C18H10S2, M=290.34, monoclinic, P21, a=20.556(5), b=15.843(3), c=3.963(1) Å, β=92.79(2)° at 18°C, Z=4, Dx=1.496 g cm-3, μ(Cu Kα)=3.53 mm-1. Full-matrix least-squares refinement resulted in a final conventional R value of 0.036 for 2030 observed reflections. The average C-S bond distance is 1.747(16) Å, the S-S bond length is 2.074(1) Å. The torsion angles at the disulfide group are close to zero, at 3.5 and 0.8°. The carbon frameworks are nearly planar, and closely approximate symmetry mmm. Bond distances are comparable with those in related molecules.
|Number of pages||9|
|Journal||Journal of Crystallographic and Spectroscopic Research|
|State||Published - Jun 1983|