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
  • 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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