3,8-dithiabicyclo[8.3.1]tetradeca-1(14),10,12-trien-5-yne InChI=1/C12H12S2/c1-2-7-14-10-12-5-3-4-11(8-12)9-13-6-1/h3-5,8H,6-7,9-10H