THE EXCHANGE PROCESSES IN ZINC-COMPLEXES OF O-VANILLIN SALICYLOYLHYDRAZONE AS STUDIED BY 2-DIMENSIONAL NMR

Authors
AGARWALA BV PURI V NAGANAGOWDA GA KHETRAPAL CL
Citation
Bv. Agarwala et al., THE EXCHANGE PROCESSES IN ZINC-COMPLEXES OF O-VANILLIN SALICYLOYLHYDRAZONE AS STUDIED BY 2-DIMENSIONAL NMR, Journal of the Indian Chemical Society, 70(11-12), 1993, pp. 967-972
Citations number
19
Categorie Soggetti
Chemistry
Journal title
Journal of the Indian Chemical Society → ACNP
ISSN journal
00194522
Volume
70
Issue
11-12
Year of publication
1993
Pages
967 - 972
Database
ISI
SICI code
0019-4522(1993)70:11-12<967:TEPIZO>2.0.ZU;2-G
Abstract
Zinc forms two types of complexes with o-vanillin salicyloylhydrazone. The H-1 and C-13 nmr studies suggest that it coordinates with azometh ine nitrogen, the carbonyl oxygen and with one or both of the phenolic oxygens. The H-1-H-1 and H-1 decoupled C-13-C-13 two-dimensional nucl ear Overhauser and exchange spectra show that there is an exchange bet ween the two types of complexes.