Enhancement of 13C NMR signals in solid C60 and C70 using laser-polarized xenon

被引:35
作者
Brunner, E [1 ]
Haake, M
Pines, A
Reimer, JA
Seydoux, R
机构
[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA
[2] Univ Calif Berkeley, Dept Chem, Berkeley, CA 94720 USA
[3] Univ Calif Berkeley, Dept Chem Engn, Berkeley, CA 94720 USA
关键词
D O I
10.1016/S0009-2614(98)00473-4
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
NMR signals emanating from surface nuclei of solids may be enhanced by the transfer of spin polarization from laser-polarized noble gases via SPINOE (spin polarization induced nuclear Overhauser effect). The present contribution describes experiments in which the spin polarization is transferred under magic angle spinning (MAS) from laser-polarized Xe-129 to C-13, a nuclear spin with a low gyromagnetic ratio in the fullerenes C-60 and C-70, polycrystalline materials with a low surface area. In C-70, differential enhancement of the NMR is observed for the different atomic sites in the molecule. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:112 / 116
页数:5
相关论文
共 28 条
[1]  
ALBERT MS, 1994, NATURE, V370, P199, DOI 10.1038/370199a0
[2]   TEMPERATURE-DEPENDENCE OF PB-207 MAS SPECTRA OF SOLID LEAD NITRATE - AN ACCURATE, SENSITIVE THERMOMETER FOR VARIABLE-TEMPERATURE MAS [J].
BIELECKI, A ;
BURUM, DP .
JOURNAL OF MAGNETIC RESONANCE SERIES A, 1995, 116 (02) :215-220
[3]   2-DIMENSIONAL C-13 NMR-STUDY OF ORIENTATIONAL ORDERING IN SOLID C60 [J].
BLINC, R ;
SELIGER, J ;
DOLINSEK, J ;
ARCON, D .
PHYSICAL REVIEW B, 1994, 49 (07) :4993-5002
[4]   THE RELATION BETWEEN THE XE-129 NMR CHEMICAL-SHIFTS OF XENON IN THE ZEOLITES NAX, NAY AND CUNAY [J].
BODDENBERG, B ;
HARTMANN, M .
CHEMICAL PHYSICS LETTERS, 1993, 203 (2-3) :243-247
[5]   Surface NMR using laser-polarized 129Xe under magic angle spinning conditions [J].
Brunner, E ;
Seydoux, R ;
Haake, M ;
Pines, A ;
Reimer, JA .
JOURNAL OF MAGNETIC RESONANCE, 1998, 130 (01) :145-148
[6]   XE-129 AND XE-131 NMR OF XENON ON SILICA SURFACES AT 77 K [J].
CHO, G ;
MORAN, LB ;
YESINOWSKI, JP .
APPLIED MAGNETIC RESONANCE, 1995, 8 (3-4) :549-572
[7]   High-volume production of laser-polarized Xe-129 [J].
Driehuys, B ;
Cates, GD ;
Miron, E ;
Sauer, K ;
Walter, DK ;
Happer, W .
APPLIED PHYSICS LETTERS, 1996, 69 (12) :1668-1670
[8]   TRANSIENT METHODS FOR IN-SITU NMR OF REACTIONS ON SOLID CATALYSTS USING TEMPERATURE JUMPS [J].
FERGUSON, DB ;
HAW, JF .
ANALYTICAL CHEMISTRY, 1995, 67 (18) :3342-3348
[9]   An in situ NMR probe with reagent flow and magic angle spinning [J].
Goguen, P ;
Haw, JF .
JOURNAL OF CATALYSIS, 1996, 161 (02) :870-872
[10]   Surface-enhanced NMR using continuous-flow laser-polarized xenon [J].
Haake, M ;
Pines, A ;
Reimer, JA ;
Seydoux, R .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1997, 119 (48) :11711-11712