STUDIES OF CHEMICAL EXCHANGE BY NUCLEAR MAGNETIC RELAXATION IN ROTATING FRAME
STUDIES OF CHEMICAL EXCHANGE BY NUCLEAR MAGNETIC RELAXATION IN ROTATING FRAME
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DOI：
10.1080/00268977000100611
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发表时间：
1970-01-01
影响因子：
1.7
通讯作者：
STRANGE, JH
中科院分区：
文献类型：
--
作者：
DEVERELL, C;MORGAN, RE;STRANGE, JH
本文用核磁共振研究了不同化学位移位之间的质子交换。在存在r.f.磁场所研究的体系是在环己烷中的椅对椅异构化。在215° K至250°K温度范围内测量了交换速率和化学位移。并与其它核磁共振方法进行了比较。这是研究化学交换的技术，并发现特别是在高交换率下具有优势。
The exchange of protons between sites with different chemical shift is studied by means of N.M.R. relaxation time measurements (T1ρ) in the presence of an r.f. magnetic field. The system studied is chair-to-chair isomerization in cyclohexane. The exchange rate and chemical shift are measured in the temperature range 215°kto 250°k. The method is compared with other N.M.R. techniques for studying chemical exchange and is found to have advantages particularly at high exchange rates.