在被顺磁性杂质污染的层状结晶α - 锡（IV）磷酸盐中，磷 - 31核磁共振弛豫中的自旋扩散。
Spin diffusion in the Phosphorus-31 NMR relaxation in a layered crystalline α-Sn(IV) phosphate contaminated by paramagnetic impurities.
作者信息
Bakhmutov Vladimir I, Elliott Douglas W, Bhuvanesh Nattamai, Zhou Hong-Cai
机构信息
Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA.
Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA.
出版信息
Solid State Nucl Magn Reson. 2023 Aug;126:101875. doi: 10.1016/j.ssnmr.2023.101875. Epub 2023 Jun 5.
The study of a layered crystalline Sn(IV) phosphate by solid-state NMR has demonstrated that the P T 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 cms. The conclusion was supported by the P T time measurements in zirconium phosphate 1-1, also showing paramagnetic ions and in diamagnetic compound (NH)HPO.
通过固态核磁共振对层状结晶磷酸锡（IV）的研究表明，磷酸根基团的磷-31横向弛豫（PT弛豫）取决于自旋速率，它完全由电子顺磁共振（EPR）发现的向顺磁性离子的有限自旋扩散所控制。自旋扩散常数D(SD)估计为2.04×10⁻⁸ cm²/s。在同样含有顺磁性离子的磷酸锆1-1以及抗磁性化合物（NH₄）₂HPO₄中的磷-31时间测量结果支持了这一结论。
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