The Weak Hydrogen Bond

Abstract The weak hydrogen bond, also known as non-conventional hydrogen bond, has been the subject of intense scrutiny over recent years in several fields, in particular structural chemistry, structural biology, and the pharmaceutical sciences. Today, there is a large body of experimental and theoretical evidence confirming that hydrogen bonds like C-H···O, N-H···π, C-H···π and even bonds like O-H··· metal play distinctive roles in molecular recognition, guiding molecular association, and in determining molecular and supramolecular architectures. The relevant compound classes include organometallic complexes, organic and bio-organic systems, as well as DNA and proteins.

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