K. Ravikumar, S. Mehdi
Nov 15, 1993
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Journal
Acta Crystallographica Section C-crystal Structure Communications
Abstract
The crystal structure of 4-hydroxy-4,N,N'-trimethyl-2-(3-nitrophenyl)-6-oxo-1,3-cyclohexanedicarboxamide has been determined. The cyclohexane ring exhibits a chair conformation. The phenyl ring is planar and is approximately perpendicular to the cyclohexanone ring. The 3-nitro substituent on the phenyl ring is twisted about 10 o out of the ring plane. The amide carbonyl groups are oriented in different directions with respect to the cyclohexanone ring. These orientations of the carboxamide groups facilitate the formation of an intramolecular O-H...O hydrogen bond. The molecules are packed such that chains are formed along the b axis. These chains are held together by N-H...O hydrogen bonds