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13C and 15N-NMR studies of the azo-hydrazone tautomerism of some azo dyes

✍ Scribed by Antonin Lyčka; Valdimir Macháček

Publisher
Elsevier Science
Year
1986
Tongue
English
Weight
825 KB
Volume
7
Category
Article
ISSN
0143-7208

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📜 SIMILAR VOLUMES

15N NMR study of azo-hydrazone tautomeri
15N NMR study of azo-hydrazone tautomerism of 15N-labelled azo dyestuffs
✍ Antonín Lyčka; Dobroslav Šnobl; Vladimír Macháček; Miroslav Večeřa 📂 Article 📅 1981 🏛 John Wiley and Sons 🌐 English ⚖ 267 KB

## Abstract ^15^N chemical shifts of 3‐methyl‐1‐phenylpyrazole‐4,5‐dione 4‐phenylhydrazone (1), 4‐hydroxyazobenzene (2), 2‐hydroxy‐5‐__tert__‐butylazobenzene (3) and 1‐phenylazo‐2‐naphthol (4), monolabelled with ^15^N at α‐(compounds prepared from ^15^N‐aniline) and β‐positions (compounds prepared