Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 7840-7847 |
| Number of pages | 7 |
| Journal | Tetrahedron |
| Volume | 68 |
| Issue number | 38 |
| DOIs | |
| Publication status | Published - 2012 |
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Keywords
- METIS-293807
- IR-85052
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Preorganization of diglycolamides on the calix(4)arene platform and its effect on the extraction of Am(III)/Eu(III). / Iqbal, M.; Mohapatra, P.K.; Ansari, S.A.; Huskens, Jurriaan; Verboom, Willem.
In: Tetrahedron, Vol. 68, No. 38, 2012, p. 7840-7847.Research output: Contribution to journal › Article › Academic › peer-review
TY - JOUR
T1 - Preorganization of diglycolamides on the calix(4)arene platform and its effect on the extraction of Am(III)/Eu(III)
AU - Iqbal, M.
AU - Mohapatra, P.K.
AU - Ansari, S.A.
AU - Huskens, Jurriaan
AU - Verboom, Willem
PY - 2012
Y1 - 2012
N2 - Different diglycolamide (DGA)-substituted calix[4]arene-based extractants were synthesized and evaluated for the extraction of Am(III) and Eu(III), representative trivalent actinide and lanthanide ions, respectively. On the narrow rim of the calix[4]arene platform, the DGA moiety was either 1,3-di- or tetrasubstituted with a varying spacer length between the oxygen and amide nitrogen atom. In addition, DGA groups were appended both to the wide rim and to both rims of calix[4]arenes and their efficiencies were compared for Am(III) and Eu(III) extraction at three different feed acidities. The extraction and separation efficiencies strongly depended on the N-alkyl substituent as well as the spacer length. 1,3-Di-DGA-substituted calix[4]arenes are inferior extractants to the corresponding tetra-DGA-substituted ones. Narrow rim DGA-functionalized derivatives resulted in high extraction efficiencies, while the wide rim DGA-functionalized calix[4]arenes showed practically no extraction
AB - Different diglycolamide (DGA)-substituted calix[4]arene-based extractants were synthesized and evaluated for the extraction of Am(III) and Eu(III), representative trivalent actinide and lanthanide ions, respectively. On the narrow rim of the calix[4]arene platform, the DGA moiety was either 1,3-di- or tetrasubstituted with a varying spacer length between the oxygen and amide nitrogen atom. In addition, DGA groups were appended both to the wide rim and to both rims of calix[4]arenes and their efficiencies were compared for Am(III) and Eu(III) extraction at three different feed acidities. The extraction and separation efficiencies strongly depended on the N-alkyl substituent as well as the spacer length. 1,3-Di-DGA-substituted calix[4]arenes are inferior extractants to the corresponding tetra-DGA-substituted ones. Narrow rim DGA-functionalized derivatives resulted in high extraction efficiencies, while the wide rim DGA-functionalized calix[4]arenes showed practically no extraction
KW - METIS-293807
KW - IR-85052
U2 - 10.1016/j.tet.2012.07.036
DO - 10.1016/j.tet.2012.07.036
M3 - Article
VL - 68
SP - 7840
EP - 7847
JO - Tetrahedron
JF - Tetrahedron
SN - 0040-4020
IS - 38
ER -