I.r. spectroscopic evidence of a well defined rhodium dicarbonyl in highly dealuminated zeolite Y, formed by interaction of carbon monoxide with exchanged rhodium

Abstract

I.r. spectra with unusually sharp (full width at half maximum ⩽5 cm^–1) carbonyl bands and their corresponding ¹³CO satellites are observed following the interaction of CO with both reduced and oxidized rhodium introduced into dealuminated zeolite Y (US-Ex), indicating the formation of a wall defined rhodium(I) dicarbonyl compound with zeolite framework oxygen as ligands.