Abstract
We have investigated the adsorption structure of glutaric acid (HOOC-(CH2)3-COOH) on the Cu(110) surface as a function of sample temperature using Temperature programmed desorption (TPD), Low energy electron diffraction (LEED) and Fourier transform infrared absorption spectroscopy (IRAS). At 400 K, glutaric acid adsorbs as a mono-glutarate (HOOC-(CH2)3-COO-) form corresponding to a structure of p(4×2). As the temperature increases to about 600 K, mono-glutarate changes to a bi-glutarate (-OOC-(CH2)3-COO-) corresponding to a structure of p(1×2). The bi-glutarate structure is stable until 600 K and then the desorption occurs.
