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通过衰减全反射红外浓度调制光谱法研究酮泛内酯与手性修饰铂之间的相互作用。

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

作者信息

Bonalumi Norberto, Bürgi Thomas, Baiker Alfons

机构信息

Institute for Chemical and Bioengineering, ETH-Hönggerberg, HCI, CH-8093 Zurich, Switzerland.

出版信息

J Am Chem Soc. 2003 Nov 5;125(44):13342-3. 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.

摘要

衰减全反射红外光谱(ATR-IR)与调制光谱相结合,能够研究在氢化条件下,酮泛内酯与由辛可尼定进行手性修饰的Pt/Al₂O₃薄膜之间的相互作用。光谱显示,酮泛内酯对修饰剂的吸附有显著影响,并表明修饰剂与反应物之间存在N-H-O氢键。通过与氯化N-甲基辛可尼定修饰的Pt/Al₂O₃进行对比研究,证实了后者。

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