Results 191 to 200 of about 10,693 (226)

Chalcogen Bond: A Sister Noncovalent Bond to Halogen Bond

The Journal of Physical Chemistry A, 2009
A sister noncovalent bond to halogen bond, termed chalcogen bond, is defined in this article. By selecting the complexes H(2)CS...Cl(-), F(2)CS...Cl(-), OCS...Cl(-), and SCS...Cl(-) as models, the bond-length change, interaction energy, topological property of the electron charge density and its Laplacian, and the charge transfer of the chalcogen bond ...
Weizhou, Wang, Baoming, Ji, Yu, Zhang
openaire   +4 more sources

Chalcogen⋅⋅⋅π Bonding Catalysis

Angewandte Chemie, 2021
AbstractWhile the presence of sulfur⋅⋅⋅π bonding interaction is a general phenomenon in the biological systems, the exploitation of this noncovalent force in a chemical process yet remains elusive. Herein, we describe the concept of chalcogen⋅⋅⋅π bonding catalysis that activates molecules of π systems through the interaction between chalcogen and π ...
Xiangjin Kong, Pan‐Pan Zhou, Yao Wang
openaire   +2 more sources

Dual Chalcogen–Chalcogen Bonding Catalysis

Journal of the American Chemical Society, 2020
The noncovalent S···O bonding interaction is an evolutionary force that has been smartly exploited by nature to modulate the conformational preferences of proteins. The employment of this type of weak noncovalent force to drive chemical reactions is promising yet remains largely elusive.
Wei Wang   +6 more
openaire   +2 more sources

Chalcogen-Bonding Supramolecular Polymers

The Journal of Organic Chemistry, 2020
Exploring unknown supramolecular interacting forces to create novel supramolecular materials is an eternal theme of supramolecular science. Here, we first report a new family of supramolecular polymers formed by unconventional chalcogen-bonding interactions. A class of chalcogen-containing macrocyclic receptors, termed as chalcogena[4]arene (ChA[4], Ch
Rongjin Zeng, Zehao Gong, Qiang Yan
openaire   +2 more sources

A Porous Chalcogen-Bonded Organic Framework

Journal of the American Chemical Society, 2021
The manner of bonding between constituent atoms or molecules invariably influences the properties of materials. Perhaps no material family is more emblematic of this than porous frameworks, wherein the namesake modes of connectivity give rise to discrete subclasses with unique collections of properties.
Brian J. Eckstein   +5 more
openaire   +2 more sources

Chalcogen Bonding: An Overview

Angewandte Chemie International Edition, 2018
AbstractIn the last few decades, “unusual” noncovalent interactions like anion‐π and halogen bonding have emerged as interesting alternatives to the ubiquitous hydrogen bonding in many research areas. This is also true, to a somewhat lesser extent, for chalcogen bonding, the noncovalent interaction involving Lewis acidic chalcogen centers.
Lukas Vogel   +2 more
openaire   +2 more sources

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