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Updated: Oct 26, 2026

Synthesis of a Thiol Building Block for the Crystallization of a Semiconducting Gyroidal Metal-sulfur Framework
Published on: April 9, 2018
Proton-Induced Perthionitrite-Mediated Zinc Thiolate Persulfidation
Madeline N Riffel1, Oluwafemi O Ishola1, Allen G Oliver1
1Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana, USA.
Abstract:
The perthionitrite anion, SSNO-, has been proposed as a S0 source for persulfidation of biological thiol and thiolate compounds. Here, SSNO- reacts with an iminopyridine-supported zinc thiolate complex to form a perthiolate-supported zinc perthionitrite complex, acting as both a ligand to zinc and as a sulfur source for persulfidation of the thiolate moiety. A related zinc thionitrite complex was also prepared, enabling comparison of zinc thionitrite and zinc thiolate persulfidation. In these compounds, the zinc-bound SNO- ligand is selectively persulfidated over the zinc-bound thiolate moiety upon addition of S8, cleanly forming SSNO- rather than the perthiolate. This work therefore demonstrates that direct S0 transfer from SSNO- to thiolate anions is thermodynamically unfavorable and must instead be mediated by preceding SSNO- decomposition.
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