SYNTHESES OF PHOSPHATE DIESTERS HAVING P-TERT-BUTYLCALIX[4]ARENE AND ALKYL GROUP AS ESTER MOIETIES, AND THEIR SELECTIVE LITHIUM CATION-TRANSPORT ABILITIES THROUGH LIQUID MEMBRANES

Citation
S. Akabori et al., SYNTHESES OF PHOSPHATE DIESTERS HAVING P-TERT-BUTYLCALIX[4]ARENE AND ALKYL GROUP AS ESTER MOIETIES, AND THEIR SELECTIVE LITHIUM CATION-TRANSPORT ABILITIES THROUGH LIQUID MEMBRANES, Chemical communications, (22), 1997, pp. 2137-2138
Citations number
19
Categorie Soggetti
Chemistry
Journal title
ISSN journal
13597345
Issue
22
Year of publication
1997
Pages
2137 - 2138
Database
ISI
SICI code
1359-7345(1997):22<2137:SOPDHP>2.0.ZU;2-5
Abstract
Phospate diesters, 2a, 2b and 2c, having p-tert-butyicalix-[4]arenes a nd alkyl-groups as ester moieties exist as an equilibrium of cone and partial-cone conformations in solution and selectively transport Li+; however, the conformations of the calix[4]arene moieties in the Li and Na complexes of 2a as the methyl ester and/or 2b as the ethyl ester i n solution are cone only, although that of the K complex exists as a m ixture of cone and partial-cone conformers.