O,O-bis(2-tert-butylphenyl) chlorothiophosphonate

Abstract

The title compound, C20H26ClO2PS, displays distorted tetrahedral geometry around the P atom, which lies on a crystallographic twofold axis. The S and Cl substituents on the P atom are disordered about the twofold axis. The internal angles in the aromatic rings vary significantly due to the steric influence of the tert-butyl groups. Weak intramolecular C-H center dot center dot center dot O hydrogen bonds generate two S( 6) motifs. The crystal structure is stabilized only by van der Waals interactions.