Observation of parahydrogen-induced polarization in heterogeneous hydrogenation on supported metal catalysts

被引：161

作者：

Kovtunov, Kirill V. ^{[1
]}

Beck, Irene E. ^{[2
]}

Bukhtiyarov, Valery I. ^{[2
]}

Koptyug, Igor V. ^{[1
]}

机构：

[1] Int Tomography Ctr, Novosibirsk 630090, Russia

[2] Boreskov Inst Catalysis, Novosibirsk 630090, Russia

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2008年 / 47卷 / 08期

关键词：

heterogeneous catalysis; hydrogenation; NMR spectroscopy; parahydrogen-induced polarization; supported catalysts;

D O I：

10.1002/anie.200704881

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

(Chemical Equation Presented) 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%. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.

引用

收藏

页码：1492 / 1495

页数：4

相关论文

共 25 条

[11] Applications of the parahydrogen phenomenon: A chemical perspective [J].

Duckett, SB ;

Sleigh, CJ .

PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY, 1999, 34 (01) :71-92

[12] In situ PHIP NMR - a new tool to investigate hydrogenation mediated by colloidal catalysts [J].

Eichhorn, A ;

Koch, A ;

Bargon, J .

JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, 2001, 174 (1-2) :293-295

[13] PARAHYDROGEN-INDUCED POLARIZATION - A NEW SPIN ON REACTIONS WITH H2 [J].

EISENBERG, R .

ACCOUNTS OF CHEMICAL RESEARCH, 1991, 24 (04) :110-116

[14] PARA HYDROGEN INDUCED POLARIZATION IN HYDROGENATION REACTIONS [J].

EISENSCHMID, TC ;

KIRSS, RU ;

DEUTSCH, PP ;

HOMMELTOFT, SI ;

EISENBERG, R ;

BARGON, J ;

LAWLER, RG ;

BALCH, AL .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1987, 109 (26) :8089-8091

[15] Design and implementation of 13C hyperpolarization from para-hydrogen, for new MRI contrast agents [J].

Goldman, M ;

Jóhannesson, H ;

Axelsson, O ;

Karlsson, M .

COMPTES RENDUS CHIMIE, 2006, 9 (3-4) :357-363

[16] Distinctive reactivities of surface bound H and bulk H for the catalytic hydrogenation of acetylene [J].

Haug, KL ;

Bürgi, T ;

Trautman, TR ;

Ceyer, ST .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (34) :8885-8886

[17] para-hydrogen-induced polarization in heterogeneous hydrogenation reactions [J].

Koptyug, Igor V. ;

Kovtunov, Kirill V. ;

Burt, Scott R. ;

Anwar, M. Sabieh ;

Hilty, Christian ;

Han, Song-I ;

Pines, Alexander ;

Sagdeev, Renad Z. .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2007, 129 (17) :5580-5586

[18] 13C imaging -: a new diagnostic platform [J].

Månsson, S ;

Johansson, E ;

Magnusson, P ;

Chai, CM ;

Hansson, G ;

Petersson, JS ;

Ståhlberg, F ;

Golman, K .

EUROPEAN RADIOLOGY, 2006, 16 (01) :57-67

[19] Parahydrogen induced polarization [J].

Natterer, J ;

Bargon, J .

PROGRESS IN NUCLEAR MAGNETIC RESONANCE SPECTROSCOPY, 1997, 31 :293-315

[20] NET NMR ALIGNMENT BY ADIABATIC TRANSPORT OF PARA-HYDROGEN ADDITION-PRODUCTS TO HIGH MAGNETIC-FIELD [J].

PRAVICA, MG ;

WEITEKAMP, DP .

CHEMICAL PHYSICS LETTERS, 1988, 145 (04) :255-258