J 2002

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

JUREČKA, Petr, Pavel VOJTÍŠEK, Karel NOVOTNÝ, Jan ROHOVEC, Ivan LUKEŠ et. al.

Basic information

Original name

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

Authors

JUREČKA, Petr (203 Czech Republic, guarantor), Pavel VOJTÍŠEK (203 Czech Republic), Karel NOVOTNÝ (203 Czech Republic), Jan ROHOVEC (203 Czech Republic) and Ivan LUKEŠ (203 Czech Republic)

Edition

Journal of the chemical society. Perkin transactions II, Physical organic chemistry, London, Chemical society, 2002, 1472-779X

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10406 Analytical chemistry

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 1.911

RIV identification code

RIV/00216224:14310/02:00006329

Organization unit

Faculty of Science

UT WoS

000176467400025

Keywords in English

synthesis; extraction agent; calix[4]arene
Změněno: 11/8/2009 14:38, doc. Mgr. Karel Novotný, Ph.D.

Abstract

V originále

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 compounds obtained 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.

Links

MSM 143100003, plan (intention)
Name: Studium plazmochemických reakcí v neizotermickém nízkoteplotním plazmatu a jeho interakcí s povrchem pevných látek
Investor: Ministry of Education, Youth and Sports of the CR, Study of plasmachemical reactions in non-isothermic low pressure plasma and its interaction with the surface of solid substrates