(1RS,6SR)-Ethyl 4-(2,4-dichlorophenyl)-6-(4-fluorophenyl)-2-oxocyclohex-3-ene-1-carboxylate

oleh: Grzegorz Dutkiewicz, B. Narayana, K. Veena, H. S. Yathirajan, Maciej Kubicki

Format: Article
Diterbitkan: International Union of Crystallography 2011-02-01

Deskripsi

There are two symmetry-independent molecules in the asymmetric unit of the title compound, C21H17Cl2FO3. Both these molecules are very similar: the normal probability plots for bond lengths, angles and even for torsion angles show that the differences are of a statistical nature. A pseudocentre of symmetry is located between the symmetry-independent molecules at [0.245 (1), 0.535 (19), 0.909 (1)]. The cyclohexene rings have slightly distorted sofa conformations in both molecules and the two benzene rings are inclined by dihedral angles of 61.33 (14) and 62.85 (14)°. In the crystal, relatively short intermolecular C—H...O interactions join molecules into homomolecular (i.e. ...AAA... and ...BBB...) chains along the b axis. These chains are interconnected by further heteromolecular C—H...O interactions.