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1H NMR spectra of E and Z pyridine-2-carbaldehyde 2′-pyridylhydrazone and related compounds

✍ Scribed by C. F. Bell; G. R. Mortimore

Publisher
John Wiley and Sons
Year
1975
Tongue
English
Weight
703 KB
Volume
7
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Proton magnetic resonance spectra at 100 MHz are reported for the E‐ and Z‐isomers of pyridine‐2‐carbaldehyd 2′‐ pyridylhydrazone in carbon tetrachloride, d~6~‐dimethylsulphoxide and d~6~‐benzene solutions, and for various monomethylated derivatives in d~6~‐dimethylsulphoxide. The spectral parameters obtained by analysis with the help of LAOCOON 3 are discussed in terms of solvent effects and the chemical shift changes consequent upon isomerisation are evaluated. Some conclusions are reached concerning the preferred conformations of the E‐ and Z‐isomers of pyridine‐2‐carbaldehyde 2′‐pyridylhydrazone.

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