Surface Enhanced NMR Spectroscopy by Dynamic Nuclear Polarization

被引：466

作者：

Lesage, Anne ^{[1
]}

Lelli, Moreno ^{[1
]}

Gajan, David ^{[2
]}

Caporini, Marc A. ^{[3
]}

Vitzthum, Veronika ^{[3
]}

Mieville, Pascal ^{[3
]}

Alauzun, Johan ^{[4
]}

Roussey, Arthur ^{[2
]}

Thieuleux, Chloe ^{[2
]}

Mehdi, Ahmad ^{[4
]}

Bodenhausen, Geoffrey ^{[3
,5
]}

Coperet, Christophe ^{[2
]}

Emsley, Lyndon ^{[1
]}

机构：

[1] Univ Lyon, CNRS, ENS Lyon, UCB Lyon 1,Ctr RMN Tres Hauts Champs, F-69100 Villeurbanne, France

[2] Univ Lyon 1, Inst Chim Lyon, CNRS, ESCPE Lyon,UMR 5265,C2P2, F-69100 Villeurbanne, France

[3] Ecole Polytech Fed Lausanne, Inst Sci & Ingn Chim, CH-1015 Lausanne, Switzerland

[4] Univ Montpellier 2, Inst Charles Gerhardt, UMR 5352, F-34095 Montpellier 5, France

[5] Ecole Normale Super, CNRS, Dept Chim, F-75231 Paris 05, France

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2010年 / 132卷 / 44期

基金：

瑞士国家科学基金会;

关键词：

SOLID-STATE NMR; MESOPOROUS SILICA; ACID GROUPS; CHEMISTRY; EXCHANGE; ROUTE;

D O I：

10.1021/ja104771z

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

It is shown that surface NMR spectra can be greatly enhanced using dynamic nuclear polarization. Polarization is transferred from the protons of the solvent to the rare nuclei (here carbon-13 at natural isotopic abundance) at the surface, yielding at least a 50-fold signal enhancement for surface species covalently incorporated into a silica framework.

引用

页码：15459 / 15461

页数：3

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