Carbon-Halogen Bond Activation by Selenium-Based Chalcogen Bonding. [PDF]
Angew Chem Int Ed Engl, 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.
Wonner P +7 more
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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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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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Chalcogen–Chalcogen Bonding Catalysis Enables Assembly of Discrete Molecules [PDF]
Journal of the American Chemical Society, 2019 Despite the observation of noncovalent interactions between chalcogen atoms in X-ray crystal structures, catalysis that harnesses the power of such chalcogen-chalcogen bonding interactions to produce advanced molecules remains an unresolved problem. Here, we show that a class of extraordinary chalcogen-bonding catalysts enables assembly of discrete ...
Wei Wang +6 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 +5 more
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Selective recognition and extraction of iodide from pure water by a tripodal selenoimidazol(ium)-based chalcogen bonding receptor [PDF]
iScienceSummary: A selenium-based tripodal chalcogen bond (ChB) donor TPI-3Se is demonstrated for the recognition and extraction of I− from 100% water medium. NMR and ITC studies with the halides reveal that the ChB donor selectively binds with the large, weakly
Abu S.M. Islam +4 more
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Chalcogen Bonding due to the Exo-Substitution of Icosahedral Dicarbaborane [PDF]
Molecules, 2019 Chalcogen atoms are a class of substituents capable of generating inner and outer derivatives of boron clusters. It is well known that chalcogenated boron clusters can form strong σ-hole interactions when a chalcogen atom is a part of an icosahedron.
Jindřich Fanfrlík +2 more
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From Chalcogen Bonding to S–π Interactions in Hybrid Perovskite Photovoltaics [PDF]
Advanced ScienceThe stability of hybrid organic–inorganic halide perovskite semiconductors remains a significant obstacle to their application in photovoltaics. To this end, the use of low‐dimensional (LD) perovskites, which incorporate hydrophobic organic moieties ...
Weifan Luo +29 more
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Intramolecular chalcogen bonding activated SuFEx click chemistry for efficient organic-inorganic linking [PDF]
Nature CommunicationsSuFEx click chemistry demonstrates remarkable molecular assembly capabilities. However, the effective utilization of alkyl sulfonyl fluoride hubs in SuFEx chemistry, particularly in reactions with alcohols and primary amines, presents considerable ...
Minlong Wang +10 more
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On-Surface Molecular Recognition Driven by Chalcogen Bonding [PDF]
JACS AuLuca Camilli +7 more
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