Results 11 to 20 of about 10,693 (226)

Pseudo-Bifurcated Chalcogen Bond in Crystal Engineering

Crystals, 2018
The concept of pseudo-bifurcated chalcogen bond has been proposed for the first time in this paper. It was found that the anticooperative effects between two chalcogen bonds of the pseudo-bifurcated chalcogen bond are not very large as compared to those ...
Yu Zhang, Weizhou Wang
doaj   +3 more sources

Carbon–Halogen Bond Activation by Selenium‐Based Chalcogen Bonding [PDF]

Angewandte Chemie International Edition, 2017
AbstractChalcogen bonding is a little explored noncovalent interaction similar to halogen bonding. This manuscript describes the first application of selenium‐based chalcogen bond donors as Lewis acids in organic synthesis. To this end, the solvolysis of benzhydryl bromide served as a halide abstraction benchmark reaction.
Patrick Wonner, Lukas Vogel, Maximilian Düser, Luís Gomes, Florian Kniep, Bert Mallick, Daniel B. Werz, Stefan M. Huber   +7 more
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Chalcogen bonding in coordination chemistry

Coordination Chemistry Reviews, 2022
The chalcogen bond (ChB) is defined as a noncovalent interaction between the electron density deficient region (so-called as sigma or pi hole) of a covalently bonded chalcogen atom and a nucleophilic (Nu) site in the same (intramolecular) or another (intermolecular) molecular entity: R-Ch center dot center dot center dot Nu [Ch = O, S, Se or Te; R = C,
Kamran T. Mahmudov, Atash V. Gurbanov, Vusala A. Aliyeva, M. F??tima C. Guedes da Silva, Giuseppe Resnati, Armando J. L. Pombeiro   +5 more
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Chalcogen Bond Mediated Enhancement of Cooperative Ion-Pair Recognition. [PDF]

Angew Chem Int Ed Engl, 2020
Bunchuay T, Docker A, Eiamprasert U, Surawatanawong P, Brown A, Beer PD.   +5 more
europepmc   +2 more sources

The Carbonyl⋅⋅⋅Tellurazole Chalcogen Bond as a Molecular Recognition Unit: From Model Studies to Supramolecular Organic Frameworks. [PDF]

Angew Chem Int Ed Engl, 2020
Mehrparvar S, Wölper C, Gleiter R, Haberhauer G.   +3 more
europepmc   +2 more sources

Catalytic Carbon-Chlorine Bond Activation by Selenium-Based Chalcogen Bond Donors. [PDF]

Chemistry, 2017
Wonner P, Vogel L, Kniep F, Huber SM.
europepmc   +2 more sources

Frontiers in Halogen and Chalcogen-Bond Donor Organocatalysis. [PDF]

ChemCatChem, 2019
Bamberger J, Ostler F, Mancheño OG.
europepmc   +2 more sources

Halogen bonding and chalcogen bonding mediated sensing

Chemical 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.
Robert Hein, Paul D. Beer
openaire   +2 more sources

Ability of Lewis Acids with Shallow σ-Holes to Engage in Chalcogen Bonds in Different Environments

Molecules, 2021
Molecules of the type XYT = Ch (T = C, Si, Ge; Ch = S, Se; X,Y = H, CH3, Cl, Br, I) contain a σ-hole along the T = Ch bond extension. This hole can engage with the N lone pair of NCH and NCCH3 so as to form a chalcogen bond.
Rafał Wysokiński, Wiktor Zierkiewicz, Mariusz Michalczyk, Steve Scheiner   +3 more
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Tuning of the Electrostatic Potentials on the Surface of the Sulfur Atom in Organic Molecules: Theoretical Design and Experimental Assessment

Molecules, 2023
Noncovalent sulfur interactions are ubiquitous and play important roles in medicinal chemistry and organic optoelectronic materials. Quantum chemical calculations predicted that the electrostatic potentials on the surface of the sulfur atom in organic ...
Ziyu Wang, Weizhou Wang, Hai-Bei Li
doaj   +1 more source