Novel organometallic derivatives of thioesters of the trivalent phosphorusacids: Synthesis and structure

Thioesters of the phosphorous acid containing cymantrenyl and ferrocenyl su bstituents at sulfur were obtained for the first time from the reaction of organometallic disulfides with white phosphorus. According to an X-ray diff raction study tricymantrenyl trithiophosphite adopts an unusual asymmetric cis, gauche, trans conformation along the P-S bonds with respect to the pho sphorus lone electron pair. Tri-ferrocenyl trithiophosphate possesses a cla ssical propeller-like structure in the solid state which is different from its oxygen analogue.