Intermolecular Interactions in the Solid State of Ionic Secondary Mannich Bases

…, M Barys, HT Flakus, A Sporzyński, A Koll

Index: Kolodziejczak, Jerzy; Adamczyk-Wozniak, Agnieszka; Hachula, Barbara; Barys, Maciej; Flakus, Henryk T.; Sporzynski, Andrzej; Koll, Aleksander Crystal Growth and Design, 2012 , vol. 12, # 2 p. 589 - 598

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Abstract

Two new secondary Mannich bases, 4-bromo-2-[(aminopropyl)methyl]-phenol (1) and 4-nitro-2-[(aminopropyl)methyl]-phenol (2), were synthesized. Crystal structures were determined at liquid nitrogen temperature. It was found that in both compounds the proton transfer forms exist in the solid state. In the case of 1, this was unexpected, because of the weak acidity of p-bromophenol being the parent component of this Mannich base. The reason for that ...