Crystal structure of tetra­iso­butyl­thiuram di­sulfide

Tetra­kis(2-methyl­prop­yl)thio­per­oxy­dicarbonic di­amide, or tetra­iso­butyl­thiuram di­sulfide, C(18)H(36)N(2)S(4), crystallizes in a general position in the triclinic space group P-1 but shows pseudo-C (2) symmetry about the di­sulfide bond. The C—S—S—C torsion angle [−85.81 (2)°] and the dihedral angle between the two NCS(2) mean planes [85.91 (5)°] are within the range observed for this compound type. Multiple intra- and inter­molecular S⋯H—C close contacts appear to play a role in assisting the specific conformation of the pendant isobutyl groups and the packing arrangement of mol­ecules within the cell. Tetra­iso­butyl­thiuram di­sulfide mol­ecules of one optical configuration form sheets in the plane of the a and b axes. Inversion centers exist between adjoining sheets, which stack along the c axis and alternate in the handedness of their constituent mol­ecules.