Tri-ethyl-ammonium hexa-bromido-uranate(IV) di-chloro-methane monosolvate, [(CH)NH][UBr]·CHCl, was obtained in the form of dark-brown crystals from the reaction of uranium penta-bromide with NEt and ethyl-ene glycol in di-chloro-methane at low temperature. During the progress of the reaction, the reduction of uranium(V) to uranium(IV) was observed, whose associated oxidation product could not be identified. The uranium atom of the [UBr] anion is coordinated by six bromido ligands in the shape of an octa-hedron. Between cations, anion and solvent mol-ecules of crystallization, numerous C-H⋯Hal hydrogen-bond-like inter-actions are present, leading to a three-dimensional network structure.
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http://dx.doi.org/10.1107/S205698902001169X | DOI Listing |
Acta Crystallogr E Crystallogr Commun
October 2024
Department of Chemistry, KU Leuven, Biomolecular Architecture, Celestijnenlaan 200F, Leuven (Heverlee), B-3001, Belgium.
Two new zinc(II) complexes, tri-ethyl-ammonium di-chlorido-[2-(4-nitro-phen-yl)-4-phenyl-quinolin-8-olato]zinc(II), (CHN){Zn(CHNO)Cl] (), and bis-(tri-ethyl-ammonium) {2,2'-[1,4-phenyl-enebis(nitrilo-methyl-idyne)]diphenolato}bis-[di-chlorido-zinc(II)], (CHN)[Zn(CHNO)Cl] (), were synthesized and their structures were determined using ESI-MS spectrometry, H NMR spectroscopy, and single-crystal X-ray diffraction. The results showed that the ligands 2-(4-nitro-phen-yl)-4-phenyl-quinolin-8-ol () and ,'-bis-(2-hy-droxy-benzyl-idene)benzene-1,4-di-amine () were deprotonated by tri-ethyl-amine, forming the counter-ion EtNH, which inter-acts an N-H⋯O hydrogen bond with the ligand. The Zn atoms have a distorted trigonal-pyramidal () and distorted tetra-hedral () geometries with a coord-ination number of four, coordinating with the ligands N and O atoms.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
October 2020
Anorganische Chemie, Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany.
Tri-ethyl-ammonium hexa-bromido-uranate(IV) di-chloro-methane monosolvate, [(CH)NH][UBr]·CHCl, was obtained in the form of dark-brown crystals from the reaction of uranium penta-bromide with NEt and ethyl-ene glycol in di-chloro-methane at low temperature. During the progress of the reaction, the reduction of uranium(V) to uranium(IV) was observed, whose associated oxidation product could not be identified. The uranium atom of the [UBr] anion is coordinated by six bromido ligands in the shape of an octa-hedron.
View Article and Find Full Text PDFHeliyon
July 2019
Department of Physics, Periyar University PG Extension Centre, Dharmapuri, 636-701, Tamil Nadu, India.
Tri Ethyl Ammonium Picrate (TEAP) and Yttrium (Y) ions doped single crystals were grown by slow evaporation technique at room temperature. The estimated band gap of the pure TEAP, 0.10 mol % and 0.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
March 2018
Institut für Biochemie, Ernst-Moritz-Arndt Universität Greifswald, Felix-Hausdorff-Strasse 4, D-17487 Greifswald, Germany.
The reaction between 3,3'-[(3-meth-oxy-4-hy-droxy-phen-yl)methanedi-yl]bis-(4-hy-droxy-2-chromen-2-one) and tri-ethyl-amine in methanol yielded the title compound tri-ethyl-ammonium 3-[(4-hy-droxy-3-meth-oxy-phen-yl)(4-hy-droxy-2-oxo-2-chromen-3-yl)meth-yl]-2-oxo-2-chromen-4-olate, CHN·CHO or (NHEt)(CHO), which crystallized directly from its methano-lic mother liquor. The non-deprotonated coumarol substituent shares its H atom with the deprotonated coumarolate substituent in a short negative charge-assisted hydrogen bond in which the freely refined H atom is moved from its parent O atom towards the acceptor O atom, elongating the covalent O-H bond to 1.18 (3) Å.
View Article and Find Full Text PDFActa Crystallogr Sect E Struct Rep Online
January 2014
Department of Chemistry, Faculty of Science, Okayama University, Okayama 700-8530, Japan.
IN THE CRYSTAL STRUCTURE OF THE TITLE COMPOUND [SYSTEMATIC NAME: bis-(tri-ethyl-ammonium) 2,5-di-chloro-3,6-dioxo-cyclo-hexa-1,4-diene-1,4-diolate], 2C6H16N(+)·C6Cl2O4 (2-), the chloranilate anion lies on an inversion center. The tri-ethyl-ammonium cations are linked on both sides of the anion via bifurcated N-H⋯(O,O) and weak C-H⋯O hydrogen bonds to give a centrosymmetric 2:1 aggregate. The 2:1 aggregates are further linked by C-H⋯O hydrogen bonds into a zigzag chain running along [01-1].
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