Crystal structures of 2-amino-pyridine citric acid salts: C₅H₇N₂⁺·C₆H₇O₇^- and 3C₅H₇N₂⁺·C₆H₅O₇³.

ABSTRACT: 2-Amino-pyridine and citric acid mixed in 1:1 and 3:1 ratios in ethanol yielded crystals of two 2-amino-pyridinium citrate salts, viz. C₅H₇N₂⁺·C₆H₇O₇^- (I) (systematic name: 2-amino-pyridin-1-ium 3-carb-oxy-2-carb-oxy-methyl-2-hy-droxy-propano-ate), and 3C₅H₇N₂⁺·C₆H₅O₇^3- (II) [systematic name: tris-(2-amino-pyridin-1-ium) 2-hy-droxy-propane-1,2,3-tri-carboxyl-ate]. The supra-molecular synthons present are analysed and their effect upon the crystal packing is presented in the context of crystal engineering. Salt I is formed by the protonation of the pyridine N atom and deprotonation of the c

SUBMITTER: Prakash SM 

PROVIDER: S-EPMC6073010 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature