Date Published: May 01, 2011
Publisher: International Union of Crystallography
Author(s): Afsheen Arshad, Hasnah Osman, Chan Kit Lam, Madhukar Hemamalini, Hoong-Kun Fun.
In the title compound, C25H16BrN3O2S·CHCl3, the thiazole ring is approximately planar [maximum deviation = 0.002 (3) Å] and makes dihedral angles of 10.75 (14) and 87.75 (15)/2.80 (14)° with the pyran ring system and the two terminal phenyl rings, respectively. The solvent molecule is disordered over two sets of sites, with refined occupancies of 0.639 (7) and 0.361 (7). In the crystal, molecules are connected via pairs of weak C—H⋯O interactions, forming centrosymmetric dimers. An intramolecular C—H⋯O hydrogen bond generates an S(6) ring motif.
For details and applications of coumarin derivatives, see: Siddiqui et al. (2009 ▶); Kamal et al. (2009 ▶); Kalkhambkar et al. (2007 ▶); Gursoy & Karali (2003 ▶). For the synthesis of benzophenone thiosemicarbazone and 6-bromo-3-(2-bromoacetyl)-2H-chromen-2-one, see: Yaragatti et al. (2010 ▶); Lobana et al. (2006 ▶). For graph-set notation, see: Bernstein et al. (1995 ▶).