The title compd. was obtained by reaction of (tert-BuO)3SiSH with metallic Li. Crystals are monoclinic, space group P21/n, with a 13.088(3), b 27.188(5), c 17.525(4) .ANG., b 102.25(3) Deg; Z = 2, dc = 1.083; R = 0.036, Rw(F2) = 0.105 for 11,732 reflections. The mol. is located on a center of inversion. The asym. unit contains only half a mol. and one disordered toluene mol. [on SciFinder (R)]