Results 31 to 40 of about 71,492 (345)
Molecules, 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
Alternatives to free molecular halogens as chemoselective reactants: Catalysis of organic reactions with reusable complexes of halogen metal salts [PDF]
, 2012 Organometallic complexes of halogen metallic salts have been used as catalysts in different organic reactions, mainly the oxidation of organic compounds. Their use has not only allowed the reduction of the amounts of catalyst (since they can be reused)
Rossi, Laura Isabel +1 more
core +1 more source
Volcanica, 2019 We investigate sulphur, chlorine and fluorine release during explosive, effusive and intrusive phases the 2011 Cordón Caulle eruption, with a focus on halogen devolatilization. Petrological analysis shows halogen release to have been promoted by isobaric
C Ian Schipper +8 more
doaj +1 more source
Halogen⋯halogen contra C–H⋯halogen interactions
CrystEngComm, 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
Ions at the air-water interface: An end to one hundred year old mystery? [PDF]
, 2009 Availability of highly reactive halogen ions at the surface of aerosols has tremendous implications for the atmospheric chemistry. Yet neither simulations, experiments, nor existing theories are able to provide a fully consistent description of the ...
Diehl, Alexandre +2 more
core +2 more sources
Application of Satellite‐Based Detections of Arctic Bromine Explosion Events Within GEOS‐Chem
Journal of Advances in Modeling Earth Systems, 2023 During polar spring, periods of elevated tropospheric bromine drive near complete removal of surface ozone. These events impact the tropospheric oxidative capacity and are an area of active research with multiple approaches for representing the ...
P. A. Wales +9 more
doaj +1 more source
Atmosphere, 2020 In this paper, we compare model calculations of ozone profiles and their variability for the period 1998 to 2016 with satellite and lidar profiles at five ground-based stations.
Kostas Eleftheratos +15 more
doaj +1 more source
Stable bromine isotopic composition of atmospheric CH3Br
Tellus: 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
Quantification of the depletion of ozone in the plume of Mount Etna [PDF]
, 2014 Volcanoes are an important source of inorganic halogen species into the atmosphere. Chemical processing of these species generates oxidised, highly reactive, halogen species which catalyse considerable O3 destruction within volcanic plumes. A campaign of
Aiuppa, A +4 more
core +3 more sources
Adsorption of diatomic halogen molecules on graphene: A van der Waals density functional study [PDF]
, 2010 The adsorption of fluorine, chlorine, bromine, and iodine diatomic molecules on graphene has been investigated using density functional theory with taking into account nonlocal correlation effects by means of vdW-DF approach. It is shown that the van der
Katsnelson, M. I. +3 more
core +2 more sources