Date Published: July 01, 2012
Publisher: International Union of Crystallography
Author(s): Tian-Xiang Lei.
In the title compound, C25H22ClN3O5S, the two N atoms in the pyrazole ring have a pyramidal environment, with the sums of the valence angles around them being 349.3 (2) and 357.5 (2)°. The phenyl ring is twisted by 50.97 (12)° from the pyrazole mean plane. In the crystal, pairs of weak C—H⋯O hydrogen bonds link the molecules into inversion dimers.
For general background to the use of Schiff base derivatives in the development of protein and enzyme mimics, see: Santos et al. (2001 ▶). For related structures, see: Zhang et al. (2006 ▶); Han et al. (2008 ▶); Guo et al. (2010 ▶). For reference bond-length data, see: Allen et al. (1987 ▶).