DOI:10.1023/A:1022041532090

A general equation holds for the geometry of hydrogen bonds with O and N acceptors

A unique equation able to correlate two geometrical parameters in hydrogen bonded (HB) systems, the X-H covalent bond distance in the donor and the H...Y distance of the acceptor, has been devised. The mentioned equation is able to fit simultaneously calculated and high quality crystallographic data of different HB donors and several nitrogen and oxygen acceptors.