Abstract

Infrared visible sum frequency generation (SFG) has been shown to be an effective in-situ spectroscopic probe of adsorbates at the air/solid, liquid/solid, and vacuum/solid interfaces.^{[1, 2]} Most importantly, compared with other surface techniques, it is capable of probing buried interfaces such as those under liquids or high pressure gases. We present results that demonstrate the extension of this technique to solid surface adsorbates in equilibrium with their vapor, and in particular, for acetonitrile on hydroxylated ZrCh in both the vapor and liquid phase.

© 1992 IQEC