If you want to simply proof adsorption of your compound on the Au surface, you can selectively cleave the Au-S bond of the monolayer by UV-light irradiation (

If you use gold nanoparticles functionalized with thiol molecules, you could observe a broad Raman band around 200-300 cm-1 by SERS effect, attributable to the Au-S stretching mode.

Hi to all

if I have an organic compound with a S-Au(I) group, has it a typical spectrophotometric feature leading to distinguish it from the R-SH form?

thanks