DETECTION OF MULTIPLE BORON SITES IN GLASSES BY B-11 SATELLITE TRANSITION NUCLEAR-MAGNETIC-RESONANCE SPECTROSCOPY

被引：17

作者：

JAGER, C

HERZOG, K

THOMAS, B

FEIKE, M

KUNATHFANDREI, G

机构：

[1] MAX PLANCK INST POLYMER RES,D-55021 MAINZ,GERMANY

[2] TECH UNIV BERGAKAD FREIBERG,INST ANALYT CHEM,D-09596 FREIBERG,GERMANY

来源：

SOLID STATE NUCLEAR MAGNETIC RESONANCE | 1995年 / 5卷 / 01期

关键词：

GLASSES; SATELLITE TRANSITION; B-11 NUCLEAR MAGNETIC RESONANCE; MAGIC-ANGLE SPINNING;

D O I：

10.1016/0926-2040(95)00048-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：

The magic-angle spinning sidebands of the satellite transition (ST, m = +/-3/2 <----> +/-1/2) for B-11 nuclear magnetic resonance ((11) B ST spectroscopy) have been used to detect multiple boron sites in Na2O-B2O3-SiO2 glasses. The experimental details and data analysis are described, how multiple BO4 and BO3 units can be distinguished using standard magic-angle spinning. For a 16Na(2)O-30B(2)O(3)-53.9SiO(2) glass (0.1 MnO) two BO4 units with chemical shifts of -2.5 and 0 ppm were found which differ considerably in their quadrupole interaction. Besides this we found three different BO3 units with approximate chemical shifts of 17, 15, and 19 ppm. The results are compared with earlier measurements.

引用

页码：51 / 61

页数：11

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