Results 11 to 20 of about 4,166 (227)
Chalcogen‐Bonding Catalysis with Telluronium Cations [PDF]
Angewandte Chemie, 2021 AbstractChalcogen bonding results from non‐covalent interactions occurring between electrodeficient chalcogen atoms and Lewis bases. Among the chalcogens, tellurium is the strongest Lewis acid, but Te‐based compounds are scarcely used as organocatalysts.
Weiss, Robin +3 more
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Bifurcated Chalcogen Bonds Based on One σ-Hole
Organic Materials, 2022 Chalcogen bonds are noncovalent interactions and are increasingly coming into focus for the design of complex structures in research areas such as crystal engineering, molecular recognition and catalysis. Conceptionally, chalcogen bonds can be considered
Saber Mehrparvar +3 more
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Assessing the Possibility and Properties of Types I and II Chalcogen Bonds
Crystals, 2023 Type I and II halogen bonds are well-recognized motifs that commonly occur within crystals. Quantum calculations are applied to examine whether such geometries might occur in their closely related chalcogen bond cousins. Homodimers are constructed of the
Steve Scheiner
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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.
Hein, R, Beer, PD
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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 +3 more
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Chalcogen bonding in crystal engineering [PDF]
Acta Crystallographica Section A Foundations and Advances, 2019 n ...
Resnati, G, Scilabra, P, Terraneo, G
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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
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A Structural Approach to the Strength Evaluation of Linear Chalcogen Bonds
Molecules, 2023 The experimental structural features of chalcogen bonding (ChB) interactions in over 34,000 linear fragments R–Ch⋯A (Ch = S, Se, Te; R = C, N, O, S, Se, Te; A = N, O, S, Se, Te, F, Cl, Br, I) were analyzed.
Maria Carla Aragoni +5 more
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The Origin of Chalcogen-Bonding Interactions [PDF]
Journal 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
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Activating Chalcogen Bonding (ChB) in Alkylseleno/Alkyltelluroacetylenes toward Chalcogen Bonding Directionality Control [PDF]
Angewandte Chemie International Edition, 2020 AbstractActivation of a deep electron‐deficient area on chalcogen atoms (Ch=Se, Te) is demonstrated in alkynyl chalcogen derivatives, in the prolongation of the (C≡)C−Ch bond. The solid‐state structures of 1,4‐bis(methylselenoethynyl)perfluorobenzene (1Se) show the formation of recurrent chalcogen‐bonded (ChB) motifs.
Arun Dhaka +5 more
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