Results 41 to 50 of about 744,099 (279)
Crystallographic evidence for Bi(I) as the heaviest halogen bond acceptor [PDF]
, 2023 Complexation of a bismuthinidene (RBi) with two equivalents of a highly fluorinated aryl iodide at low temperature al-lows the crystallographic identification of an unstable species that can be regarded as an intermediate of an oxidative addition ...
Antonio, Frontera +5 more
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Computational Study on the Route of Cooperative Organocatalysis Utilizing Thiourea and Halogen Bond Donor Mixture [PDF]
, 2023 A computational analysis of possible routes of cooperative catalysis involving hydrogen bond donating thiourea and halogen bond donating organocatalysts has been carried out at the M06-2X/SDD level of theory using the solvation model based on density ...
Alexander S., Novikov +1 more
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Halogen Bonding: An Odd Chemistry? [PDF]
The Chemical Record, 2021 AbstractHalogen bonding is a flourishing field of research, but has for long been little recognized. The same goes for its scientific hero, Odd Hassel, who laid the foundations for all current developments. The crystallographic observation of halogen−oxygen interatomic distances shorter than the sum of the van der Waals radii of the involved atoms, and
Turunen, Lotta +2 more
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Direct through anionic, cationic, and radical active species: Terminal carbon-halogen bond for "controlled"/living polymerizations of styrene [PDF]
, 2019 In this work, we examined the synthesis of novel block (co)polymers by mechanistic transformation through anionic, cationic, and radical living polymerizations using terminal carbon–halogen bond as the dormant species.
佐藤, 浩太郎 +9 more
core +1 more source
Turkish Journal of Orthodontics, 2005 The aim of our study was to compare shear bond strengths of orthodontic brackets bonded with chemically cured, halogen light cured and LED cured adhesive systems. 45 extracted human premolar teeth were randomly divided into 3 groups.
Hakan Türkkahraman +1 more
doaj +1 more source
Three-center-four-electron halogen bond enables non-metallic complex catalysis for Mukaiyama–Mannich-type reaction [PDF]
, 2022 The three-center-four-electron halogen bond (3c4e X-bond) presents a fundamental design concept for catalysis. By integrating halogen(I) (X+: I+ or Br+), bis-pyridyl ligand NN, and non- nucleophilic counter anion Y, we developed non-metallic complex ...
Takeshi, FUJINAMI +6 more
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Acta Crystallographica Section E: Crystallographic Communications, 2015 The crystallization of a 1:1 molar solution of 1,2-diiodo-3,4,5,6-tetrafluorobenzene (o-DITFB) and tetrabutylammonium bromide (n-Bu4NBr) from dichloromethane yielded pure white crystals of a halogen-bonded compound, C16H36N+·Br−·C6F4I2·0.5CH2Cl2 or [(n ...
Jasmine Viger-Gravel +2 more
doaj +1 more source
Molecules, 2020 An extensive series of 128 halogen-bonded complexes formed by trimethylphosphine oxide and various F-, Cl-, Br-, I- and At-containing molecules, ranging in energy from 0 to 124 kJ/mol, is studied by DFT calculations in vacuum.
Alexei S. Ostras’ +3 more
doaj +1 more source
, 2020 The spectroscopic and photophysical properties of organic materials in the films are widely influenced by their molecular packing morphologies and intermolecular interactions. Here, regioisomeric phenanthridine derivatives were synthesized.
Peng Pang (6312092) +5 more
core +1 more source
Transmembrane Halogen-Bonding Cascades
Journal 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