Crystal structure of dimethyl 3,4,5,6-tetraphenylcyclohexa-3,5-diene-1,2-dicarboxylate

Abstract

In the title compound, C34H28O4, the cyclohexadiene ring has a screw-boat conformation with a torsion angle between the double bonds being on average ca 15° [15.2 (3) and −15.3 (3) in the two independent molecules]. All four phenyl rings in both molecules are arranged in a propeller-like conformation. The two molecules exhibit S,R- and R,S- chirality, respectively, and are connected via C—H...O intermolecular interactions. In turn, these weakly bound dimers form the molecular crystal.

Keywords

• crystal structure
• 1,3-cyclohexadiene
• conformation