Research output: Contribution to journal › Article › peer-review
Extraction of americium and europium by CMPO-substituted adamantylcalixarenes. / Babain, V. A.; Alyapyshev, M. Yu; Karavan, M. D.; Böhmer, V.; Wang, L.; Shokova, E. A.; Motornaya, A. E.; Vatsouro, I. M.; Kovalev, V. V.
In: Radiochimica Acta, Vol. 93, No. 12, 27.12.2005, p. 749-756.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Extraction of americium and europium by CMPO-substituted adamantylcalixarenes
AU - Babain, V. A.
AU - Alyapyshev, M. Yu
AU - Karavan, M. D.
AU - Böhmer, V.
AU - Wang, L.
AU - Shokova, E. A.
AU - Motornaya, A. E.
AU - Vatsouro, I. M.
AU - Kovalev, V. V.
PY - 2005/12/27
Y1 - 2005/12/27
N2 - Eight p-adamantylcalix[4]arene derivatives, bearing four CMPO-like functions [-(CH2)n-NH-C(O)-CH2-P(O)Ph 2] at the wide (4a,b, n = 0, 1) or narrow (5a-c and 6a-c, n = 2-4) rims were synthesized for the first time. Studies of the extraction of americium(III) and europium(III) from 3 M HNO3 solutions to organic phases (dichloromethane, m-nitro-trifluoromethylbenzene) showed: (i) The extraction ability for all the adamantylcalixarene ligands is much better than for their monomeric analogues -N-(1-adamantyl)-, N-(1-adamantylmethyl)- and N,N-(dibutyl)carbamoylmethyldiphenylphosphine oxides 7a, 7b, 8; (ii) The extraction percentage increases strongly with increasing length of the spacer for all types of ligands 4-6, and best extraction results were found for 4b (n = 1) and 5c (n = 4); (iii) The separation coefficient DAm/D Eu for the investigated compounds did not exceed 2, which is close to the narrow rim CMPO calixarenes, studied earlier; (iv) Variation of the spacer length between CMPO groups attached to the 1,3- and 2,4-positions of the calixarene platform in 6 did not lead to appreciably improved extractants, neither with respect to the extraction abilities (D) nor to the selectivities (DAm/DEu). © by Oldenbourg Wissenschaftsverlag.
AB - Eight p-adamantylcalix[4]arene derivatives, bearing four CMPO-like functions [-(CH2)n-NH-C(O)-CH2-P(O)Ph 2] at the wide (4a,b, n = 0, 1) or narrow (5a-c and 6a-c, n = 2-4) rims were synthesized for the first time. Studies of the extraction of americium(III) and europium(III) from 3 M HNO3 solutions to organic phases (dichloromethane, m-nitro-trifluoromethylbenzene) showed: (i) The extraction ability for all the adamantylcalixarene ligands is much better than for their monomeric analogues -N-(1-adamantyl)-, N-(1-adamantylmethyl)- and N,N-(dibutyl)carbamoylmethyldiphenylphosphine oxides 7a, 7b, 8; (ii) The extraction percentage increases strongly with increasing length of the spacer for all types of ligands 4-6, and best extraction results were found for 4b (n = 1) and 5c (n = 4); (iii) The separation coefficient DAm/D Eu for the investigated compounds did not exceed 2, which is close to the narrow rim CMPO calixarenes, studied earlier; (iv) Variation of the spacer length between CMPO groups attached to the 1,3- and 2,4-positions of the calixarene platform in 6 did not lead to appreciably improved extractants, neither with respect to the extraction abilities (D) nor to the selectivities (DAm/DEu). © by Oldenbourg Wissenschaftsverlag.
KW - Actinides
KW - Adamantylcalixarenes
KW - CMPO ligands
KW - Lanthanides
KW - Solvent extraction
UR - http://www.scopus.com/inward/record.url?scp=29144535021&partnerID=8YFLogxK
U2 - 10.1524/ract.2005.93.12.749
DO - 10.1524/ract.2005.93.12.749
M3 - Article
AN - SCOPUS:29144535021
VL - 93
SP - 749
EP - 756
JO - Radiochimica Acta
JF - Radiochimica Acta
SN - 0033-8230
IS - 12
ER -
ID: 114019768