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Lower rim substituted p-tert-butylcalix[4]arene; Part 14. Synthesis, structures and binding studies of calix[4]arene thioamides
Abstract
A number of p-tert-butylcalix[4]arene thioamides were synthesized and characterized by 1H-NMR and elemental analysis. Compounds 1-5 are O-substituted derivatives with -CH2-C(=S)-N-X groups, where NX = morpholidyl, NEt2, NHC2H4Ph, NHCH2Ph and NHEt,respectively. The X-ray structures of the ligands 1, 3, 5 and of the complex 3Pb(ClO4)2, (compound 6), are presented and their slightly distorted cone conformation is established. The influence of the nature of the thioamide functions(secondary or tertiary) on the extractability of some selected metal cations was investigated. Whereas all thesecalixarenes show the highest extraction level for Ag+, tertiary thioamides are more efficient extractants for Pb2+ than secondary thioamides.
Authors (5)
-
Francoise Arnaud-Neu
-
Veronique Hubscher-Bruder
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- Category:
- Articles
- Type:
- artykuł w czasopiśmie wyróżnionym w JCR
- Published in:
-
Journal of Inclusion Phenomena and Macrocyclic Chemistry
no. 68,
pages 75 - 83,
ISSN: 1388-3127 - Language:
- English
- Publication year:
- 2010
- Bibliographic description:
- Bocheńska M., Kulesza J., Chojnacki J., Arnaud-Neu F., Hubscher-Bruder V.: Lower rim substituted p-tert-butylcalix[4]arene; Part 14. Synthesis, structures and binding studies of calix[4]arene thioamides// JOURNAL OF INCLUSION PHENOMENA AND MACROCYCLIC CHEMISTRY. -Vol. 68, nr. iss.1-2 (2010), s.75-83
- Verified by:
- Gdańsk University of Technology
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