Issue 2, 1996
From the journal:

Journal of the Chemical Society, Perkin Transactions 2

Kinetic study of the stability of (NH2)2CSSC(NH2)22+

L. Garcia Rio,   Carl G. Munkley  and  Geoffrey Stedman  

Abstract

The kinetics of the decomposition of formamidine disulfide dihydrochloride, (NH2)2CSSC(NH2)22+ 2Cl–, in aqueous solution at 25 °C are general base catalysed, and rate constants have been measured over the pH range 1.91–9.03. Analysis of the data yields ionisation constants pK1= 5.49, pK2= 7.66 and rate constants for deprotonation of the substrate by OH– and H2O. For the doubly charged cation, reaction occurs through a small concentration of a reactive tautomer, (HN[double bond, length half m-dash])(NH3+)CSSC+(NH2)2, which is attacked by H2O. The singly charged cation reacts by parallel pathways involving OH– and H2O as attacking bases.

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Article information

DOI
https://doi.org/10.1039/P29960000159
Article type
Paper

J. Chem. Soc., Perkin Trans. 2, 1996, 159-162

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Kinetic study of the stability of (NH2)2CSSC(NH2)22+

L. G. Rio, C. G. Munkley and G. Stedman, J. Chem. Soc., Perkin Trans. 2, 1996, 159 DOI: 10.1039/P29960000159

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