EVIDENCE FOR SLOW TUMBLING OF SODIUM-IONS FROM THE NA-23 NMR-SPECTRUM OF HYDRATED NAY ZEOLITE

被引：17

作者：

CHALLONER, R ^{[1
]}

HARRIS, RK ^{[1
]}

机构：

[1] UNIV DURHAM,DEPT CHEM,SRD,DURHAM DH1 3LE,ENGLAND

来源：

ZEOLITES | 1991年 / 11卷 / 03期

关键词：

NA-23; NMR; NAY ZEOLITE; CATION MOBILITY; NUTATION;

D O I：

10.1016/S0144-2449(05)80230-1

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 value of Na-23 n.m.r. as an analytical tool for providing information on the sodium cation distribution in hydrated NaY zeolite is discussed. A sample of NaY zeolite is investigated by straighforward single-pulse experiments, inversion-recovery sequences (the duration of the sampling pulse is varied), variable temperature measurements, and nutation experiments. The results suggest that details concerning the mobility of the sodium cations are essential for the assignment of peaks in the Na-23 spectrum to distinct positions in the NaY framework.

引用

页码：265 / 269

页数：5

共 12 条

[1] NMR LINE SHIFTS CAUSED BY THE 2ND-ORDER QUADRUPOLAR INTERACTION [J].