The reactivity of 4,4'-dipyridyldisulfide towards iodine monochloride

What is it about?

Disulfides are a significant class of organic compounds, widely recognized for their biological and pharmacological applications, particularly due to their antioxidant and prooxidant properties. It is well known that the oxidation of diaryldisulfides by dibromine and dichlorine results in the cleavage of the sulfur-sulfur bond, known as the Zincke reaction. However, the reaction with diiodine, the mildest oxidant, does not lead to the cleavage of the S-S bond. This study explores the reactivity of 4,4'-dipyridyldisulfide towards iodine monochloride and discuss the structure of 4,4'-(disulfanediyl)dipyridinium chloride triiodide.

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Photo by Umberto on Unsplash

Photo by Umberto on Unsplash

Why is it important?

Our work in the field of σ-hole interactions, including halogen and chalcogen bonds, have gained increased attention in recent years due to the potential employment of such materials for various applications including their eco-friendly use as leaching agents for toxic and precious metals in waste from electrical and electronic equipment (WEEE).