Bis(2-hydroxyethyl)ammonium 2-bromophenolate

Abstract

In the crystal structure of the 1:1 title salt, C4H12NO2+·C6H4BrO−, hydrogen-bonding interactions originate from the ammonium cation, which adopts a syn conformation. A gauche relationship between the C—O and C—N bonds of the 2-hydroxyethyl fragments also facilitates O—H...O interactions of bis(2-hydroxyethyl)ammonium cation chains to phenolate O atoms. The resulting double-ion chains along [100] are further linked by N—H...O interactions, forming chains parallel to [110]

Three ammonium salts of sulfathiazole: crystallography and anti-microbial assay

“…As mentioned above, there are literature precedents for the cation in 3 and an analysis of these reveals significant conformational flexibility in their molecular structures. Indeed, there are 10 other cations in structures that have three-dimensional coordinates and that do not suffer from disorder [38][39][40][41][42][43][44][45]. Key torsion angle data for these are collected in Table 2.…”