Results 31 to 40 of about 744,099 (279)

Reliable Comparison of Pnicogen, Chalcogen, and Halogen Bonds in Complexes of 6-OXF2-Fulvene (X = As, Sb, Se, Te, Be, I) With Three Electron Donors

open access: yesFrontiers in Chemistry, 2020
The pnicogen, chalcogen, and halogen bonds between 6-OXF2-fulvene (X = As, Sb, Se, Te, Br, and I) and three nitrogen-containing bases (FCN, HCN, and NH3) are compared.
Na Liu   +2 more
doaj   +1 more source

Design and Synthesis of a Chiral Halogen-Bond Donor with a Sp3-Hybridized Carbon–Iodine Moiety in a Chiral Fluorobissulfonyl Scaffold

open access: yesMolecules, 2020
The first example of a chiral halogen-bond donor with a sp3-hybridized carbon–iodine moiety in a fluorobissulfonyl scaffold is described. The binaphthyl backbone was designed as a chiral source and the chiral halogen-bond donor (R)-1 was synthesized from
Hiroto Uno   +3 more
doaj   +1 more source

Intramolecular halogen–halogen bonds?

open access: yesPhysical 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

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

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

Effects of Linker Structures in Designing Perfluoroiodobenzene- Based Halogen-Bond Donor Catalysts with Two-Point Activation Modes [PDF]

open access: yes, 2023
Linker structures were systematically investigated for use in designing halogen-bond donor catalysts with two-point activation modes based on perfluoroiodobenzenes.
Takeshi, FUJINAMI   +8 more
core   +2 more sources

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.
Hein, R, Beer, PD
openaire   +2 more sources

Halogen-Bond-Promoted Double Radical Isocyanide Insertion under Visible-Light Irradiation: Synthesis of 2‑Fluoroalkylated Quinoxalines

open access: yes, 2016
A halogen-bond-promoted double radical isocyanide insertion with perfluoroalkyl iodides is reported. With perfluoroalkyl iodides as halogen-bond donors and organic bases as halogen-bond acceptors, fluoroalkyl radicals can be generated by a visible-light ...
Xiaoyang Sun (1796203)   +4 more
core   +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

Halogen-Bond-Induced Consecutive Csp3–H Aminations via Hydrogen Atom Transfer Relay Strategy

open access: yes, 2020
The utilization of a halogen bond in a number of chemical fields is well-known. Surprisingly, the incorporation of this useful noncovalent interaction in chemical reaction engineering is rare. We disclose here an uncommon use of halogen bonding to induce
Nur-E Alom   +13 more
core   +1 more source

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