The substituent effects on the 13c chemical shifts of the azomethine carbon atom of n-(phenyl substituted) salycilaldimines

The Hammett correlations between 13C-NMR chemical shifts of the azomethine carbon atom and the corresponding substituent constants for thirtheen Schiff bases were established. Successful correlation of the chemical shifts with electrophilic substituent constants ó+ indicate significant resonance...

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Main Authors:	Drmanić Saša Ž., Marinković Aleksandar D., Nikolić Jasmina B., Jovanović Bratislav Ž.
Format:	Article
Language:	English
Published:	Serbian Chemical Society 2012-01-01
Series:	Journal of the Serbian Chemical Society
Subjects:	13C-NMR chemical shifts Hammett equation substituent constants N-(phenyl substituted) salycilaldimines
Online Access:	http://www.doiserbia.nb.rs/img/doi/0352-5139/2012/0352-51391200033D.pdf

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spelling	doaj-c6b90709cea64f95bbf6fd90515b6d482020-11-24T23:18:56ZengSerbian Chemical Society Journal of the Serbian Chemical Society0352-51392012-01-01778993100110.2298/JSC120319033DThe substituent effects on the 13c chemical shifts of the azomethine carbon atom of n-(phenyl substituted) salycilaldiminesDrmanić Saša Ž.Marinković Aleksandar D.Nikolić Jasmina B.Jovanović Bratislav Ž.The Hammett correlations between 13C-NMR chemical shifts of the azomethine carbon atom and the corresponding substituent constants for thirtheen Schiff bases were established. Successful correlation of the chemical shifts with electrophilic substituent constants ó+ indicate significant resonance interaction of the substituents on the aniline ring with the azomethine carbon atom in the examined series of imines. The demand for electrons in the investigated compounds was compared to that of the N-benzylidenanilines and N-(phenyl substituted) pyridinealdimines. The way of transmission of the substituent effects was discussed and they are separated into resonance and inductive effects. Inductive effects prevail over resonance effects.http://www.doiserbia.nb.rs/img/doi/0352-5139/2012/0352-51391200033D.pdf13C-NMR chemical shiftsHammett equationsubstituent constantsN-(phenyl substituted) salycilaldimines
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Drmanić Saša Ž. Marinković Aleksandar D. Nikolić Jasmina B. Jovanović Bratislav Ž.
spellingShingle	Drmanić Saša Ž. Marinković Aleksandar D. Nikolić Jasmina B. Jovanović Bratislav Ž. The substituent effects on the 13c chemical shifts of the azomethine carbon atom of n-(phenyl substituted) salycilaldimines Journal of the Serbian Chemical Society 13C-NMR chemical shifts Hammett equation substituent constants N-(phenyl substituted) salycilaldimines
author_facet	Drmanić Saša Ž. Marinković Aleksandar D. Nikolić Jasmina B. Jovanović Bratislav Ž.
author_sort	Drmanić Saša Ž.
title	The substituent effects on the 13c chemical shifts of the azomethine carbon atom of n-(phenyl substituted) salycilaldimines
title_short	The substituent effects on the 13c chemical shifts of the azomethine carbon atom of n-(phenyl substituted) salycilaldimines
title_full	The substituent effects on the 13c chemical shifts of the azomethine carbon atom of n-(phenyl substituted) salycilaldimines
title_fullStr	The substituent effects on the 13c chemical shifts of the azomethine carbon atom of n-(phenyl substituted) salycilaldimines
title_full_unstemmed	The substituent effects on the 13c chemical shifts of the azomethine carbon atom of n-(phenyl substituted) salycilaldimines
title_sort	substituent effects on the 13c chemical shifts of the azomethine carbon atom of n-(phenyl substituted) salycilaldimines
publisher	Serbian Chemical Society
series	Journal of the Serbian Chemical Society
issn	0352-5139
publishDate	2012-01-01
description	The Hammett correlations between 13C-NMR chemical shifts of the azomethine carbon atom and the corresponding substituent constants for thirtheen Schiff bases were established. Successful correlation of the chemical shifts with electrophilic substituent constants ó+ indicate significant resonance interaction of the substituents on the aniline ring with the azomethine carbon atom in the examined series of imines. The demand for electrons in the investigated compounds was compared to that of the N-benzylidenanilines and N-(phenyl substituted) pyridinealdimines. The way of transmission of the substituent effects was discussed and they are separated into resonance and inductive effects. Inductive effects prevail over resonance effects.
topic	13C-NMR chemical shifts Hammett equation substituent constants N-(phenyl substituted) salycilaldimines
url	http://www.doiserbia.nb.rs/img/doi/0352-5139/2012/0352-51391200033D.pdf
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The substituent effects on the 13c chemical shifts of the azomethine carbon atom of n-(phenyl substituted) salycilaldimines

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