessa M. Baker ◽  
Kevin M. Howard ◽  
William W. Brennessel ◽  
Michael L. Neidig
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonding ◽  
Intermolecular Interactions ◽  
Coordination Sphere ◽  
General Position ◽  
Title Complex ◽  
Asymmetric Unit ◽  
Mass Ratio ◽  
Monoclinic System ◽  
Two Component

In the structure of the title complex, [Fe(C5H7O2)3] or Fe(acac)3, the asymmetric unit contains one molecule in a general position. The coordination sphere of the FeIIIatom is that of a slightly distorted octahedron. The crystal under investigation was a two-component pseudo-merohedral twin in the monoclinic system with a β angle close to 90°. Twin law [100/0-10/00-1] reduced theR1 residual [I> 2σ(I)] from 0.0769 to 0.0312, and the mass ratio of twin components refined to 0.8913 (5):0.1087 (5). In the crystal, molecules are arranged in sheets normal to [001]vianon-classical C—H...O hydrogen bonding. No other significant intermolecular interactions are observed. The structure is a new polymorph of Fe(acac)3and is isotypic with one polymorph of its gallium analog.

scholarly journals Crystal structure ofcatena-poly[[[triaqua(4-cyanobenzoato-κO)nickel(II)]-μ-4,4′-bipyridine-κ2N:N′] 4-cyanobenzoate]

2015 ◽  
Vol 71 (11) ◽  
pp. m197-m198 ◽  
Author(s):  
Alfredo A. Morales-Tapia ◽  
Raúl Colorado-Peralta ◽  
Angélica M. Duarte-Hernández ◽  
Angelina Flores-Parra ◽  
José María Rivera
Keyword(s):  
Crystal Structure ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Complex Salt ◽  
Octahedral Geometry ◽  
Title Complex ◽  
Water Molecules ◽  
Supramolecular Architecture ◽  
Polymeric Complex ◽  
Polymeric Chains

In the title polymeric complex salt, {[Ni(C8H4NO2)(C10H8N2)(H2O)3](C8H4NO2)}n, the NiIIcation is coordinated by a 4-cyanobenzoate anion, two 4,4′-bipyridine ligands and three water molecules in a distorted N2O4octahedral geometry. The 4,4′-bipyridine ligands bridge the NiIIcations to form polymeric chains of the title complex cations, propagating along thec-axis direction. The dihedral angle between the pyridine rings of the 4,4′-bipyridine ligand is 24.9 (6)°. In the crystal, the uncoordinating 4-cyanobenzoate anions link with the complex cationsviaO—H...O hydrogen bonds into a three-dimensional supramolecular architecture. Weak C—H...O, C—H...N interactions and π–π stacking [centroid-to-centroid distances = 3.566 (4) and 3.885 (4) Å] are also observed in the crystal.

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