Using (2) H labelling to improve the NMR detectability of pyridine and its derivatives by SABRE.
Using (2) H labelling to improve the NMR detectability of pyridine and its derivatives by SABRE.
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DOI:
10.1002/mrc.4703
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发表时间:
2018-07
期刊:
影响因子:
--
通讯作者:
Duckett SB
中科院分区:
文献类型:
--
作者:
Norcott P;Burns MJ;Rayner PJ;Mewis RE;Duckett SB
By introducing a range of 2H labels into pyridine and the para‐substituted agents, methyl isonicotinate and isonicotinamide, we significantly improve their NMR detectability in conjunction with the signal amplification by reversible exchange process. We describe how the rates of T 1 relaxation for the remaining 1H nuclei are increased and show how this leads to a concomitant increase in the level of 1H and 13C hyperpolarization that can ultimately be detected.
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