Careful chlorination of cyclo-hexasulfur yields S4Cl2, which is used to prepare S6 (CN) 2 by reaction with Hg (SCN) 2. Dicyanohexasulfane forms nonhelical chains with the terminal SCN groups in parallel orientation. S6 (CN) 2 reacts with titanocene pentasulfide in a new type of sulfur-transfer reaction to give S9, which has now been obtained as single crystals. The monoclinic α-S9 has two independent molecules of C 1 symmetry in the asymmetric ...
