Observation of Parahydrogen-Induced Polarization in Heterogeneous Hydrogenation on Supported Metal Catalysts

Contrary to popular opinion, two H atoms from the same H2 molecule can end up in the same product molecule and retain their spin correlation during heterogeneous hydrogenation on supported metal catalysts and thus produce parahydrogen‐induced nuclear spin polarization in the reaction products (see p...

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Published inAngewandte Chemie (International ed.) Vol. 47; no. 8; pp. 1492 - 1495
Main Authors Kovtunov, Kirill V, Beck, Irene E, Bukhtiyarov, Valery I, Koptyug, Igor V
Format Journal Article
LanguageEnglish
Published Weinheim Wiley-VCH Verlag 08.02.2008
WILEY-VCH Verlag
WILEY‐VCH Verlag
Subjects
heterogeneous catalysis
hydrogenation
NMR spectroscopy
parahydrogen-induced polarization
supported catalysts
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Summary:Contrary to popular opinion, two H atoms from the same H2 molecule can end up in the same product molecule and retain their spin correlation during heterogeneous hydrogenation on supported metal catalysts and thus produce parahydrogen‐induced nuclear spin polarization in the reaction products (see picture). For 0.6‐nm Pt clusters on alumina, the contribution of the pairwise addition route in the hydrogenation of propylene amounts to at least 3 %.
Bibliography:http://dx.doi.org/10.1002/anie.200704881
Russian President's Program of Support of the Leading Scientific Schools - No. NSch-4821.2006.3
Russian Science Support Foundation
istex:D194A53FA10A6B7B895A188FF3EDA5117835F48C
Russian Science and Innovation Agency - No. 02.513.11.3203
SB RAS - No. integration grant 11
ark:/67375/WNG-FZ7MS424-N
RFBR - No. 05-03-32472; No. 07-03-12147
RAS - No. 5.1.1; No. 5.2.3
This work was partially supported by the grants from RFBR (05-03-32472 and 07-03-12147), SB RAS (integration grant 11), RAS (5.1.1 and 5.2.3), the Russian President's Program of Support of the Leading Scientific Schools (NSch-4821.2006.3), and Russian Science and Innovation Agency (contract no. 02.513.11.3203). I.V.K. thanks the Russian Science Support Foundation for financial support.
ArticleID:ANIE200704881
This work was partially supported by the grants from RFBR (05‐03‐32472 and 07‐03‐12147), SB RAS (integration grant 11), RAS (5.1.1 and 5.2.3), the Russian President's Program of Support of the Leading Scientific Schools (NSch‐4821.2006.3), and Russian Science and Innovation Agency (contract no. 02.513.11.3203). I.V.K. thanks the Russian Science Support Foundation for financial support.
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ISSN:1433-7851
1521-3773
DOI:10.1002/anie.200704881