Abstract

The structure of the title compound, (C20H25N2O2)+.(C8H7O3)− at 122 (1) K has been compared to the closely related cinchonidinium mandelate salts [Gjerløv & Larsen (1997), Acta Cryst. B53, 708–718]. The hydrogen-bonding arrangement of infinite chains of alternating anions and cations is identical to the hydrogen-bonding pattern seen in the diastereomeric mandelate salts of cinchonidine. Likewise, the herring-bone stacking of the quinoline ring systems of the cations resembles the packing pattern observed in other salts of the cinchona alkaloids and in the free bases.

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