Results 21 to 30 of about 11,273 (240)

Halogen⋯halogen contra C–H⋯halogen interactions

open access: yesCrystEngComm, 2014
Pressure affects the competition between C–H⋯X hydrogen bonds and X⋯X halogen⋯halogen interactions. In bromomethane, CH3Br, pressure changes the molecular arrangement of the two solid-state phases of this compound: low-pressure phase α is dominated by halogen⋯halogen interactions, whereas above 1.5 GPa the β phase is governed by C–H⋯halogen bonds.
Marcin Podsiadło   +2 more
openaire   +2 more sources

Stable bromine isotopic composition of atmospheric CH3Br

open access: yesTellus: Series B, Chemical and Physical Meteorology, 2013
Tropospheric methyl bromide (CH3Br) is the largest source of bromine to the stratosphere and plays an important role in ozone depletion. Here, the first stable bromine isotope composition (%26dgr%3B81Br) of atmospheric CH3Br is presented.
Axel Horst   +5 more
doaj   +1 more source

New Oxindole-Bridged Acceptors for Organic Sensitizers: Substitution and Performance Studies in Dye-Sensitized Solar Cells

open access: yesMolecules, 2020
New D-π-A configured organic sensitizers featuring halogen-substituted oxindole-bridged acceptor units have been synthesized for dye-sensitized solar cells applications.
Yogesh S. Tingare   +5 more
doaj   +1 more source

Halogen chemistry reduces tropospheric O3 radiative forcing [PDF]

open access: yesAtmospheric Chemistry and Physics, 2017
Tropospheric ozone (O3) is a global warming gas, but the lack of a firm observational record since the preindustrial period means that estimates of its radiative forcing (RFTO3) rely on model calculations.
T. Sherwen   +4 more
doaj   +1 more source

Characterization of Double Leached Waelz Oxide for Identification of Fluoride Mineral

open access: yesMetals, 2019
Double leached Waelz oxide (DLWO), with 76% zinc, is a secondary zinc containing raw materials obtained by the treatment of electric arc furnace dust. The content of fluoride in DLWO is still too high for direct leaching, as fluoride has a detrimental ...
Suchandra Sar   +4 more
doaj   +1 more source

Bilirubin Oxidase from Myrothecium verrucaria Physically Absorbed on Graphite Electrodes. Insights into the Alternative Resting Form and the Sources of Activity Loss. [PDF]

open access: yesPLoS ONE, 2015
The oxygen reduction reaction is one of the most important chemical processes in energy converting systems and living organisms. Mediator-less, direct electro-catalytic reduction of oxygen to water was achieved on spectrographite electrodes modified by ...
Federico Tasca   +4 more
doaj   +1 more source

Application of Molecular Emissions in Laser-Induced Breakdown Spectroscopy: A Review

open access: yesFrontiers in Physics, 2022
Laser-induced breakdown spectroscopy (LIBS) with advantages of rapid, in situ, and little sample pretreatment has been used in various fields. However, LIBS technology remains challenging in the detection of halogens, isotopes, and samples with similar ...
Fanghao Xu   +4 more
doaj   +1 more source

Waste oil management: Analyses of waste oils from vehicle crankcases and gearboxes [PDF]

open access: yesGlobal Journal of Environmental Science and Management, 2017
In accordance with waste strategy for Turkey, the study was carried out to analyses waste engine crankcase oils and waste gearbox oils generated from vehicle maintenance services in order to determine their suitability for recycling, recovery or final ...
V. Pelitli, Ö. Doğan, H.J. Köroğlu
doaj   +1 more source

Composition, structure and fluid regime of differentiated porphyritic intrusion Magnitogorsk iron-ore deposit (Southern Urals)

open access: yesЛитосфера, 2016
Case study of the differentiated subvolcanic porphyritic intrusion underlying Magnitogorsk skarn-magnetite deposit revealed regular relations between petrochemistry features of the rocks and composition of halogens (Cl and F) in the accessory apatite ...
T. D. Bocharnikova   +3 more
doaj   +2 more sources

THE ROLE OF HALOGENS AND SULFUR IN APATITE FOR EVALUATION OF Cu-Ni, Fe-Ti AND Au ORES IN LATE PALAEOZOIC GABBROIDS OF THE WEST MAGNITOGORSK ZONE (SOUTH URALS) [PDF]

open access: yesМинералогия, 2015
Late Paleozoic gabbroids of West Magnitogorsk area were classified according to correlations between halogens and sulfur in apatites. For Hudolazovsky complex specialized in Cu-Ni mineralization apatites with the highest content of sulphate sulphur are ...
V.V. Holodnov   +4 more
doaj  

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