Unexpected Formation of a Disulfide from 2-Mercaptopyridine and Co(II)

Phimphaka HARDING; David J. HARDING; Chaveng PAKAWATCHAI

Authors

Phimphaka HARDING Department of Chemistry, School of Science, Walailak University, Thasala, Nakhon Si Thammarat 80161
David J. HARDING Division of Chemistry, School of Science, Walailak University, Thasala, Nakhon Si Thammarat 80161
Chaveng PAKAWATCHAI Department of Chemistry, Faculty of Science, Prince of Songkla University, Songkhla 90112

Keywords:

Co(II), 2-Mercaptopyridine, X-ray structure, Disulfide

Abstract

The reaction between the Co(II) ion and 2-mercaptopyridine in the presence of base yields a disulfide Co(II) complex, namely [CoCl₂(2,2¢-dipyridyldisulfide)] 1. The structure has been determined by single crystal X-ray crystallography. The Co(II) ion coordinates to two chlorine atoms and two nitrogen atoms in a tetrahedral fashion. This result provides insight into the formation of 2,2¢-dipyridyldisulfide from 2-mercaptopyridine.

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