Date Published: February 01, 2012
Publisher: International Union of Crystallography
Author(s): Hoong-Kun Fun, Suhana Arshad, B. Palakshi Reddy, V. Vijayakumar, S. Sarveswari.
In the title compound, C19H20F6N2O8, the ethoxy and ethyl groups are disordered over two sets of sites, with occupancy ratios of 0.212 (18):0.788 (18) and 0.746 (6):0.254 (6), respectively. The piperidine ring adopts a chair conformation. In the molecule, intramolecular O—H⋯O hydrogen bonds form two S(6) ring motifs. In the crystal, molecules are linked via O—H⋯O and C—H⋯O hydrogen bonds, forming dimers.
For studies on 1,4-dihydropyridine and piperidones reported by our group, see: Palakshi Reddy et al. (2011a ▶,b ▶,c ▶); Rathore et al. (2009 ▶); Rajesh et al. (2011 ▶). For bond-length data, see: Allen et al. (1987 ▶). For hydrogen-bond motifs, see: Bernstein et al. (1995 ▶). For ring conformations, see: Cremer & Pople (1975 ▶).