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Fourier transfer Raman spectroscopy of pyridine adsorbed onto Y-zeolites

FT near-infrared excited Raman spectroscopy is used to get a better insight in the adsorption of pyridine onto NaxHyY zeolites. It appears that five different adsorption sites can be monitored; `physisorbed,' OH bonded, Lewis and two distinct Bronsted sites. Comparison to infrared spectroscopy reveals better understanding of the vibrational spectra.