The structure and Hirshfeld surface analysis of the salt 3-methacrylamido-N,N,N-trimethylpropan-1-aminium 2-acrylamido-2-methylpropane-1-sulfonate

• Main Authors: Ravindra N. Wickramasinhage, C. John McAdam, Lyall R. Hanton, Stephen C. Moratti, Jim Simpson
• Format: Article
• Language: English
• Published: International Union of Crystallography 2019-10-01
• Series: Acta Crystallographica Section E: Crystallographic Communications
• Subjects: crystal structure; 3-methacrylamido-N,N,N-trimethylpropan-1-aminium; 2-acrylamido-2-methylpropane-1-sulfonate; hydrogen bonding; Hirshfeld surface analysis
• Online Access: http://scripts.iucr.org/cgi-bin/paper?S2056989019012003

The title salt, C10H21N2O+·C7H12NO4S−, comprises a 3-methacrylamido-N,N,N-trimethylpropan-1-aminium cation and a 2-acrylamido-2-methylpropane-1-sulfonate anion. The salt crystallizes with two unique cation–anion pairs in the asymmetric unit of the orthorhombic unit cell. The crystal studied was an inversion twin with a 0.52 (4):0.48 (4) domain ratio. In the crystal, the cations and anions stack along the b-axis direction and are linked by an extensive series of N—H...O and C—H...O hydrogen bonds, forming a three-dimensional network. Hirshfeld surface analysis was carried out on both the asymmetric unit and the two individual salts. The contribution of interatomic contacts to the surfaces of the individual cations and anions are also compared.