title: [The Raman spectra of monohydrate citric acid].
abstract: The Raman Spectra of monohydratecitric acid in different geometric arrangements have been reported in this paper. From the shift of some spectra, the anisotropic Raman scattering and depoearization effects, we can conclude that there exist hydrogen bonds in the crystal. Because of the effect of hydrogen bonds, electrical coupling between molecules causes the C-C, C-O bonds to possess some double bond character. On the other hand, the C=O bond possesses some single bond character.
authors.affiliation: Environmental Engineering Department, Crystal Materials National Key Lab. Shandong University, 150100 Jinan.
authors.forename: L
authors.initials: L
authors.lastname: Li
authors.forename: J
authors.initials: J
authors.lastname: Wang
authors.forename: S
authors.initials: S
authors.lastname: Jiang
mesh_terms: D019343:Citric Acid / Q000737:chemistry*; D005503:Food Additives / Q000737:chemistry*; D006860:Hydrogen Bonding; D013059:Spectrum Analysis, Raman
chemical_list: D005503:Food Additives; D019343:Citric Acid