What is a hydrogen bond? Resonance covalency in the supramolecular domain

  title={What is a hydrogen bond? Resonance covalency in the supramolecular domain},
  author={F. Weinhold and R. Klein},
  journal={Chemistry Education Research and Practice},
We address the broader conceptual and pedagogical implications of recent recommendations of the International Union of Pure and Applied Chemistry (IUPAC) concerning the re-definition of hydrogen bonding, drawing upon the recommended IUPAC statistical methodology of mutually correlated experimental and theoretical descriptors to operationally address the title question. Both direct and statistical lines of evidence point to the essential resonance covalency of H-bonding interactions, rather than… Expand
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