Oxidative Addition of Diphenyldichalcogenides PhEEPh (E = S, Se, Te) to Low-Valent CN- and NCN-Chelated Organoantimony and Organobismuth Compounds

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Abstract

The reactions of the organoantimony(I) compound (L4Sb4)-Sb-1 (1) (where L-1 = [o-C6H4(CH=NC6H3(i-Pr)(2)-2,6)]) with diphenyldichalcogenides PhEEPh (E = S, Se, or Te) gave compounds (LSb)-Sb-1(EPh)(2) (E = S (2), Se (3), Te (4)) as the result of the oxidative addition of the antimony(I) atom across the chalcogen-chalcogen bond. The reaction of diphenyldichalcogenides PhEEPh with an in situ prepared organobismuth(I) compound (via reaction of the parent chloride (LBiCl2)-Bi-1 (5) with two equivalents of K[B(s-Bu)(3)H]) gave surprisingly diorganobismuth compounds (L2Bi)-Bi-1(EPh) (E = S (6), Se (7), Te (8)) as the major products along with only a trace amount of the intended compounds (LBi)-Bi-1(EPh)(2) (E = S (9), Se (10), Te (11))

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