Abstract

The adsorption site and bond distances for CO adsorbed in the (2 × 1) overlayer on Cu{110} have been determined with scanned energy mode photoelectron diffraction. The molecule is found to occupy an atop site with a metal-carbon separation of 1.87 (±0.02) Å). The literature value for the CO stretching frequency is 2088 cm−1. These and other results indicate that the traditional correlation between adsorption site and CO stretching frequency still appears to hold for copper surfaces.

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