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Sulfur transfer reactions of a zinc tetrasulfanido complex

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A zinc tetrasulfanido complex supported by a bis(carboxamide)pyridine ligand framework has been synthesized by the insertion of elemental sulfur into the zinc–S(thiolate) bond of a zinc dithiolate complex ([LZn]2−). This paper reports on sulfur transfer reactions of this polysulfanido complex ([1]2−) and compares this behavior to known reactions of metal polysulfido complexes. Complex [1]2− was demonstrated to be in exchange with [LZn]2− and free elemental sulfur in solution. Although triphenylphosphine abstracts sulfur from [1]2− to form [LZn]2−, complex [LZn]2− can abstract sulfur from the zinc polysulfido complex (TMEDA)ZnS6 (TMEDA = N,N,N′,N′-tetramethylethylenediamine). The tetrasulfanido complex [1]2− can also transfer sulfur to dimethyl acetylenedicarboxylate to form a zinc dithiolene complex. These studies demonstrate that the zinc complex with a tetrasulfanido moiety can undergo similar reactions as metal complexes with purely inorganic polysulfido groups, although the final metal-containing products are different.

Graphical abstract: Sulfur transfer reactions of a zinc tetrasulfanido complex

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Article information

15 Apr 2020
12 May 2020
First published
12 May 2020

Dalton Trans., 2020, Advance Article
Article type

Sulfur transfer reactions of a zinc tetrasulfanido complex

M. Ballesteros II and E. Y. Tsui, Dalton Trans., 2020, Advance Article , DOI: 10.1039/D0DT01384F

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