Two-dimensional 1H- and 13C-NMR and 15N-NMR spectra of three azo dyes derived from J-acid and 4-nitroaniline
✍ Scribed by Antonín Lyčka; Josef Jirman; Jiří Podstata
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- English
- Weight
- 525 KB
- Volume
- 8
- Category
- Article
- ISSN
- 0143-7208
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## REFERENCE DATA carbons, for various substituent groups and positions were carried out by gated decoupling with NOE. ## RESULTS AND DISCUSSION The I3C NMR chemical shifts of the compounds are shown in Tables 123; 'J(CH) and long-range coupling constants of 2, 9, 13 and 18, measured by gated d