Title of article :
DL-Piperidinium-2-carboxylate bis(hydrogen peroxide): unusual hydrogen-bonded peroxide chains
Author/Authors :
Navasardyan, Mger A. Institute of General and Inorganic Chemistry - Russian Academy of Sciences, Russian Federation , Grishanov, Dmitry A. Institute of General and Inorganic Chemistry - Russian Academy of Sciences, Russian Federation , Prikhodchenko, Petr V. Institute of General and Inorganic Chemistry - Russian Academy of Sciences, Russian Federation , Churakov, Andrei V. Institute of General and Inorganic Chemistry - Russian Academy of Sciences, Russian Federation
Abstract :
The title compound, C6H11NO2·2H2O2, is the richest (by molar ratio) in hydrogen peroxide among the peroxosolvates of aliphatic α-amino acids. The asymmetric unit contains a zwitterionic pipecolinic acid molecule and two hydrogen peroxide molecules. The two crystallographically independent hydrogen peroxide molecules form a different number of hydrogen bonds: one forms two as donor and two as acceptor ([2,2] mode) and the other forms two as donor and one as acceptor ([2,1] mode). The latter hydrogen peroxide molecule forms infinite hydrogen-bonded hydroperoxo chains running along the c-axis direction, which is unusual for aliphatic α-amino acid peroxosolvates.
Keywords :
crystal structure , peroxosolvates , charge assisted hydrogen bonds , carboxylate anions , peroxide H-bonded chains , aliphatic amino acids
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
