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13 C and 1 H NMR study of N‐5 ′‐methylsalicylideneanilines
Author(s) -
Kishore K.,
Sathyanarayana D. N.,
Bhanu V. A.
Publication year - 1987
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.1260250602
Subject(s) - chemistry , carbon 13 nmr , chemical shift , stereochemistry , nmr spectra database , planar , spectral line , crystallography , physics , astronomy , computer graphics (images) , computer science
The 13 C and 1 H NMR spectra of six N‐5 ′ ‐methylsalicylideneanilines have been studied. Correlations of the chemical shifts of C‐α (azomethine carbon) and C‐4′ with the σ, F, R , σ 1 and σ R 0parameters have been examined for N‐5 ′‐methylsalicylideneanilines, and also for N ‐benzylideneanilines and N ‐salicylideneanilines. The results suggest that the first compounds have a nearly planar conformation whereas the second and third type of derivatives have a twisted conformation.