Spin diffusion in the Phosphorus-31 NMR relaxation in a layered crystalline α-Sn(IV) phosphate contaminated by paramagnetic impurities

被引：2

作者：

Bakhmutov, Vladimir I. ^{[1
,3
]}

Elliott, Douglas W. ^{[1
]}

Bhuvanesh, Nattamai ^{[1
]}

Zhou, Hong-Cai ^{[1
,2
]}

机构：

[1] Texas A&M Univ, Dept Chem, College Stn, TX 77843 USA

[2] Texas A&M Univ, Dept Mat Sci & Engn, College Stn, TX 77843 USA

[3] Texas A&M Univ, Dept Chem, POB 30012, College Stn, TX 77842 USA

来源：

SOLID STATE NUCLEAR MAGNETIC RESONANCE | 2023年 / 126卷

关键词：

Metal phosphates; 1 H MAS NMR; Relaxation times; Mobility; NUCLEAR-MAGNETIC-RESONANCE; SOLID-STATE NMR; ZIRCONIUM-PHOSPHATE; LATTICE-RELAXATION; CENTERS; POLARIZATION; PLATELETS; DELIVERY;

D O I：

10.1016/j.ssnmr.2023.101875

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 study of a layered crystalline Sn(IV) phosphate by solid-state NMR has demonstrated that the 31P T1 relaxation of phosphate groups, dependent on spinning rate is completely controlled by the limited spin diffusion to paramagnetic ions found by EPR. The spin-diffusion constant, D(SD), was estimated as 2.04 10-14 cm2s 1. The conclusion was supported by the 31P T1 time measurements in zirconium phosphate 1-1, also showing paramagnetic ions and in diamagnetic compound (NH4)2HPO4.

引用

页数：5

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