Nuclear overhauser effect (NOE) enhancement of 11B NMR spectra of borane adducts in the solid state

被引：15

作者：

Ashbrook, Sharon E.

Dowell, Nicholas G.

Prokes, Ivan

Wimperis, Stephen ^{[1
]}

机构：

[1] Univ Glasgow, Dept Chem, Glasgow G12 8QQ, Lanark, Scotland

[2] Univ Glasgow, WestCHEM, Glasgow G12 8QQ, Lanark, Scotland

[3] Univ St Andrews, Sch Chem, St Andrews KY16 9ST, Fife, Scotland

[4] Univ St Andrews, EaStCHEM, St Andrews KY16 9ST, Fife, Scotland

[5] UCL, Inst Neurol, London WC1N 3BG, England

[6] Univ Oxford, Dept Biochem, Oxford OX1 3QU, England

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2006年 / 128卷 / 21期

关键词：

D O I：

10.1021/ja0610939

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A strong 11B {1H} nuclear Overhauser effect (NOE) enhancement can be observed in solid-state 11B NMR spectra of borane adducts, yielding fractional enhancements, fI{S} = (I - I0)/I0, of the magic angle spinning (MAS) NMR signal of up to 155%. This is an interesting and unusual observation as 11B (spin I = 3/2) is a quadrupolar nucleus and the corresponding NOE is completely absent in solution. More generally, it shows that the NOE may have a wider role to play in solid-state NMR studies of dynamics than has been envisaged hitherto. Copyright © 2006 American Chemical Society.

引用

页码：6782 / 6783

页数：2

共 15 条

[1]

[Anonymous], 1989, NUCL OVERHAUSER EFFE, DOI DOI 10.1002/MRC.1260280819

[2] NMR, CALORIMETRIC, AND DIFFRACTION STUDY OF MOLECULAR MOTION IN CRYSTALLINE CARBORANES [J].