EXAFS and fourier transform IR characterization of platinum carbonyl clusters [Pt 3 (CO) 6 ] n 2– (n= 3, 4) encapsulated in nay zeolites and their effective catalysis in the CO + NO reaction

The NaY zeolite-entrapped clusters [Pt3(CO)6]n2–(n= 3, 4), synthesized by a ship-in-bottle technique, were characterized by Pt-L edge EXAFS (extended X-ray absorption fine structure), Fourier transform IR and UV–VIS spectroscopy, and exhibited high catalytic activity in NO reduction by CO to give N2 and N2O at 300–473 K.