EXAFS STUDIES ON THE INTERACTION BETWEEN EU3-ETHERS IN ORGANIC-SOLVENTS( AND CROWN)

Citation
A. Ishida et al., EXAFS STUDIES ON THE INTERACTION BETWEEN EU3-ETHERS IN ORGANIC-SOLVENTS( AND CROWN), Physica. B, Condensed matter, 209(1-4), 1995, pp. 711-713
Citations number
2
Categorie Soggetti
Physics, Condensed Matter
ISSN journal
09214526
Volume
209
Issue
1-4
Year of publication
1995
Pages
711 - 713
Database
ISI
SICI code
0921-4526(1995)209:1-4<711:ESOTIB>2.0.ZU;2-H
Abstract
Coordination environments of EU(3+) in a solution were studied by use of XAFS. An acetonitrile solution of europium(III) perchlorate gave a strong peak at 0.25 nm, which suggests strong coordination of the coun ter perchlorate ion to Eu3+. Upon addition of 18-crown-6 ether, a new peak appears at 0.35 nm assigned to a coordination of the oxygen atom of the crown. The efficiency of a crown complexation depended on the c haracter of the counter anion and on the cavity size of the crown.