Results 1 to 10 of about 1,194,003 (337)
Chemical Reviews, 2016 The halogen bond occurs when there is evidence of a net attractive interaction between an electrophilic region associated with a halogen atom in a molecular entity and a nucleophilic region in another, or the same, molecular entity.
Gabriella Cavallo +2 more
exaly +7 more sources
Activation of a Metal-Halogen Bond by Halogen Bonding. [PDF]
Angew Chem Int Ed Engl, 2020 In recent years, the non‐covalent interaction of halogen bonding (XB) has found increasing application in organocatalysis. However, reports of the activation of metal‐ligand bonds by XB have so far been limited to a few reactions with elemental iodine or
Wolf J +7 more
europepmc +7 more sources
Metal Centers as Nucleophiles: Oxymoron of Halogen Bond-Involving Crystal Engineering. [PDF]
Chemistry, 2022 This review highlights recent studies discovering unconventional halogen bonding (HaB) that involves positively charged metal centers. These centers provide their filled d‐orbitals for HaB, and thus behave as nucleophilic components toward the ...
Ivanov DM +3 more
europepmc +3 more sources
π covalency in the halogen bond [PDF]
Nature Communications, 2020 Current models of halogen bonding describe the σ-symmetric component of this interaction but do not contemplate the possibility of π-covalency. Here the authors provide experimental and computational evidence of π-covalency in halogen bonds involving ...
Cameron W. Kellett +2 more
doaj +3 more sources
Carbonyl Hypoiodites as Extremely Strong Halogen Bond Donors. [PDF]
Angew Chem Int Ed Engl, 2021 Neutral halogen‐bonded O−I−N complexes were prepared from in situ formed carbonyl hypoiodites and aromatic organic bases. The carbonyl hypoiodites have a strongly polarized iodine atom with larger σ‐holes than any known uncharged halogen bond donor ...
Yu S, Ward JS, Truong KN, Rissanen K.
europepmc +2 more sources
Nature of the Hydrogen Bond Enhanced Halogen Bond [PDF]
Molecules, 2021 The factors responsible for the enhancement of the halogen bond by an adjacent hydrogen bond have been quantitatively explored by means of state-of-the-art computational methods. It is found that the strength of a halogen bond is enhanced by ca.
Susana Portela, Israel Fernández
doaj +2 more sources
The Distance between Minima of Electron Density and Electrostatic Potential as a Measure of Halogen Bond Strength [PDF]
Molecules, 2022 In this study, we present results of a detailed topological analysis of electron density (ED) of 145 halogen-bonded complexes formed by various fluorine-, chlorine-, bromine-, and iodine-containing compounds with trimethylphosphine oxide, Me3PO.
Edem R. Chakalov +4 more
doaj +2 more sources
A comparison of structure, bonding and non-covalent interactions of aryl halide and diarylhalonium halogen-bond donors [PDF]
Beilstein Journal of Organic ChemistryHalogen bonding permeates many areas of chemistry. A wide range of halogen-bond donors including neutral, cationic, monovalent, and hypervalent have been developed and studied.
Nicole Javaly +2 more
doaj +2 more sources
A Theoretical Study of the Halogen Bond between Heteronuclear Halogen and Benzene [PDF]
Molecules, 2022 Halogen bonds play an important role in many fields, such as biological systems, drug design and crystal engineering. In this work, the structural characteristics of the halogen bond between heteronuclear halogen XD (ClF, BrCl, IBr, ICl, BrF and IF) and ...
Jun Luo +4 more
doaj +2 more sources
Dental Research Journal, 2012 Background: Reduced time and appropriate bond strength of brackets is one of the most important aspects of orthodontic treatments. Prolonged halogen light curing for bonding of brackets is undesirable, so the purpose of this study was to compare the ...
Mohammad Hossein IndianJPsychiatry +4 more
doaj +2 more sources