Two-dimensional 1H- and 13C-NMR spectra of some azo dyes containing amino or acetamido groups
✍ Scribed by Antonín Lyčka; Josef Jirman; Poul Erik Hansen
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 552 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0143-7208
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## Abstract The ^15^N, ^13^C and ^1^H NMR spectra of 2:1 cobalt(III) complexes of azo dyes and their ^15^N isotopomers, derived from substituted 2‐hydroxyaniline azo coupling products with acetoacetanilide, were measured. It was found that, in contrast to precursors existing fully in their hydrazon
The 27Al, 15N, 13C and 1H NMR spectra in DMSO and 27Al and 15N magic angle spinning NMR spectra of 2 : 1 aluminium(III) complexes derived from 5-chloro-2-hydroxyaniline azo coupling products with acetoacetanilide, 3-methyl-1-phenylpyrazol-5-one and 2-naphthol were measured and analysed. It was found