title: [Raman scattering study of DL-alanine].
abstract: Studies of Raman vibration spectra are useful to obtaining information on biomolecular crystals. The cell dimensions of the L- and DL-alanine crystals are nearly identical, and both structures belong to the orthorhombic system, but the space group is P2(1) 2(1) 2(1) for the L-isomer, and Pna2(1) for the racemate crystal. The Raman spectrum of L-alanine has been measured by many authors. The present work is focusing on the Raman scattering study of DL-alanine powder. Based on the analysis of the differences between DL-alanine and L-alanine Raman spectra, the authors obtained indispensable information on hydrogen bond and the motion of the molecular conformation in alanine crystals.
authors.affiliation: Department of Applied Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
authors.forename: Yan
authors.initials: Y
authors.lastname: Gong
authors.forename: Wen-qing
authors.initials: WQ
authors.lastname: Wang
mesh_terms: D000409:Alanine / Q000737:chemistry*; D006860:Hydrogen Bonding; D008968:Molecular Conformation; D013059:Spectrum Analysis, Raman
chemical_list: D000409:Alanine