Abstract
The selective extraction of uranium from sea water has attracted extensive attention because of its urgency in relation to energy problems. In order to design a ligand that can selectively bind uranyl ion (UO**2** plus //2), one has to overcome a difficult problem: i. e. , the ligand must strictly discriminate UO**2** plus //2 from other metal ions present in great excess in sea water. As a unique strategy to solve this difficult problem, we recently synthesized calix left bracket 6 right bracket arene derivatives. In general, UO**2** plus //2 complexes adopt either a pseudoplanar pentacoordinate or hexacoordinate structure which is quite different from the coordination structures of other metal ions. We thus expected that compounds 1 which have a cavity preorganized for the hexacoordinate structure would bind UO**2** plus //2 selectively. We found that compounds 1 have remarkably high stability constants and selectivity factors for UO**2** plus //2. 17 Refs.
| Original language | English |
|---|---|
| Pages (from-to) | 391-396 |
| Number of pages | 6 |
| Journal | Journal of polymer science. Part C, Polymer letters |
| Volume | 26 |
| Issue number | 9 |
| Publication status | Published - Jan 1 1988 |
| Externally published | Yes |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Engineering(all)
Cite this
SELECTIVE ADSORPTION OF UO//2**2** plus TO A POLYMER RESIN IMMOBILIZING CALIXARENE-BASED URANOPHILES. / Shinkai, Seiji; Kawaguchi, Hirofumi; Manabe, Osamu.
In: Journal of polymer science. Part C, Polymer letters, Vol. 26, No. 9, 01.01.1988, p. 391-396.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - SELECTIVE ADSORPTION OF UO//2**2** plus TO A POLYMER RESIN IMMOBILIZING CALIXARENE-BASED URANOPHILES.
AU - Shinkai, Seiji
AU - Kawaguchi, Hirofumi
AU - Manabe, Osamu
PY - 1988/1/1
Y1 - 1988/1/1
N2 - The selective extraction of uranium from sea water has attracted extensive attention because of its urgency in relation to energy problems. In order to design a ligand that can selectively bind uranyl ion (UO**2** plus //2), one has to overcome a difficult problem: i. e. , the ligand must strictly discriminate UO**2** plus //2 from other metal ions present in great excess in sea water. As a unique strategy to solve this difficult problem, we recently synthesized calix left bracket 6 right bracket arene derivatives. In general, UO**2** plus //2 complexes adopt either a pseudoplanar pentacoordinate or hexacoordinate structure which is quite different from the coordination structures of other metal ions. We thus expected that compounds 1 which have a cavity preorganized for the hexacoordinate structure would bind UO**2** plus //2 selectively. We found that compounds 1 have remarkably high stability constants and selectivity factors for UO**2** plus //2. 17 Refs.
AB - The selective extraction of uranium from sea water has attracted extensive attention because of its urgency in relation to energy problems. In order to design a ligand that can selectively bind uranyl ion (UO**2** plus //2), one has to overcome a difficult problem: i. e. , the ligand must strictly discriminate UO**2** plus //2 from other metal ions present in great excess in sea water. As a unique strategy to solve this difficult problem, we recently synthesized calix left bracket 6 right bracket arene derivatives. In general, UO**2** plus //2 complexes adopt either a pseudoplanar pentacoordinate or hexacoordinate structure which is quite different from the coordination structures of other metal ions. We thus expected that compounds 1 which have a cavity preorganized for the hexacoordinate structure would bind UO**2** plus //2 selectively. We found that compounds 1 have remarkably high stability constants and selectivity factors for UO**2** plus //2. 17 Refs.
UR - http://www.scopus.com/inward/record.url?scp=0024065702&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024065702&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0024065702
VL - 26
SP - 391
EP - 396
JO - Journal of Polymer Science, Part B: Polymer Physics
JF - Journal of Polymer Science, Part B: Polymer Physics
SN - 0887-6266
IS - 9
ER -