OBSERVATION AND ACCURATE QUANTIFICATION OF AL-27 MAS NMR-SPECTRA OF SOME AL2SIO5 POLYMORPHS CONTAINING SITES WITH LARGE QUADRUPOLE INTERACTIONS

被引：70

作者：

ALEMANY, LB

MASSIOT, D

SHERRIFF, BL

SMITH, ME

TAULELLE, F

机构：

[1] CNRS,CRPHT,F-45071 ORLEANS,FRANCE

[2] UNIV MANITOBA,DEPT GEOL,WINNIPEG R3T 2N2,MANITOBA,CANADA

[3] BRUKER ANALY MESSTECH,W-7512 RHEINSTETTEN,GERMANY

[4] UNIV PARIS 06,F-75230 PARIS 05,FRANCE

来源：

CHEMICAL PHYSICS LETTERS | 1991年 / 177卷 / 03期

关键词：

D O I：

10.1016/0009-2614(91)85035-U

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：

Al-27 MAS NMR spectra from two polymorphs of Al2SiO5, kyanite and andalusite, are presented. Unambiguous extraction of quadrupole interactions of up to 15.5 MHz (= C(q) = e2qQ/h) are possible from fast MAS (> 18 kHz) NMR spectra obtained at an applied magnetic field of 11.7 T. It is shown from a knowledge of the magnitude of C(q) combined with some recently introduced analysis that correction of the integrated intensity of the centreband to reflect accurately the aluminium distribution in these samples is possible.

引用

页码：301 / 306

页数：6

共 24 条

[1] AL-27 NMR-STUDY OF ALPO4-21 AND ANDALUSITE - ADVANTAGES OF HIGH-FIELD AND VERY FAST MAS [J].