Synthesis, characterisation and extraction behaviour of calix[4]arene-based phosponic acids

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F02%3A00006329" target="_blank" >RIV/00216224:14310/02:00006329 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Synthesis, characterisation and extraction behaviour of calix[4]arene-based phosponic acids

Original language description

Three new bis(phosponic) acids were prepared by derivatization of p-tert-butylcalix[4]arene on the lower rim by -(CH2)x-PO3H2 groups and were fully characterized by NMR spectroscopy; some of them were further investigated by X-ray analysis. The compoundsobtained were tested as extractants for La3+, Eu3+, Yb3+ and Th4+ in 0.1 - 1 M HNO3. Structural details of the complex HLn(H2L1)2 where Ln = Y, La, Eu were elucidated by NMR techniques in solution. The extraction efficiencies decrease with increasing length of the CH2 spacer; the dependence is not monotonic, and an extraordinary selectivity was observed for Yb. The extraction efficiency of Ln3+ for all of the ligands studied increased significantly with decreasing ionic radius.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CB - Analytical chemistry, separation

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2002

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of the chemical society. Perkin transactions II, Physical organic chemistry

ISSN

1472-779X

e-ISSN

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Volume of the periodical

2002

Issue of the periodical within the volume

7

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

1370

UT code for WoS article

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EID of the result in the Scopus database

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