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The 1H NMR spectra of zinc complexes of pyridine-2-carbaldehyde 2′-pyridylhydrazone

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

Publisher
John Wiley and Sons
Year
1976
Tongue
English
Weight
464 KB
Volume
8
Category
Article
ISSN
0749-1581

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✦ Synopsis

Abstract

Proton magnetic resonance spectra at 100 MHz are described for some zinc complexes of the E‐ and Z‐isomers of pyridine‐2‐carbaldehyde 2′‐pyridylhydrazone in d~6~‐dimethylsulphoxide solution. Chemical shift data are discussed qualitatively in relation to factors such as the charge on the metal ion, the anisotropy of ligand nitrogen atoms, electric field effects caused by the dipole moment of nitrogen lone pairs, metal‐nonbonded‐hydrogen interactions, ring current effects and the conformational changes undergone by each isomer on coordination.

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