Determination of Pb-207(2+) chemical shift tensors from precise powder lineshape analysis

被引：85

作者：

Neue, G

Dybowski, C

Smith, ML

Hepp, MA

Perry, DL

机构：

[1] UNIV DELAWARE,DEPT CHEM & BIOCHEM,NEWARK,DE 19716

[2] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,BERKELEY,CA 94720

来源：

SOLID STATE NUCLEAR MAGNETIC RESONANCE | 1996年 / 6卷 / 03期

关键词：

chemical shift tensor; NMR; Pb-207; referencing; solid state;

D O I：

10.1016/0926-2040(95)01225-7

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：

Pb-207 Solid State NMR powder spectra at 296 K are presented for PbSO4, PbMoO4, PbCrO4, PbCO3, PbTiO3, PbZrO3, Pb(NO3)(2), Pb(SCN)(2), and PbS. Analysis for principal values of the anisotropic chemical shift tensors of the generally very broad spectra included the frequency dependent excitation of the pulse sequence used. Commonly used solid and liquid secondary shift standards for lead were studied with high precision as a function of temperature between 295 K and 315 K to establish a clean Pb-207 shift scale. Errors in the existing literature are discussed.

引用

页码：241 / 250

页数：10