A pulse Fourier transform equivalent of the homonuclear (proton–proton) INDOR experiment
作者:
Klaus Bock,
Roland Burton,
Laurence D. Hall,
期刊:
Canadian Journal of Chemistry
(NRC Available online 1976)
卷期:
Volume 54,
issue 22
页码: 3526-3535
ISSN:0008-4042
年代: 1976
DOI:10.1139/v76-506
出版商: NRC Research Press
数据来源: NRC
摘要:
A simple, selective pulse sequence has been developed whereby the equivalent of a continuous wave INDOR nmr experiment, can be performed in the pulse Fourier transform mode of operation. The advantages and limitations of this approach for proton nmr studies are demonstrated with four samples, uridine (1), cytidine (2), vinyl acetate (3), and 2,3,4,-tri-O-acetyl-1,6-anhydro-β-D-mannopyranose (4). The observed responses depend upon the flip angle of the monitoring pulse. A small flip angle (20–30°) detects responses only for those transitions having an energy level in common with the perturbed transition, whereas a 90°-flip angle also results in responses from those transitions which have an indirect connectivity relationship.
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