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Ghazaryan, V.V.; Fleck, M.; Petrosyan, A.M.
Journal of molecular structure, 05/2012, Letnik: 1015Journal Article
► A new member of the family of salts of amino acids with dimeric cation is presented. ► The O⋯O distance in the dimeric cation is longest among salts with l-alanine l-alaninium cation. ► The presence of dimeric cation is reflected in the Infrared spectrum. Preparation, crystal and molecular structure as well as vibrational spectra of the crystal l-alanine l-alaninium picrate monohydrate are described. The title crystal is monoclinic, space group P21. The asymmetric unit contains one dimeric (l-Ala⋯l-Ala+) cation, one picrate anion and a water molecule. The O⋯O distance in the dimeric cation is equal to 2.553(2)Å. The IR and Raman spectra are interpreted based on the structure.
