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13C, 15N CP-MAS, FT–IR and PM5 studies of some Schiff bases of gossypol in solid

✍ Scribed by Piotr Przybylski; Wojciech Schilf; Bohdan Kamieński; Bogumil Brzezinski; Franz Bartl

Publisher
Elsevier Science
Year
2005
Tongue
English
Weight
254 KB
Volume
748
Category
Article
ISSN
0022-2860

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The 15N and 13C solid state NMR study of
The 15N and 13C solid state NMR study of intramolecular hydrogen bond in some Schiff bases
✍ W Schilf; B Kamieński; A Szady-Chełmieniecka; E Grech 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 88 KB

In present work set of eight Schiff bases derived from substituted salicylaldehydes and aliphatic and aromatic amines has been studied in the solid state by 15 N and 13 C CPMAS NMR methods. 15 N CPMAS NMR measurement is especially useful for investigation of the tautomerism in the compounds consider

CP/MAS spectroscopy in the determination
CP/MAS spectroscopy in the determination of the tautomeric forms of gossypol, its Schiff bases and hydrazones in the solid state
✍ Piotr Przybylski; Wojciech Schilf; Bohdan Kamienski; Bogumil Brzezinski; Franz B 📂 Article 📅 2008 🏛 John Wiley and Sons 🌐 English ⚖ 328 KB

## Abstract New Schiff bases and new hydrazones were synthesized and studied by ^13^C and ^15^N CP/MAS spectroscopy and by ^1^H^1^H COSY, ^1^H^13^C HMBC, ^1^H^13^C HSQC, ^1^H^15^N HMQC and ^1^H^15^N HSQC correlations. The CP/MAS investigation of gossypol has demonstrated that in the solid stat