Results 11 to 20 of about 8,584 (146)

Sources of Organic and Inorganic Halogens to the Polar and Temperate Marine Boundary Layer [PDF]

, 2011
Very short lived halogenated substances (VSLH) are of importance for the transport of reactive halogens to the troposphere and lower stratosphere, whereas molecular halogens are of specific importance to the Marine Boundary Layer (MBL).
Shaw, M
core   +5 more sources

Effects of halogens on European air-quality. [PDF]

, 2017
Halogens (Cl, Br) have a profound influence on stratospheric ozone (O3). They (Cl, Br and I) have recently also been shown to impact the troposphere, notably by reducing the mixing ratios of O3 and OH.
P. S. Monks (7603757), T. Sherwen (7706834), Stephen M. Ball (7695917), G. Forster (7647548), M. J. Evans (7602317), C. E. Reeves (7584374), L. J. Carpenter (2034355), J. D. Lee (1582129), B. Bandy (7584338), R. Sommariva (7579964), C. Reed (7706840), W. J. Bloss (7656248), L. D. J. Hollis (7706837)   +12 more
core   +5 more sources

Halogen–Halogen Nonbonded Interactions [PDF]

ACS Omega, 2021
Halogen-halogen nonbonded interactions were studied for methyl halides and phenyl halides using both B3LYP and MP2 along with 6-311+G* and aug-cc-pVTZ. With the methyl halides, the linear approach was found to lead to little stabilization, whereas the "90°" approach gave 1-2 kcal/mol. This modest stabilization was due to long-range electron correlation
openaire   +3 more sources

Halogens Enhance Haze Pollution in China [PDF]

, 2021
Unidad de excelencia María de Maeztu CEX2019-000940-MSevere and persistent haze events in northern China, characterized by high loading of fine aerosol especially of secondary origin, negatively impact human health and the welfare of ecosystems. However,
Saiz López, Alfonso, Chen, Jianmin, Mu, Yujing, Wang, Tao, Fernández, Rafael P., Cuevas Rodríguez, Carlos Alberto, Fu, Xiao, Peng, Xiang, Badia, Alba, Jimenez, Jose L., Cuevas, Carlos A., Saiz-Lopez, Alfonso, Li, Qinyi, Saiz-Lopez, A., Fernandez, Rafael Pedro, Wang, Weihao, Fu, X, Jimenez, JL, Fernandez, RP, Badia, A, Chen, J, Wang, T, Peng, X, Wang, W, Cuevas, CA, Saiz-Lopez, A, Mu, Y, Li, Q, Jianmin Chen, Yujing Mu, Qinyi Li, Xiang Peng, Jose L. Jimenez, Alfonso Saiz-Lopez, Xiao Fu, Rafael P. Fernandez, Tao Wang, Weihao Wang, Alba Badia, Carlos A. Cuevas   +39 more
core   +3 more sources

Type II halogen···halogen contacts are halogen bonds [PDF]

IUCrJ, 2013
Cl/Br/I alternative substitutions in a series of dihalophenols indicate that type I and type II halogen···halogen contacts have different chemical nature. Only the latter ones qualify as true halogen bonds, according to the recent IUPAC definition.
METRANGOLO, PIERANGELO, RESNATI, GIUSEPPE   +1 more
openaire   +4 more sources

Probing halogen–halogen interactions in solution [PDF]

Physical Chemistry Chemical Physics, 2017
Weak but measurable: a supramolecular balance detects interactions between CBr 3 groups in solution and estimates the corresponding free energy (0.2 kJ mol −1 ).
Ayzac, V., Raynal, Matthieu, Isare, B., Idé, J., Brocorens, P., Lazzaroni, R., Etienne, T., Monari, A., Assfeld, Xavier, Bouteiller, Laurent   +9 more
openaire   +3 more sources

Composition of minerals (apatite, magnenite, ilmenite and others) as an index of conditions of layered massive ore formation in the laminated gabbro of Kusa intrusion (the Southern Urals)

Литосфера, 2019
Research subject. In this research, we carried out a series of mineralogical, petrological and geochemical studies to investigate ore zones present in the Kusa ilmenite-magnetite deposit located within the boundaries of a similarly-named laminated gabbro
T. D. Bocharnikova, V. V. Kholodnov, Y. S. Shagalov   +2 more
doaj   +1 more source

Co-emission of volcanic sulfur and halogens amplifies volcanic effective radiative forcing [PDF]

Atmospheric Chemistry and Physics, 2021
The evolution of volcanic sulfur and the resulting radiative forcing following explosive volcanic eruptions is well understood. Petrological evidence suggests that significant amounts of halogens may be co-emitted alongside sulfur in some explosive ...
J. Staunton-Sykes, T. J. Aubry, T. J. Aubry, Y. M. Shin, J. Weber, L. R. Marshall, N. Luke Abraham, N. Luke Abraham, A. Archibald, A. Archibald, A. Schmidt, A. Schmidt   +11 more
doaj   +1 more source

Intramolecular halogen–halogen bonds?

Physical Chemistry Chemical Physics, 2013
By analysing the properties of the electron density in the structurally simple perhalogenated ethanes, X3C-CY3 (X, Y = F, Cl), a previously overlooked non-covalent attraction between halogens attached to opposite carbon atoms is found. Quantum chemical calculations extrapolated towards the full solution of the Schrödinger equation reveal the complex ...
Johansson, Mikael P., Swart, Marcel
openaire   +5 more sources

Halogens in the atmosphere [PDF]

, 1981
Extant data from measurements of halogens in the atmosphere are reviewed in the following categories: gaseous chlorine compounds (inorganic and organic), particulate chloride and chloride in precipitation, gaseous bromine compounds (inorganic and organic)
Cicerone, Ralph J, Ralph J. Cicerone
core   +1 more source