Adsorption of CO on Pt{111}: a synchrotron far-infrared RAIRS study

Synchrotron far-IR light has allowed the rapid collection of high quality reflection-absorption infrared spectra of the metal-adsorbate stretching vibrations of CO adsorbed in atop (464 cm(-1)) and bridging (3 76 cm(-1)) sites on Pt{1 1 1} at half monolayer coverage at 260 K. In contrast to earlier reports we find no evidence for a Fermi resonance induced splitting of the absorption band assigned to the bridge bonded species