martedì 16 maggio 2017

# s-chem: hydrogen bonding, the strength in the middle ...

<< Hydrogen bonds are much weaker than chemical bonds, but stronger than intermolecular van der Waals interactions >>

<< With this study, [AA] have opened up new ways to identify three-dimensional molecules such as nucleic acids or polymers via observation of hydrogen atoms >>

Hydrogen bonds directly detected for the first time. May 12, 2017

Shigeki Kawai, Tomohiko Nishiuchi, et al. Direct quantitative measurement of the C═O⋅⋅⋅H–C bond by atomic force microscopy. Science Advances. 12 May 2017:Vol. 3, no. 5, e1603258 DOI: 10.1126/sciadv.1603258

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