Abstract
FTIR spectra of CO adsorbed on reduced Ni-containing USY zeolites with Si/Al = 30 besides weak H-bond with bridged hydroxyls and silanol groups and bonding to Ni2+ cations reveal formation of mono-, di- and tricarbonyls with Ni+ sites. The bands of adsorbed CO species are very narrow, with FWMH˜1–1.5 cm−1. The spectra of isotopically mixed nickel dicarbonyl species reveal the splitting, which shows that two CO molecules occupy non-equivalent positions, so that the species exist in two isomeric forms, despite the similarity of sites, following from the spectra of monocarbonyls. Possible explanations of this phenomenon are discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
