Results 41 to 50 of about 147,621 (248)

Reactions of technetium hexafluoride with nitric acid, nitrosyl fluoride, and nitryl fluoride [PDF]

open access: yes, 1970
Stoichiometry of technetium hexafluoride reactions is studied. Magnetic properties and infrared spectra of reaction products are studied and compared with those of analogous complexes of the hexafluorides of tungsten, rhenium, and ...
Holloway, J. H., Selig, H.
core   +1 more source

Synthesis and Characterization of Barium Hexafluoridoosmates

open access: yesCrystals, 2017
Two barium hexafluoridoosmates, Ba(OsF6)2 and BaOsF6, were synthesized and were characterized for the first time using X-ray powder and single crystal diffraction, IR spectroscopy, as well as NMR spectroscopy in anhydrous hydrogen fluoride.
Sergei I. Ivlev   +5 more
doaj   +1 more source

Raman scattering in osmium under pressure

open access: yes, 2005
The effect of pressure and temperature on the Raman-active phonon mode of osmium metal has been investigated for pressures up to 20 GPa and temperatures in the range 10--300 K.
Loa, I.   +3 more
core   +1 more source

Theoretical calculations of an osmium molecular switch [PDF]

open access: yes, 2013
Indexación: Web of Science; Scielo.ABSTRACT We have investigated the molecular, electronic and optical properties of the [Os(tpy-py)2]2+ complex (tpy-py = 4'-(4-pyridyl)-2,2':6',2"-terpyridine) and its protonated derivative [Os(tpy-pyH)2]4+ through ...
Arratia-Pérez, Ramiro   +2 more
core   +1 more source

Mantle heterogeneity during the formation of the North Atlantic Igneous Province: Constraints from trace element and Sr-Nd-Os-O isotope systematics of Baffin Island picrites [PDF]

open access: yes, 2004
Sr-Nd-Os-O isotope and major and trace element data from ~62 Ma picrites from Baffin Island constrain the composition of mantle sources sampled at the inception of North Atlantic Igneous Province (NAIP) magmatism.
Eiler, J.   +5 more
core   +1 more source

Osmium Nanoparticles-Polypropylene Hollow Fiber Membranes Applied in Redox Processes

open access: yesNanomaterials, 2021
Composite membranes play a very important role in the separation, concentration, and purification processes, but especially in membrane reactors and membrane bioreactors.
Gheorghe Nechifor   +9 more
doaj   +1 more source

Method Study on the Separation and Enrichment of Rhenium Measured by Negative Thermal Ionization Mass Spectrometry

open access: yesYankuang ceshi, 2013
In Re-Os isotope chronology, the acetone extraction process is quicker and easier compared to the anion exchange method. The Re solution which was separated and purified by acetone extraction is suitable for the measurement by Inductively Coupled Plasma ...
WANG Li-bing   +5 more
doaj  

Improved surface-enhanced Raman and catalytic activities of reduced graphene oxide–osmium hybrid nano thin films [PDF]

open access: yesRoyal Society Open Science, 2017
Reduced graphene oxide–osmium (rGO-Os) hybrid nano dendtrites have been prepared by simple liquid/liquid interface method for the first time. The method involves the introduction of phase-transfered metal organic precursor in toluene phase and GO ...
C. Kavitha   +3 more
doaj   +1 more source

Towards conformationally-locked difluorosugar analogues : an unexpected sense of dihydroxylation [PDF]

open access: yes, 2004
Difluorinated cyclooctenones, synthesised using RCM, can be used as templates for stereoselective oxidative transformations to products that undergo transannular reactions to afford conformationally-locked analogues of 2-deoxy-2,2-difluorosugars with ...
Fawcett, John   +6 more
core   +1 more source

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