Results 51 to 60 of about 449,459 (150)

Anion Transport with Halogen Bonds

open access: yes, 2014
This review covers the application of halogen bonds to transport anions across lipid bilayer membranes. The introduction provides a brief description of biological and synthetic transport systems.
Andreas Vargas Jentzsch   +3 more
core   +1 more source

The Role of Halogen Bonding in Controlling Assembly and Organization of Cu(II)-Acac Based Coordination Complexes

open access: yesCrystals, 2017
In order to explore the use of non-covalent interactions in the deliberate assembly of metal-supramolecular architectures, a series of β-diketone based ligands capable of simultaneously acting as halogen-bond donors and chelating ligands were synthesized.
Janaka C. Gamekkanda   +4 more
doaj   +1 more source

Single-Crystal NMR Characterization of Halogen Bonds

open access: yes, 2019
Oxygen-17-enriched triphenylphosphine oxide and three of its halogen-bonded cocrystals featuring 1,4-diiodotetrafluorobenzene and 1,3,5-trifluoro-2,4,6-triiodobenzene as halogen bond donors have been characterized by 31P and 17O single-crystal NMR ...
Bulat Gabidullin (4455532)   +2 more
core   +2 more sources

Isostructural Halogen Exchange and Halogen Bonds: The Case of N(4-Halogenobenzyl)-3-halogenopyridinium Halogenides

open access: yes, 2022
Six N-(4-halogenobenzyl)-3-halogenopyridinium cations were prepared by reacting meta-halogenopyridines (Cl, Br, and I) with (4-halogenobenzyl) bromides (Br and I) and were isolated as bromide salts, which were further used to obtain iodides and chlorides.
Luka Fotović   +5 more
core   +1 more source

Crystal structure of 7-iodo-4-oxo-4H-chromene-3-carbaldehyde

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2016
In the title compound, C10H5IO3, an iodinated 3-formylchromone derivative, the non-H atoms are essentially coplanar (r.m.s. deviation = 0.0344 Å), with the largest deviation from the least-squares plane [0.101 (3) Å] being found for the formyl O atom. In
Yoshinobu Ishikawa
doaj   +1 more source

Open Frameworks Formed from Iodoalkyne∙∙∙Halide Halogen Bonds [PDF]

open access: yes
Despite the apparently attractive characteristics of halogen bonds for preparing open/porous framework structures, very few such materials containing substantial void space have been reported.
Jordan, Smith, Nicholas, White
core   +2 more sources

Mechanochemical Preparations of Anion Coordinated Architectures Based on 3‐Iodoethynylpyridine and 3‐Iodoethynylbenzoic Acid

open access: yesChemistryOpen, 2019
The halogen bond has previously been explored as a versatile tool in crystal engineering and anion coordination chemistry, with mechanochemical synthetic techniques having been shown to provide convenient routes towards cocrystals. In an effort to expand
Vincent M. Morin   +4 more
doaj   +1 more source

Using beryllium bonds to change halogen bonds from traditional to chlorine-shared to ion-pair bonds [PDF]

open access: yes, 2015
Ab initio MP2/aug′-cc-pVTZ calculations have been carried out to investigate the structures, binding energies, and bonding characteristics of binary complexes HFBe:FCl, R2Be:FCl, and FCl:N-base, and of ternary complexes HFBe:FCl:N-base and R2Be:FCl:N ...
Elguero, José   +3 more
core   +1 more source

Crystal structure and Hirshfeld surface analysis of 2,5-dibromoterephthalic acid ethylene glycol monosolvate

open access: yesActa Crystallographica Section E: Crystallographic Communications, 2019
The title compound, C8H4Br2O4·C2H6O2, crystallizes with one-half of a 2,5-dibromoterephthalic acid (H2Br2tp) molecule and one-half of an ethylene glycol (EG) molecule in the the asymmetric unit.
Kenika Khotchasanthong   +4 more
doaj   +1 more source

Aggregation‐enabled alkene insertion into carbon–halogen bonds

open access: yesAggregate, 2023
Molecular aggregation affects the electronic interactions between molecules and has emerged as a powerful tool in material science. Aggregate effect finds wide applications in the research of new physical phenomena; however, its value for chemical ...
Meng‐Yao Li   +11 more
doaj   +1 more source

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