Molecular Transfer of Nonequilibrium Nuclear Spin Magnetization
Molecular Transfer of Nonequilibrium Nuclear Spin Magnetization
复制标题
非平衡核自旋磁化的分子转移
DOI:
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复制
发表时间:
1957
期刊:
影响因子:
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通讯作者:
Don D. Thompson
中科院分区:
文献类型:
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作者:
H. Mcconnell;Don D. Thompson
A new magnetic resonance technique has been developed to measure the rates of fast molecular processes. The method involves the experimental introduction of a nonequilibrium nuclear magnetization in one system A, and the subsequent measurement of the rate at which rapid molecular processes transfer this nonequilibrium magnetization to a second system B. Systems A and B may correspond to different chemical sites in a molecule that give rise to a chemical shift, or to sites that are distinct because of electron coupled spin‐spin interaction. This technique has been applied to determinations of the rate of proton exchange between ammonium ions in aqueous solution.