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Alternatives to free molecular halogens as chemoselective reactants: Catalysis of organic reactions with reusable complexes of halogen metal salts
(Int Union Pure Applied Chemistry, 2012-02-06)
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 ...
Analizando the effects of halogen on properties of a halogenated series of R and S enantiomers analogues alkaloid cocaine-X, X=F, Cl, Br, I.
(Paripex, 2017-12)
The volumes and weight molecular of all members of both series are relationed with the Van der Waals radius X distances with the electronegativities and R of X suggesting that these two properties have influence on the ...
Exploration of Br···O halogen bonding interactions in dinuclear vanadium(V) complexes with schiff base ligands
(Pergamon-Elsevier Science Ltd, 2020-09)
An oxo-bridged dinuclear vanadium(V) complex, (µ-O)2[V(O)(L)]2, [where HL = 2-((2-(methylamino)ethylimino)methyl)-4-bromo-6-methoxyphenol] has been synthesized and characterized by elemental and spectral analysis. Structure ...
Natural halogens buffer tropospheric ozone in a changing climate
(Springer Nature, 2020-01)
Reactive atmospheric halogens destroy tropospheric ozone (O3), an air pollutant and greenhouse gas. The primary source of natural halogens is emissions from marine phytoplankton and algae, as well as abiotic sources from ...
Comparison of halogen bonding and van der Waals and π-π Inter-actions in 4,5-dibromo-2-hexyl-oxyphenol
(Wiley Blackwell Publishing, Inc, 2009-04)
The title compound, C12H16BrO2, is an inter-esting case of a simple organic mol-ecule making use of five different types of intra- and inter-molecular inter-actions (viz. conventional and nonconventional hydrogen bonds, ...
Halogen Bonds Stabilised by an Electronic Exchange Channel
(Wiley Blackwell Publishing, Inc, 2021-01)
The σ-hole is an important concept which has been widely used lately to describe the halogen bond (XB) essentially as electrostatic in nature. However, this idea is not free of controversy. For the sake of this work, ...
Effect of halogen dopants on the properties of Li2O2: Is chloride special?
(Royal Society of Chemistry, 2019-06)
There is consensus on the fact that one of the main limitations of Li air batteries (LABs) is the insulating character of Li2O2 and that it becomes crucial to explore new conduction paths. Recent studies indicate that ...
Halogen bonding: the role of the polarizability of the electron-pair donor
(Royal Society of Chemistry, 2016-02)
The nature of F-Br⋯X-R interactions (with X = F, Cl, Br, I and R = -H, -F) has been investigated through theoretical calculation of molecular potential electrostatic (MEP), molecular polarizability, atoms in molecules (AIM) ...
Halogen bonding in 1,2-dibromo-4,5-dimethoxybenzene and 1,2-diiodo-4,5-dimethoxybenzene
(International Union of Crystallography, 2008-10)
An interesting case of ‘halogen-bonding-promoted’ crystal structure architecture is presented. The two title compounds, C8H8Br2O2 and C8H8I2O2, have almost indistinguishable molecular structures but very different spatial ...
Structure–activity relationship of dopaminergic halogenated 1-benzyl-tetrahydroisoquinoline derivatives
(Elsevier France-editions Scientifiques Medicales Elsevier, 2009-11)
Two series of halogenated 1-benzyl-7-chloro-6-hydroxy-tetrahydroisoquinolines were prepared to explore the influence of each series on the affinity for dopamine receptors. All the compounds displayed a high affinity for ...