磷酸铝分子筛的固态27Al核磁共振研究。通过四极矩章动和双旋转提高分辨率。
Solid-state 27Al NMR studies of aluminophosphate molecular sieves. Enhanced resolution by quadrupole nutation and double-rotation.
作者信息
Rocha J, Klinowski J, Barrie P J, Jelinek R, Pines A
机构信息
Department of Chemistry, University of Cambridge, UK.
出版信息
Solid State Nucl Magn Reson. 1992 Nov;1(4):217-25. doi: 10.1016/s0926-2040(10)80007-4.
PMID:1365734
Abstract
Solid-state 27Al NMR spectra of several aluminophosphate molecular sieves have been recorded with conventional magic-angle spinning (MAS), double-rotation (DOR) and quadrupole nutation with fast MAS. Enhanced resolution was obtained in the quadrupole nutation experiment at certain radiofrequency pulse strengths. This extra resolution can be comparable to that attainable using DOR, and does not introduce spinning sidebands.
摘要
几种磷酸铝分子筛的固态27Al核磁共振谱已通过传统的魔角旋转（MAS）、双旋转（DOR）以及快速MAS下的四极矩章动进行记录。在特定射频脉冲强度下的四极矩章动实验中获得了更高的分辨率。这种额外的分辨率可与使用DOR所能达到的分辨率相媲美，并且不会引入旋转边带。
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