Research Article: Bis[4-(4-chloro­phen­yl)-4-hydroxy­piperidinium] dipicrate dimethyl sulfoxide solvate

Date Published: May 01, 2010

Publisher: International Union of Crystallography

Author(s): Hoong-Kun Fun, Madhukar Hemamalini, B. P. Siddaraju, H. S. Yathirajan, B. Narayana.


The asymmetric unit of the title salt solvate, 2C11H15ClNO+·2C6H2N3O7−·C2H6OS, contains two crystallographically independent 4-(4-chloro­phen­yl)-4-hydroxy­piperidinium cations, two picrate anions and a dimethyl sulfoxide solvent mol­ecule. In each cation, the piperidinium ring adopts a chair conformation. In the crystal structure, the cations, anions and solvent mol­ecules are connected by inter­molecular O—H⋯O, N—H⋯O and C—H⋯O hydrogen bonds, forming a three-dimensional network.

Partial Text

For background to the importance of piperidines, see: Vartanyan (1984 ▶). For related structures, see: Cygler et al. (1980 ▶); Cygler & Ahmed (1984 ▶); Dutkiewicz et al. (2010 ▶); Georges et al. (1989 ▶); Jasinski et al. (2009 ▶); Lisgarten & Palmer (1989 ▶); Tomlin et al. (1996 ▶). For picrate salts, see: Anitha et al. (2004 ▶); Thanigaimani et al. (2009 ▶). For ring conformations, see: Cremer & Pople (1975 ▶). For bond-length data, see: Allen et al. (1987 ▶). For the stability of the temperature controller used in the data collection, see: Cosier & Glazer (1986 ▶).




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