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  3. Interaction between ketopantolactone and chirally modified Pt investigated by attenuated total reflection IR concentration modulation spectroscopy

Interaction between ketopantolactone and chirally modified Pt investigated by attenuated total reflection IR concentration modulation spectroscopy

  • J Am Chem Soc. 2003 Nov 5;125(44):13342-3. doi: 10.1021/ja037371a.
Norberto Bonalumi 1,  Thomas Bürgi,  Alfons Baiker
Affiliations

Affiliation

  • 1 Institute for Chemical and Bioengineering, ETH-Hönggerberg, HCI, CH-8093 Zurich, Switzerland.
PMID: 14583014 DOI: 10.1021/ja037371a
Abstract

The combination of ATR-IR and modulation spectroscopy allowed for the study of the interaction of ketopantolactone with Pt/Al2O3 films chirally modified by cinchonidine under hydrogenation conditions. The spectra reveal a significant influence of ketopantolactone on the adsorption of the modifier and indicate a N-H-O hydrogen bond between modifier and reactant. The latter was corroborated by a comparative study with N-methyl cinchonidine chloride modified Pt/Al2O3.

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