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A study of the coadsorption of trifluoroacetic acid (TFA) and 2,2,2-trifluoroacetophenone (TFAP) on Pt(111) was carried out using scanning tunneling microscopy (STM) measurements. The investigation is based on literature reports that the conversion rate and the enantiomeric excess for the hydrogenation of TFAP on cinchona modified Pt/Al2O3 are very sensitive to the presence of small amounts of TFA...
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