A two-cardinal characterization of double spectra
β Scribed by Ronald Fagin
- Publisher
- John Wiley and Sons
- Year
- 1975
- Tongue
- English
- Weight
- 165 KB
- Volume
- 21
- Category
- Article
- ISSN
- 0044-3050
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π SIMILAR VOLUMES
A simple sequence in which =C precessions are allowed to develop with proton coupling for a period of 1/2 'J(CH) s before initiating decoupling and acquisition allows the determination of vicinal carbon-hydrogen coupling constants to facilitate the characterization of trisubstituted double bonds. Th
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## Abstract The twoβdimensional mass spectra (metastable mapping) of ten biogenic amines derived from the amino acid 2βphenylalanine are described. This technique permitted the identification of almost all the fragmentations of singly and doubly charged positive ions formed by electron impact and d
(1)H-detected two-dimensional double-/zero-quantum experiments are described for measurement of homonuclear (2)J(HH)-couplings of NH(2) or CH(2) groups in proteins. These experiments utilize multiple-quantum coherence for determination of the size and the absolute sign of the geminal scalar and dipo