Lindblad Relaxation of Multiple Quantum NMR Coherence in Two-Spin Systems

被引：0
作者：
Bochkin, G. A. [1 ]
Fel'dman, E. B. [1 ]
Kuznetsova, E. I. [1 ]
Vasil'ev, S. G. [1 ]
机构：
[1] RAS, Fed Res Ctr Problems Chem Phys & Med Chem, Ac Semenov Ave 1, Chernogolovka 142432, Moscow Oblast, Russia
来源：
APPLIED MAGNETIC RESONANCE | 2024年 / 55卷 / 08期
关键词：
DYNAMICS;
D O I：
10.1007/s00723-024-01668-6
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The Lindblad equation for dissipative open systems is applied for an investigation of relaxation of multiple-quantum (MQ) NMR coherences in two-spin systems. We choose two examples of two-spin systems. One of them is the zigzag proton chain in a single crystal of hambergite in such an orientation that one of the two intra-chain dipolar coupling constants becomes zero. Then, the chain consists of well-isolated pairs of spins, with the spins of each pair coupled by the dipole-dipole interaction. The second example of a two-spin system is a single crystal of gypsum in which protons belong to water molecules. The MQ NMR dynamics with relaxation was investigated for different preparation times of the MQ NMR experiment.
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页码：855 / 868
页数：14
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