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How the Chalcogen Atom Size Dictates the Hydrogen‐Bond Donor Capability of Carboxamides, Thioamides, and Selenoamides
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2022
Year
EngineeringSteric Pauli RepulsionCarbon-chalcogen BondOrganic ChemistryAtom SizeChemistryChemical EngineeringBiophysicsMaterials ScienceInorganic ChemistryChemical BondPhysical ChemistryHydrogen‐bond Donor CapabilityQuantum ChemistryMolecular ChemistrySupramolecular ChemistryChalcogen Atom SizeNatural SciencesHydrogen Bond
Invited for the cover of this issue are Celine Nieuwland and Célia Fonseca Guerra of the Vrije Universiteit Amsterdam. The image depicts how the increasing atom size of the chalcogen from O to S to Se elongates the carbon-chalcogen bond in amides due to the increase in the steric Pauli repulsion and thereby enhances the amide hydrogen-bond donor strength. Read the full text of the article at 10.1002/chem.202200755.