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Abstract
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.
Highlights
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 cell s.u.'s are taken into account individually in the estimation of s.u.'s in distances, angles and torsion angles; correlations between s.u.'s in cell parameters are only used when they are defined by crystal symmetry
Summary
Poland, bDepartment of Studies in Chemistry, Mangalore University, Mangalagangotri 574 199, India, and cDepartment of Studies in Chemistry, University of Mysore, Manasagangotri, Mysore 570 006, India. R factor = 0.039; wR factor = 0.104; data-to-parameter ratio = 10.2
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