Results 231 to 240 of about 17,342 (289)

Halogens in volcanic systems

open access: yesChemical Geology, 2009
The transport, degassing and atmospheric release of halogens from active volcanism on Earth have been the 12 focus of increasing interest over the last few decades, and have recently been the subject of the 1st workshop 13 on “Halogens in volcanic ...
A Aiuppa, Don R Baker, J D Webster
exaly   +3 more sources

Diffusion of halogens (F, Cl, Br, I) in silicic melt

open access: yesGeochimica Et Cosmochimica Acta, 2023
Chemical diffusion of the halogens F, Cl, Br, and I in silica-rich natural melts was experimentally investigated by the diffusion couple technique. Experiments were conducted under anhydrous conditions at atmospheric pressure and hydrous conditions (∼1.5
Yves Feisel   +2 more
exaly   +3 more sources

Encapsulation and Adsorption of Halogens into Single-Walled Carbon Nanotubes

open access: yesMicro, 2021
Functionalisation of single-walled carbon nanotubes (SWNTs) with atoms and molecules has the potential to prepare charge–transfer complexes for numerous applications. Here, we used density functional theory with dispersion correction (DFT + D) to examine
Navaratnarajah Kuganathan   +2 more
exaly   +2 more sources
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Halogen−Halogen Interactions in Halomethanes

The Journal of Organic Chemistry, 2002
We report the study of the electronic structure of CHFI(2), CHBrI(2), CHBr(2)I, CHClI(2), and CHCl(2)I using VUV photoelectron spectroscopy (UPS). The lone pair orbital interactions are discussed on the basis of experimental results and comparisons with other halomethanes.
Novak, I.   +4 more
openaire   +4 more sources

Origin of Halogens and Nitrogen in Enstatite Chondrites [PDF]

open access: yesEarth, Moon and Planets, 2009
The EH and EL enstatite chondrites are the most reduced chondrite groups, having formed in nebular regions where the gas may have had high C/O and/or pH2/pH2O ratios.
Alan E Rubin   +2 more
exaly   +2 more sources

Halogen–halogen interactions and halogen bonding in thiacalixarene systems

CrystEngComm, 2014
5,11,17,23-tetraiodo-25,26,27,28-tetrapropoxythiacalix[4]arene exhibited I⋯I interactions which are ca. 2% shorter than the sum of their respective van der Waals atomic radii. 5,11,17,23-tetraiodo-25,26,27,28-tetrabutoxythiacalix[4]arene were identified to have S⋯I interactions that are ca.
Manabu Yamada   +2 more
openaire   +1 more source

Halogen transfer through halogen bonds in halogen-bound ammonia homodimers

Physical Chemistry Chemical Physics, 2016
Halogen bond complexes as intermediates in halogen transfer reactions betweenN-haloamines and ammonia.
Juan, Crugeiras, Ana, Ríos
openaire   +2 more sources

Halogen bond-induced electrophilic aromatic halogenations

Organic & Biomolecular Chemistry, 2021
This review highlights the recent development of halogen bond-induced activations of N-halosuccinimides and N,N-dihalodimethylhydantoins in electrophilic aromatic halogenations.
Wanutcha Lorpaiboon, Pakorn Bovonsombat
openaire   +2 more sources

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