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Spin diffusion in the Phosphorus-31 NMR relaxation in a layered crystalline α-Sn(IV) phosphate contaminated by paramagnetic impurities
Solid State Nuclear Magnetic Resonance ( IF 1.8 ) Pub Date : 2023-06-05 , DOI: 10.1016/j.ssnmr.2023.101875 Vladimir I Bakhmutov 1 , Douglas W Elliott 1 , Nattamai Bhuvanesh 1 , Hong-Cai Zhou 2
中文翻译：
被顺磁性杂质污染的层状结晶 α-Sn(IV) 磷酸盐中 Phosphor-31 NMR 弛豫中的自旋扩散
更新日期：2023-06-09
Solid State Nuclear Magnetic Resonance ( IF 1.8 ) Pub Date : 2023-06-05 , DOI: 10.1016/j.ssnmr.2023.101875 Vladimir I Bakhmutov 1 , Douglas W Elliott 1 , Nattamai Bhuvanesh 1 , Hong-Cai Zhou 2
Affiliation
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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.
中文翻译：
被顺磁性杂质污染的层状结晶 α-Sn(IV) 磷酸盐中 Phosphor-31 NMR 弛豫中的自旋扩散
通过固态 NMR 对层状晶体磷酸锡 Sn(IV) 的研究表明，依赖于旋转速率的磷酸基团的31 P T 1弛豫完全受EPR 发现的顺磁性离子的有限自旋扩散控制。自旋扩散常数D(SD)估计为2.04 10 -14 cm 2 s -1。该结论得到了磷酸锆1 – 1中31 P T 1时间测量的支持，也显示了顺磁性离子和抗磁性化合物 (NH 4 ) 2 HPO 4。
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