(E)-1-(2,4-Dichlorophenyl)-3-(1,3-diphenyl-1H-pyrazol-4-yl)prop-2-en-1-one

Abstract

In the title molecule, C<inf>24</inf>H<inf>16</inf>Cl<inf>2</inf>N <inf>2</inf>O, the dihedral angles between the pyrazole ring and its N- and C-bonded phenyl rings are 7.06 (10) and 53.15 (10)°, respectively. The dihedral angle between the two pendant rings is 52.32 (10)°. The molecule exists in a trans conformation with respect to the acyclic C=C bond. In the crystal, inversion dimers occur in which each molecule is linked to the other by two C - H?O hydrogen bonds to the same acceptor O atom. There are also short Cl?Cl contacts [3.3492 (9) Å] and C - H?? interactions. © Fun et al. 2011.