Results 31 to 40 of about 85,379 (320)

The Effect of Intermolecular Halogen Bond on 19F DNP Enhancement in 1, 4-Diiodotetrafluorobenzene/4-OH-TEMPO Supramolecular Assembly

open access: yesChinese Journal of Magnetic Resonance, 2017
Halogen bond, as hydrogen bond, is a non-covalent bond. Dynamic nuclear polarization (DNP) technique has been used previously to study hydrogen bonds-mediated intermolecular interactions. However, no study has been carried out so far to study the halogen
GAO Shan   +8 more
doaj   +1 more source

Competition between hydrogen and halogen bonding in halogenated 1-methyluracil: water systems [PDF]

open access: yes, 2016
The competition between hydrogen- and halogen-bonding interactions in complexes of 5-halogenated 1-methyluracil (XmU; X = F, Cl, Br, I or At) with one or two water molecules in the binding region between C5-X and C4=O4 is investigated with M06-2X/6-31+G ...
Hogan, Simon William Leslie   +1 more
core   +1 more source

Halogen bonding and chalcogen bonding mediated sensing

open access: yesChemical Science, 2022
Sigma–hole mediated detection of anions is rapidly emerging as a new paradigm in supramolecular sensor chemistry. Herein, we provide an overview of this field including halogen bonding and chalcogen bonding optical, electrochemical and other sensors.
Robert Hein, Paul D. Beer
openaire   +2 more sources

Hybrid Molecular Dynamics for Elucidating Cooperativity Between Halogen Bond and Water Molecules During the Interaction of p53-Y220C and the PhiKan5196 Complex

open access: yesFrontiers in Chemistry, 2020
The cooperativity between hydrogen and halogen bonds plays an important role in rational drug design. However, mimicking the dynamic cooperation between these bonds is a challenging issue, which has impeded the development of the halogen bond force field.
Tian-ge Dong   +4 more
doaj   +1 more source

Complementary, Cooperative Ditopic Halogen Bonding and Electron Donor-Acceptor π-π Complexation in the Formation of Cocrystals

open access: yesMolecules, 2022
This study expands and combines concepts from two of our earlier studies. One study reported the complementary halogen bonding and π-π charge transfer complexation observed between isomeric electron rich 4-N,N-dimethylaminophenylethynylpyridines and the ...
Erin D. Speetzen   +3 more
doaj   +1 more source

Halogen bonds involved in binding of halogenated ligands by protein kinases. [PDF]

open access: yes, 2016
Analysis of 664 known structures of protein kinase complexes with halogenated ligands revealed 424 short contacts between a halogen atom and a potential protein X-bond acceptor, the topology and geometry of which were analyzed according to the type of a ...
Czapinska, Honorata   +4 more
core   +1 more source

Supramolecular self-assembled network formation containing N···Br halogen bonds in physisorbed overlayers. [PDF]

open access: yes, 2014
The formation of a halogen bonded self-assembled co-crystal physisorbed monolayer containing N···Br interactions is reported for the first time. The co-crystal monolayer is identified experimentally by synchrotron X-ray diffraction and the structure ...
Brewer, Adam Y   +5 more
core   +2 more sources

Transmembrane Halogen-Bonding Cascades

open access: yesJournal of the American Chemical Society, 2013
Halogen bonds have recently been introduced as ideal to transport anions across lipid bilayer membranes. However, activities obtained with small transporters were not impressive, and cyclic arrays of strong halogen-bond donors above a calix[4]arene scaffold gave even weaker activities. Here, we report that their linear alignment for anion hopping along
Vargas Jentzsch Andreas, Matile Stefan
openaire   +4 more sources

Cooperativity of halogen bonds – enhancing halogen-bond donating ability of halogenated pyridines through halogen bonding with N-haloimides [PDF]

open access: yesActa Crystallographica Section A Foundations and Advances, 2018
N-halogenated imides, common halogenating agents in organic synthesis, have recently been marked as extremely strong halogen donors. In previous studies we have demonstrated that N-halogenated succinimides form extremely short XBs with halogen bond energies between 20 and 60 kJ mol–1, depending on the pyridine basicity and the halogen atom. In light of
Stilinović, Vladimir, Cinčić, Dominik
openaire   +2 more sources

Halogen Bonds in Clathrate Cages: A Real Space Perspective [PDF]

open access: yes, 2018
We thank the Spanish MINECO, grant CTQ2015-65790-P, and theFICYT ...
Costales Castro, María Aurora   +4 more
core   +2 more sources

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