L-Phenylalanine L-Phenylalaninium Perchlorate

The crystal of the title compound, C₉H₁₁NO₂.C₉H₁₂NO₂⁺.ClO₄^-, is made up of a twofold symmetric hydrogen-bonded dimer carrying a net positive charge and a negatively charged perchlorate ion. The crystal structure involving alternating polar and non-polar zones is stabilized by hydrogen bonds and van der Waals interactions.

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