Results 41 to 50 of about 8,987 (212)

The Origin of Chalcogen-Bonding Interactions [PDF]

open access: yesJournal of the American Chemical Society, 2017
Favorable molecular interactions between group 16 elements have been implicated in catalysis, biological processes, and materials and medicinal chemistry. Such interactions have since become known as chalcogen bonds by analogy to hydrogen and halogen bonds. Although the prevalence and applications of chalcogen-bonding interactions continues to develop,
Dominic J. Pascoe   +2 more
openaire   +3 more sources

Chalcogen Bonds Involving Selenium in Protein Structures [PDF]

open access: yesACS Chemical Biology, 2021
Chalcogen bonds are the specific interactions involving group 16 elements as electrophilic sites. The role of chalcogen atoms as sticky sites in biomolecules is underappreciated, and the few available studies have mostly focused on S. Here, we carried out a statistical analysis over 3562 protein structures in the Protein Data Bank (PDB) containing 18 ...
Carugo O., Resnati G., Metrangolo P.
openaire   +4 more sources

Catalysis with Chalcogen Bonds

open access: yesAngewandte Chemie International Edition, 2016
AbstractHerein, we introduce catalysts that operate with chalcogen bonds. Compared to conventional hydrogen bonds, chalcogen bonds are similar in strength but more directional and hydrophobic, thus ideal for precision catalysis in apolar solvents. For the transfer hydrogenation of quinolines and imines, rate enhancements well beyond a factor of 1000 ...
Sebastian Benz   +4 more
openaire   +4 more sources

Nature and strength of chalcogen–π bonds [PDF]

open access: yesPhysical Chemistry Chemical Physics, 2018
We have analyzed the chalcogen–π bonding mechanism in a systematic series of model systems through Kohn–Sham molecular orbital theory and a quantitative energy decomposition scheme.
Marco Bortoli   +4 more
openaire   +5 more sources

Patterns and driving forces of dimensionality-dependent charge density waves in 2H-type transition metal dichalcogenides

open access: yes, 2020
Two-dimensional (2D) materials have become a fertile playground for the exploration and manipulation of novel collective electronic states. Recent experiments have unveiled a variety of robust 2D orders in highly-crystalline materials ranging from ...
Bahramy, Mohammad Saeed   +10 more
core   +1 more source

Defect Tolerant Monolayer Transition Metal Dichalcogenides [PDF]

open access: yes, 2016
Localized electronic states formed inside the band gap of a semiconductor due to crystal defects can be detrimental to the material's optoelectronic properties.
Jacobsen, Karsten W.   +5 more
core   +3 more sources

The Nature of Strong Chalcogen Bonds Involving Chalcogen‐Containing Heterocycles

open access: yesAngewandte Chemie International Edition, 2020
AbstractChalcogen bonds are σ hole interactions and have been used in recent years as an alternative to hydrogen bonds. In general, the electrostatic potential at the chalcogen atom and orbital delocalization effects are made responsible for the orientation of the chalcogen bond. Here, we were able to show by means of SAPT calculations that neither the
Gebhard Haberhauer, Rolf Gleiter
openaire   +2 more sources

Anion Transport with Chalcogen Bonds

open access: yesJournal of the American Chemical Society, 2016
In this report, we introduce synthetic anion transporters that operate with chalcogen bonds. Electron-deficient dithieno[3,2-b;2',3'-d]thiophenes (DTTs) are identified as ideal to bind anions in the focal point of the σ holes on the cofacial endocyclic sulfur atoms.
Benz, Sebastian   +5 more
openaire   +3 more sources

Structural Features of Chalcogen Bonds and Weak Interactions Involving Chalcogens

open access: yes, 2023
The structural features of chalcogen bonding (ChB) interactions in linear fragments R–Ch⋯Nu (Ch = S, Se, Te; R = C, N, O, S, Se, Te; Nu = N, O, S, Se, Te, F, Cl, Br, I) involving Ch⋯Nu distances shorter than the sum of relevant van der Waals (vdW) radii are reviewed.
M. CARLA ARAGONI, Yury Turubaev
openaire   +2 more sources

Magnetism in Semiconducting Molybdenum Dichalcogenides [PDF]

open access: yes, 2017
Transition metal dichalcogenides (TMDs) are interesting for understanding fundamental physics of two-dimensional materials (2D) as well as for many emerging technologies, including spin electronics.
Amato, A.   +20 more
core   +3 more sources

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