T. Steiner et al., SPECTROSCOPIC EVIDENCE FOR COOPERATIVITY EFFECTS INVOLVING C-H-CENTER-DOT-CENTER-DOT-CENTER-DOT-O HYDROGEN-BONDS - CRYSTALLINE MESTRANOL, Chemical communications, (2), 1997, pp. 191-192
Combined crystallographic and IR spectroscopic study of the hydrogen b
ond network in the synthetic sex steroid mestranol indicates that a C=
C-H ... O hydrogen bond can be considerably enhanced if the C=C-H dono
r simultaneously accepts an O-H ... C=C interaction.