Reaction of RuO4 with KrF2: A clear-cut method to prepare ruthenium oxide tetrafluoride

1989 ◽  
Vol 67 (11) ◽  
pp. 1729-1731 ◽  
Author(s):  
Laurent Meublat ◽  
Monique Lance ◽  
Roland Bougon
Keyword(s):  
Powder Diffraction ◽  
Infrared Absorption ◽  
Elemental Analysis ◽  
Ruthenium Oxide ◽  
Infrared Absorption Spectroscopy ◽  
Ruthenium Tetroxide ◽  
X Ray ◽  
Clear Cut ◽  
Cut Method ◽  
Krypton Difluoride

The fluorination of ruthenium tetroxide RuO4 was attempted by using either fluorine or krypton difluoride KrF2 in HF solution. Of the two fluorinating agents, only KrF2 was found to be powerful enough to react with RuO4 and to transform it into ruthenium oxide tetrafluoride RuOF4. This oxide fluoride of ruthenium VI was characterized by elemental analysis, X-ray powder diffraction, and infrared absorption spectroscopy. Keywords: ruthenium tetroxide, ruthenium oxide tetrafluoride, krypton difluoride, fluorination.

scholarly journals Synthesis, characterization, and thermal behavior of amidosulfonates of transition metals in air and nitrogen atmosphere

2020 ◽  
Vol 45 (4) ◽  
pp. 32-39
Author(s):  
Jose Marques Luiz ◽  
Ronaldo Spezia Nunes
Keyword(s):  
Thermal Analysis ◽  
Infrared Absorption ◽  
Elemental Analysis ◽  
Nitrogen Atmosphere ◽  
Direct Reaction ◽  
Infrared Absorption Spectroscopy ◽  
X Ray Diffraction ◽  
X Ray ◽  
Metal Carbonate ◽  
Dta Curves

The amidosulfonates of Mn2+, Co2+, Ni2+, Cu2+ and Zn2+ were prepared by the direct reaction between the metal carbonate and the amidosulfonic acid with heating and stirring. The compounds were characterized by infrared absorption spectroscopy (IRFT), elemental analysis, thermal analysis (TG and DTA) and X-ray diffraction by the powder method. The absorptions observed in IR spectra are associated with N-H and O-H stretching, as well as symmetrical and asymmetric S-O stretching in the sulfonic group. The compounds present X-ray diffraction pattern with well-defined reflections, showing no evidence of isomorphism. The TG-DTA curves allowed to establish the stoichiometry of compounds as M(NH2SO3)2.xH2O, where M = Mn2+, Co2+, Ni2+, Cu2+ and Zn2+ and x ranging from 1 to 4. Dehydration leads to the formation of stable anhydrous. In all cases the respective sulfates are formed as an intermediate. After consecutive steps of decomposition, the respective oxides were obtained: Mn3O4, CoO, NiO, CuO and ZnO. The TG-DTA curves are characteristic for each sample, with thermal events related to dehydration and ligand decomposition.

Cobalt(II) Mercury Tetrathiocyanate Complexes with Lewis Bases

1973 ◽  
Vol 51 (3) ◽  
pp. 438-447 ◽  
Author(s):  
R. Makhija ◽  
L. Pazdernik ◽  
R. Rivest
Keyword(s):  
Magnetic Susceptibility ◽  
Powder Diffraction ◽  
Elemental Analysis ◽  
Far Infrared ◽  
Crystalline Solid ◽  
Ultraviolet Spectroscopy ◽  
X Ray ◽  
Lewis Bases ◽  
Polydentate Ligands

A new series of octahedral cobalt(II) complexes are formed when CoX2(X = Cl, Br, I, SCN) reacts with Hg(SCN)2 in the presence of Lewis bases. These complexes of stoichiometry CoHg(SCN)4•2L (L = THF, dioxane, pyridine, aniline) are pink to violet solids which slowly decompose to the blue crystalline solid, CoHg(SCN)4, the stable magnetic susceptibility standard. On further reaction of CoHg(SCN)4•2THF with mono-, bi-, and polydentate ligands in dry ethanol, complexes of the following types are obtained: CoHg(SCN)4•2L (L = PΦ3), CoHg(SCN)4•2LL (LL = trien), CoHg(SCN)4•3LL (LL = en, bipy), and CoHg(SCN)4•4LL (LL = phen). The stoichiometry of these were determined by elemental analysis. Possible structures of these are discussed with the help of mid and far infrared, visible, and ultraviolet spectroscopy, magnetic susceptibility, and X-ray powder diffraction. Some new i.r. bands like Co—P, Co—N, and Hg—S are assigned in the low region.

