13C NMR data for chlorine- or nitro-substituted azomethine dyes

The 13C NMR spectra of 1‐aryl‐substituted 3‐methyl‐2‐pyrazolin‐5‐ones and their azomethine dyes have been recorded and assigned. ortho‐Substituents (Cl and NO2) on the phenyl ring in the 1‐position of the pyrazoline moiety show a small influence on the chemical shift of the azomethine bond carbon at...

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Veröffentlicht in:	Magnetic resonance in chemistry 1990-09, Vol.28 (9), p.817-819
Hauptverfasser:	Haessner, Rainer, Hennig, Lothar, Gaca, Jerzy
Format:	Artikel
Sprache:	eng
Schlagworte:	1-Aryl-substituted 3-methyl-2-pyrazolin-5-ones and their azomethine dyes 13C NMR Atomic and molecular physics Exact sciences and technology Molecular properties and interactions with photons Nuclear resonance and relaxation Physics Substituent effects
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Beschreibung
Zusammenfassung:	The 13C NMR spectra of 1‐aryl‐substituted 3‐methyl‐2‐pyrazolin‐5‐ones and their azomethine dyes have been recorded and assigned. ortho‐Substituents (Cl and NO2) on the phenyl ring in the 1‐position of the pyrazoline moiety show a small influence on the chemical shift of the azomethine bond carbon atom, C‐4.
ISSN:	0749-1581 1097-458X
DOI:	10.1002/mrc.1260280915