29Si chemical shift tensors of silyl silicate cages

被引：5

作者：

Backer, M

Grimmer, AR

Auner, N

John, P

Weis, J

机构：

[1] Humboldt Univ, Fachinst Anorgan & Allgemeine Chem, Aussenstelle Adlershoft, D-12489 Berlin, Germany

[2] Humboldt Univ, Fachinst Anorgan & Allgemeine Chem, D-10115 Berlin, Germany

[3] Wacker Chem GMBH Geschaftsbereich S, Werk Burghausen, D-84489 Burghausen, Germany

来源：

SOLID STATE NUCLEAR MAGNETIC RESONANCE | 1997年 / 9卷 / 2-4期

关键词：

anisotropy; chemical shift tensors; linewidth; Si-29; NMR; silyl silicate cages;

D O I：

10.1016/S0926-2040(97)00068-4

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：

Static and Si-29 Cp MAS spectra (spinning rates of 2000 and 500 Hz) of six silyl silicate cages are analyzed by deconvolution and simulation. The principal values of the various Si-29 chemical shift tensors provide information about the point symmetry of the Si sites. The intensities of the signals correspond sufficiently well with the stoichiometries. (C) 1997 Elsevier Science B.V.

引用

页码：241 / 255

页数：15

共 25 条

[1] SYNTHESIS OF FUNCTIONALIZED SPHEROSILICATES - NOVEL POLYHEDRAL POLYREACTIVE OLIGOMERS [J].