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Spectroscopic studies and PM5 semiempirical calculations of new hydrazone of gossypol with 3,6,9-trioxadecylhydrazine

✍ Scribed by Grzegorz Bejcar; Piotr Przybylski; Monika Walkowiak; Bogumil Brzezinski

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
287 KB
Volume
830
Category
Article
ISSN
0022-2860

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✦ Synopsis

A new hydrazone of gossypol with 3,6,9-trioxadecylhydrazine (GHTO) has been synthesised and its structure has been studied by 1 H NMR, 13 C NMR, FT-IR spectroscopy and PM5 semiempirical methods. The results have shown that the newly synthesised hydrazone exists in solution in the N-imine-N-imine tautomeric form, stabilized by several intramolecular hydrogen bonds among which the O 7 H Á Á Á N 16 intramolecular hydrogen bond is the strongest. The structure of GHTO is visualized by the PM5 semiempirical calculations.

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✍ Grzegorz Bejcar; Piotr Przybylski; Joanna Fusiara; Bogumil Brzezinski; Franz Bar πŸ“‚ Article πŸ“… 2005 πŸ› Elsevier Science 🌐 English βš– 193 KB

A new hydrazone of gossypol with 2,2 0 -diethoxyethyl hydrazine (GHOE) has been synthesised and its structure has been studied by FT-IR, 1 H NMR, 13 C NMR as well as PM5 semiempirical methods. All the studies provide clear evidence of the existence of the GHOE in the solution in the N-imine-N-imine