FORMATION AND REACTIVITY OF [Au(13CN)4(')], [Au(3CN)3CI(')] AND [Au(aCN)(SR)I'] STUDIED BY C NMR SPECTROSCOPY
1994
Study of Gold Complexes and Their Reactions
publication
Author Information
Author(s): Annapurna Jagarlamudi, A. A. Isab, C. Frank Shaw III, A. Munoz
Primary Institution: University of Wisconsin-Milwaukee
Hypothesis
The chemistry of Au(CN)4- and its reactivity with thiols and acids is worth examining.
Conclusion
The formation of Au(CN)4- can lead to thiol oxidation and a redox cycle involving gold(I) and gold(III).
Supporting Evidence
- Au(CN)2- is generated from gold(I) complexes and thiocyanate during the oxidative burst.
- Au(CN)4- can be generated by reacting AuCI4- with 4 equivalents of N-.
- The equilibrium lies far to the left even under drastic conditions in HCl solutions.
- Slow hydrolysis of cyanide to formamide drives the formation of [Au(CN)3CI-].
- Redox reactions with thiols lead to the formation of dicyanogold(I) and RSSR.
Takeaway
This study looks at how certain gold compounds react with other chemicals, which could happen in the body.
Methodology
C NMR spectroscopy was used to study the formation and reactivity of various gold complexes.
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