(Di-tert-butylphosphino)(dimethylphosphino)methane disulfide

Abstract

The title compound, C11H26P2S2, displays crystallographic mirror symmetry. Key bond lengths (Å) are P1—C(methyl­ene) 1.8464 (18), P1—C(butyl) 1.8711 (13), P2—C(methyl­ene) 1.8266 (18), P2—C(methyl) 1.7948 (15), P1=S 1.9631 (8) and P2=S 1.9552 (8), where P1 is the di-tert-butyl­phosphino P atom and P2 is the di­methyl­phosphino P atom. The angle P—C—P [124.31 (10)°] is wide and S=P—C(methyl­ene) [108.91 (6)°] narrow. Steric pressure from the tert-butyl groups may cause some of the molecular dimensions to depart from normal values.