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
- prof. dr hab. inż. Maria Bocheńska link open in new tab ,
- Joanna Kulesza link open in new tab ,
- prof. dr hab. inż. Jarosław Chojnacki link open in new tab ,
- Francoise Arnaud-Neu,
- Veronique Hubscher-Bruder
Additional information
- Category
- Publikacja w czasopiśmie
- Type
- artykuł w czasopiśmie wyróżnionym w JCR
- Language
- angielski
- Publication year
- 2010
