Place exchange reactions of alkyl thiols on gold nanoparticles.
The kinetics and equilibrium position of place exchange (alkylthiol-for-alkylthiol) reactions of gold nanoparticles are reported. These reactions were monitored via a gas chromatography analysis of structurally similar incoming and outgoing alkylthiols, as a function of time. The place exchange reactions described here proceed to an equilibrium position, where Keq approximately 1. The product-time data follow Langmuir diffusion kinetics.
Kassam
Adil
A
Department of Chemistry and Centre for Self-Assembled Chemical Structures, McGill University, 801 Sherbrooke Street W, Montreal, QC H3A 2K6, Canada.
Bremner
Glen
G
Clark
Brad
B
Ulibarri
Gerardo
G
Lennox
R Bruce
RB