Oxidant/complexing properties of the methimazole (MeImHS)/iodine system towards palladium and gold metals. Crystal structure of the complex cation [PdII(MeImHS)4]2+ balanced by a tetraiodide/iodide mixture

In the monoclinic crystal structure of the title compound, trans-[Ru(C3H5OS2)2(C18H15P)2]PF6·H2O, the structure of the RuIII complex cation is very similar to that in the orthorhombic crystal of the nonhydrated complex [Noda, Ohuchi, Hashimoto, Fujiki, Itoh, Iwatsuki, Noda, Suzuki, Kashiwabara & Takagi (2006), Inorg. Chem. 45, 1349–1355]. In the present crystal structure, the P—Ru—P bond axes of the complex cations are aligned parallel to the [101] direction.

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The crystal structure of Bis[2-(pyridin-2-ylamino)-4-(pyridin-2-yl)thiazole]iron(II) Bis(tetrafluoroborate) trihydrate

Australian Journal of Chemistry ◽

10.1071/ch9840443 ◽

1984 ◽

Vol 37 (2) ◽

pp. 443 ◽

Cited By ~ 7

Author(s):

AT Baker ◽

HA Goodwin ◽

AD Rae

Keyword(s):

Crystal Structure ◽

Single Crystal ◽

Complex Cation ◽

Monoclinic Space Group ◽

Octahedral Structure ◽

Space Group ◽

X Ray ◽

Disordered Structure ◽

Distorted Octahedral ◽

A Cell

The crystal structure of an iron(II) complex of 2-(pyridin-2-ylamino)-4-(pyridin-2-yl)tliazoe (paptH) has been determined by single-crystal X-ray diffractometry. [Fe(paptH)2] [BF4]2.3H2O is monoclinic, space group P21/c, with Z = 4 in a cell of dimensions a 8.968(6), b 9.038(4), c 41.15(2)�, β 94.81(2)�. The disordered structure was refined to a residual R 0.0826 for 2549 observed reflections. The ligands and anions are orientationally disordered, and the waters of crystallization are positionally disordered. Comprehensive constrained refinement, with 220 parameters for 139 atom positions, produced reliable geometry. The complex cation has a distorted octahedral structure of meridional configuration with both paptH ligands functioning as tridentates.

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Die Kristallstruktur von Di-μ-hydroxo-bis[aquotriamminkobalt(III)]-nitrat-2-Hydrat / The Crystal Structure of Di-μ-hydroxo-bis[aquotriamminecobalt (III)] - nitrate-2-hydrate

Zeitschrift für Naturforschung B ◽

10.1515/znb-1971-1004 ◽

1971 ◽

Vol 26 (10) ◽

pp. 987-989 ◽

Cited By ~ 2

Author(s):

Karl Wieghardt

Keyword(s):

Crystal Structure ◽

Complex Cation ◽

Monoclinic Space Group ◽

Spatial Behaviour ◽

X Ray Diffraction ◽

Space Group ◽

X Ray ◽

Ray Methods

The crystal structure of Di-µ-hydroxy-bis [aquo-triamminecobalt (III)] nitrate-2-hydrate has been determined by x-ray diffraction using counter techniques. The compound crystallizes in the monoclinic space group C2h5-P21/n with a=9.444 (2), b=9.684 (3), c=10.736 (3) Å, β=90.1 (2)°, Z= 2. A total of 1765 independent reflections was used in solving the structure, which was refined to a conventional R1-factor of 0.047. It was not possible to distinguish by x-ray methods between the oxygen and nitrogen atoms of the NH3- and H2O molecules in the complex cation, because of their similarity in point of electrostatical and spatial behaviour.

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Crystal structure of di-μ-hydroxido-bis[aqua(1,10-phenanthroline-κ2N,N′)copper(II)] naphthalene-2,6-dicarboxylate hexahydrate

Acta Crystallographica Section E Crystallographic Communications ◽

10.1107/s2056989015004338 ◽

2015 ◽

Vol 71 (4) ◽

pp. 360-362 ◽

Cited By ~ 2

Author(s):

Daniela Arias-Zárate ◽

María Fernanda Ballesteros-Rivas ◽

Rubén A. Toscano ◽

Jesús Valdés-Martínez

Keyword(s):

Crystal Structure ◽

Binuclear Complex ◽

Complex Cation ◽

Three Dimensional ◽

Water Molecules ◽

Coordination Geometry ◽

Supramolecular Architecture ◽

Aromatic Rings ◽

Phen Molecule ◽

Lattice Water

In the title compound, [Cu2(OH)2(C12H8N2)2(H2O)2](C12H6O4)·6H2O, the two hydroxide groups bridge the two CuIIcations, forming a centrosymmetric binuclear complex cation, in which the CuIIcation is coordinated by a 1,10-phenanthroline (phen) molecule, one water molecule and two bridging hydroxide O atoms in a distorted N2O3square-pyramidal coordination geometry. The naphthalene-2,6-dicarboxylate anion is also located on an inversion centre. In the crystal, O—H...O hydrogen bonds link the cations, anions and lattice water molecules into a three-dimensional supramolecular architecture. Extensive π–π stacking is observed between the parallel or nearly parallel aromatic rings of adjacent phen ligands and naphthalenedicarboxylate anions, the centroid-to-centroid distances ranging from 3.4990 (16) to 3.8895 (16) Å.

