In the title salt, C37H51N2O10+·Br−, the 1,4-dihydropyridine (1,4-DHP) ring adopts a slighly puckered boat conformation.The N and opposite C atoms deviate from the least-squares plane calculated through the four other ring atoms Microphone by 0.068 (5) and 0.224 (5) Å, respectively.
The orientation of both C=O groups is similar (cis with respect to the double bonds of 1,4-DHP.The pyridinium ring has an axial orientation with respect to the1,4-DHP ring and is almost perpendicular to the least-squares plane of Golf the 1,4-DHP ring, making a dihedral angle of 89.2 (3)°.The molecule has a compact shape due to the parallel orientation of the long-chain substituents.
One of the butoxy groups was fond to be disordered (occupancy ratio 0.70:0.30).In the crystal, the bromide anion accepts a weak hydrogen bond from the N—H group of a neighboring 1,4-DHP ring.