title: Effect of pressure on crystalline L- and DL-serine: revisited by a combined single-crystal X-ray diffraction at a laboratory source and polarized Raman spectroscopy study.
abstract: Information on the effect of pressure on hydrogen bonds, which could be derived from single-crystal X-ray diffraction at a laboratory source and polarized Raman spectroscopy, has been compared. L-Serine and DL-serine were selected for this case study. The role of hydrogen bonds in pressure-induced phase transitions in the first system and in the structural stability of the second one are discussed. Non-monotonic distortion of selected hydrogen bonds in the pressure range below ~1-2 GPa, a change in the compression mechanism at ~2-3 GPa, and the evidence of formation of bifurcated N-H...O hydrogen bonds in DL-serine at ~3-4 GPa are considered.
authors.affiliation: Institute of Solid State Chemistry and Mechanochemistry SB RAS, Novosibirsk, Russian Federation. b.zakharov@yahoo.com
authors.forename: Boris A
authors.initials: BA
authors.lastname: Zakharov
authors.forename: Boris A
authors.initials: BA
authors.lastname: Kolesov
authors.forename: Elena V
authors.initials: EV
authors.lastname: Boldyreva
mesh_terms: D003460:Crystallization; D006860:Hydrogen Bonding; D008958:Models, Molecular; D011312:Pressure; D012694:Serine / Q000737:chemistry*; D013059:Spectrum Analysis, Raman / Q000379:methods
chemical_list: D012694:Serine