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Reactions of copper(II) bromide with 2,6-diacetylpyridine bis(phenyl-hydrazone) (L)-molecular and crystal structure of L and its mixed-valence complex [cuiil2][cui2br4]

Journal of the Serbian Chemical Society ◽

10.2298/jsc211127112r ◽

2021 ◽

pp. 112-112

Author(s):

Marko Rodic ◽

Mirjana Radanovic ◽

Dragana Gazdic ◽

Vukadin Leovac ◽

Berta Barta-Holló ◽

...

Keyword(s):

Crystal Structure ◽

Thermal Stability ◽

Crystal Packing ◽

Complex Cation ◽

Mixed Valence ◽

Molecular Structures ◽

Planar Geometry ◽

Dispersion Interactions ◽

X Ray Crystallography ◽

Thermal Stability Of

Utilizing X-ray crystallography the crystal and molecular structures of 2,6-diacetylpyridine bis(phenylhydrazone) (L) were determined. Energetics of the intermolecular interactions in the crystal structure was assessed with computational methods, revealing that dispersion interactions are dominant. The basic structural unit of the crystal packing is revealed to be the herring-bone type arrangement of L molecules. Assignation of the IR spectrum of L with the aid of DFT calculations was performed. Furthermore, new reactions of L with CuBr2 in different solvents are described, which led to the synthesis of the mixed Cu(II)-Cu(I) complex of the formula [CuIIL2][CuI2Br4] (1), and its structural characterization. In the complex cation, two molecules of tridentate N3 ligand are meridionally arranged in a very distorted octahedral environment of a Cu(II) ion. In [Cu2Br4]2-, bromide ions are arranged in a trigonal-planar geometry around each copper(I) atom. Finally, for the ligand, 1, and the previously synthesized complex [CuL2]Br2, thermal properties were examined. The thermal stability of the com-plexes is lower than that of the ligand and decreases in order: L (250?C) > > [CuL2]Br2 (221?C) > [CuIIL2][CuI2Br4] (212?C). The differences in thermal stability of the complexes are due to differences in packing efficacy of the constitutional ions.

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Crystal structure of bis[trans-dichloridobis(propane-1,3-diamine-κ2N,N′)chromium(III)] dichromate from synchrotron data

Acta Crystallographica Section E Crystallographic Communications ◽

10.1107/s2056989016012755 ◽

2016 ◽

Vol 72 (9) ◽

pp. 1293-1296 ◽

Cited By ~ 1

Author(s):

Dohyun Moon ◽

Keon Sang Ryoo ◽

Jong-Ha Choi

Keyword(s):

Crystal Structure ◽

Hydrogen Bonds ◽

Complex Cation ◽

Chair Conformation ◽

Asymmetric Unit ◽

Intermolecular Hydrogen Bonds ◽

Distorted Octahedral Coordination ◽

Distorted Octahedral ◽

The Mean ◽

Cl Atoms

The structure of the title compound, [CrCl2(tn)2]2[Cr2O7] (tn = propane-1,3-diamine; C3H10N2), has been determined from synchrotron data. The asymmetric unit contains one CrIIIcomplex cation and half a [Cr2O7]2−anion. In the complex cation, the CrIIIion is coordinated by the four N atoms of two propane-1,3-diamine (tn) ligands in the equatorial plane and by two Cl atoms in atransconfiguration, displaying a distorted octahedral coordination sphere. The two six-membered rings in the complex cation have anantichair–chair conformation with respect to each other. The mean Cr—N(tn) and Cr—Cl bond lengths are 2.09 (1) and 2.320 (2) Å, respectively. The slightly bent dichromate anion is disordered over two sets of sites (occupancy ratio = 0.7:0.3) and has a staggered conformation. The crystal structure is stabilized by intermolecular hydrogen bonds involving the NH2groups of the tn ligands as donors and the O atoms of the [Cr2O7]2−anion and chlorido ligands as acceptors.

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Crystal structure of bis[4′-(1,4,7,10-tetraoxa-13- azacyclopentadecan-13-yl)-2,2′:6′,2′′-terpyridine]cobalt(III) tris(perchlorate) methanol monosolvate monohydrate

Acta Crystallographica Section E Crystallographic Communications ◽

10.1107/s2056989015014164 ◽

2015 ◽

Vol 71 (8) ◽

pp. 997-999

Author(s):

Hitomi Ohmagari ◽

Manabu Nakaya ◽

Ryo Ohtani ◽

Masaaki Nakamura ◽

Shinya Hayami

Keyword(s):

Crystal Structure ◽

Crown Ether ◽

Complex Cation ◽

Three Dimensional ◽

Dimensional Network ◽

Centroid Distance ◽

Π Stacking Interaction ◽

Terpyridine Ligands ◽

The Mean ◽

Solvent Molecules

In the title compound, [Co(C25H30N4O4)2](ClO4)3·CH3OH·H2O, the metal atom is coordinated by two tridentate crown ether terpyridine ligands, forming a distorted CoN6octahedron. The three pyridine rings in each crown–terpyridine ligand are approximately coplanar [maximum deviations = 0.088 (12) and 0.102 (15) Å] and the mean planes through the three pyridine rings are perpendicular to each other, making a dihedral angle of 89.95 (17)°. An intramolecular C—H...π interaction is observed between the two terpyridine ligands. In the crystal, O—H...O and C—H...O hydrogen bonds, a π–π stacking interaction [centroid–centroid distance = 3.923 (7) Å] and a C—H...π interaction connect the complex cation, the perchlorate anions and the two types of solvent molecules, forming a three-dimensional network.

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