Abstract
A series of novel 1,3-alternate calix[4]-mono-thiacrown and -bis-thiacrowns were synthesized within good yields. The three dimensional 1,3-alternate conformation was confirmed by X-ray crystal structure. From the results of two phase extraction and NMR studies on the ligand-metal complex, one can conclude that the calix[4]thiacrown ethers showed the very high selectivity for silver ion over other metal ions by an electrostatic interaction between sulfur atom and silver ion and by a π-metal complexation.
| Original language | English |
|---|---|
| Pages (from-to) | 879-883 |
| Number of pages | 5 |
| Journal | Bulletin of the Korean Chemical Society |
| Volume | 23 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2002 Jun 20 |
| Externally published | Yes |
Keywords
- Calix[4]-bis-thiacrown
- Calix[4]thiacrown ether
- Complexation
- Picrate extraction
ASJC Scopus subject areas
- Chemistry(all)