Characterization and Electrical Conductivity of Dithallium Phthalocyanine (Tl2Pc)

1999 ◽  
Vol 03 (06) ◽  
pp. 397-405 ◽  
Author(s):  
TAKEO SUGA ◽  
SEIJI ISODA ◽  
TAKASHI KOBAYASHI
Keyword(s):  
Electrical Conductivity ◽  
Electron Diffraction ◽  
Powder Diffraction ◽  
Elemental Analysis ◽  
Present Method ◽  
X Ray ◽  
Diffraction Electron ◽  
Isolated Compound

Dithallium phthalocyanine ( Tl 2 Pc ) has been synthesized from pure Tl metal and o-phthalodinitrile. The isolated compound was characterized by elemental analysis, X-ray powder diffraction, electron diffraction and EDX spectroscopy. Based on these results, the compound synthesized by the present method was concluded to be Tl 2 Pc . The electrical conductivity of this powdery Tl 2 Pc was measured and it exhibited the semiconductive property, in contrast with a previous report.

Retention of (4,4) Connectivity in the Absence of π…π Interactions in a Cadmium tris-Dicyanamide Compound

2006 ◽  
Vol 59 (2) ◽  
pp. 115 ◽  
Author(s):  
Moumita Biswas ◽  
Stuart R. Batten ◽  
Paul Jensen ◽  
Samiran Mitra
Keyword(s):  
Thermogravimetric Analysis ◽  
Ir Spectroscopy ◽  
Powder Diffraction ◽  
Elemental Analysis ◽  
Octahedral Geometry ◽  
X Ray ◽  
Π Interactions ◽  
X Ray Crystallography ◽  
Extended Sheets

An anionic cadmium tris-dicyanamide compound (Et4N)[Cd(N(CN)2)3]·3/4H2O 1 has been synthesized and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis, X-ray powder diffraction, and X-ray crystallography. The anions form extended sheets with retention of (4,4) connectivity in the absence of π···π interactions within the cation layers, and with octahedral geometry about individual CdII ions.

The Synthesis of InP drom Indium Halides and Tris(Trimethylsilyl)Phosphine

1988 ◽  
Vol 131 ◽  
Author(s):  
Matthew D. Healy ◽  
Paul E. Laibinis ◽  
Paul D. Stupik ◽  
Andrew R. Barron
Keyword(s):  
Powder Diffraction ◽  
Elemental Analysis ◽  
X Ray

ABSTRACTInP has been prepared by the reaction of InX3 (X = Cl, Br, I) with P(SiMe3)3. The intermediates and product have been characterized by XPS, elemental analysis and X-ray powder diffraction.

SYNTHESIS, POTENTIOMETRIC TITRATIONS, AND SPECTRA OF PYRAZOLONES

1953 ◽  
Vol 31 (11) ◽  
pp. 1025-1039 ◽  
Author(s):  
Paul E. Gagnon ◽  
Jean L. Boivin ◽  
René J. Paquin
Keyword(s):  
Absorption Spectra ◽  
Powder Diffraction ◽  
Infrared Absorption ◽  
Dissociation Constants ◽  
Alkyl Halides ◽  
X Ray ◽  
Alkyl Radicals ◽  
Potentiometric Titrations ◽  
Infrared Absorption Spectra ◽  
Diffraction Patterns

Monosubstituted benzoylacetic esters, obtained by condensation of n-alkyl halides with ethyl benzoylacetate, were reacted with hydrazine and phenylhydrazine to give 3-phenyl and 1,3-diphenyl 5-pyrazolones monosubstituted in position 4 by alkyl radicals R (R = H, CnH2n+1(n-1 to 10), and C6H5CH2.). The dissociation constants of the pyrazolones were determined by potentiometric titrations. A study was made of the ultraviolet absorption spectra in both neutral and acid medium and of the infrared absorption spectra. X-ray powder diffraction patterns and data of the pyrazolones were obtained.

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