Duan Zhong-Yu, Ma Guo-Li, Yang Li-Ping
College of Chemical Engineering, Hebei University of Technology, Tianjin 300130, People's Republic of China.
Acta Crystallogr Sect E Struct Rep Online. 2012 Apr 1;68(Pt 4):o1039. doi: 10.1107/S1600536812010057. Epub 2012 Mar 10.
In the title compound, C(25)H(22)BrN(3)O(5)S, the central benzene ring makes dihedral angles of 4.41 (10), 67.09 (9) and 62.05 (10)°, respectively, with the pyrazolone, bromo-benzene and terminal phenyl rings. The dihedral angle between the pyrazolone and phenyl rings is 57.75 (11)°. In the crystal, two pairs of C-H⋯O hydrogen bonds link the mol-ecules into inversion dimers. A weak intra-molecular C-H⋯O hydrogen bonds is also observed.