Results 31 to 40 of about 4,166 (227)
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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IUCrJ, 2018 The question of whether intermolecular interactions in crystals originate from localized atom...atom interactions or as a result of holistic molecule...molecule close packing is a matter of continuing debate.
Khidhir Alhameedi +3 more
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Catalysis with Pnictogen, Chalcogen, and Halogen Bonds [PDF]
Angewandte Chemie, 2018 AbstractHalogen‐ and chalcogen‐based σ‐hole interactions have recently received increased interest in non‐covalent organocatalysis. However, the closely related pnictogen bonds have been neglected. In this study, we introduce conceptually simple, neutral, and monodentate pnictogen‐bonding catalysts. Solution and in silico binding studies, together with
Benz, Sebastian +3 more
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Nature Communications, 2022 While homodimeric prodrug assemblies can improve drug loading and limit toxicity in cancer therapy, bioactivation within the target site is limited. Here, the authors introduce a hybrid chalcogen bond linker to a docetaxel dimeric prodrug nanoassembly ...
Tian Liu +14 more
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Molecules, 2021 Over the last years, scientific interest in noncovalent interactions based on the presence of electron-depleted regions called σ-holes or π-holes has markedly accelerated.
Wiktor Zierkiewicz +2 more
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Structural Features of Chalcogen Bonds and Weak Interactions Involving Chalcogens
, 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
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Molecules, 2023 Organothiocyanates and selenocyanates are valuable compounds, both in terms of functional group interconversion and due to their biological activities. In this contribution, we report the synthesis of a series of these important substances in a mixture ...
Alix Y. Bastidas Ángel +2 more
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The Nature of Strong Chalcogen Bonds Involving Chalcogen‐Containing Heterocycles
Angewandte 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
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Molecules, 2017 A theoretical study of the peri interactions, both intramolecular hydrogen (HB) and chalcogen bonds (YB), in 1-hydroxy-8YH-naphthalene, 1,4-dihydroxy-5,8-di-YH-naphthalene, and 1,5-dihydroxy-4,8-di-YH-naphthalene, with Y = O, S, and Se was carried out ...
Goar Sánchez–Sanz +2 more
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QRB Discovery, 2023 Divalent sulfur (S) forms a chalcogen bond (Ch-bond) via its σ-holes and a hydrogen bond (H-bond) via its lone pairs. The relevance of these interactions and their interplay for protein structure and function is unclear.
Vishal Annasaheb Adhav +3 more
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