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CMP(O) tripodands: synthesis, potentiometric studies and extractions
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SYSNO ASEP 0050857 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Ostatní články Title CMP(O) tripodands: synthesis, potentiometric studies and extractions Title CMPO tripodální ligandy,potenciometrické studium a extrakční vlastnosti Author(s) Reinoso-García, M.M. (NL)
Janczewski, D. (NL)
Reinhoudt, D.N. (NL)
Verboom, W. (NL)
Malinowska, E. (PL)
Pietrzak, M. (PL)
Hill, C. (FR)
Báča, Jiří (UACH-T)
Grüner, Bohumír (UACH-T) RID, SAI, ORCID
Selucký, P. (CZ)
Grűttner, C. (DE)Source Title New Journal of Chemistry. - : Royal Society of Chemistry - ISSN 1144-0546
Roč. 30, č. 10 (2006), s. 1480-1492Number of pages 11 s. Language eng - English Country GB - United Kingdom Keywords assisted chemical-separation ; complex-formation constants ; solvent-extraction Subject RIV CA - Inorganic Chemistry CEZ AV0Z40320502 - UACH-T (2005-2011) Annotation Ligand systems containing three carbamoylmethylphosphonate (CMP) or - phosphine oxide (CMPO) moieties attached to a tripodal platform have been synthesized for metal complexation and subsequent extraction from HNO3 solutions. The incorporation into ion selective electrodes (ISE) and picrate extractions with Na+, K+, Ag+, Ca2+, Cd2+, Hg2+, Pb2+, Cu2+, Eu3+ and Fe3+ shows that CMPO tripodand 3 is very selective for Eu3+ and forms a very stable complex (log beta(ML) = 28.3). Liquid - liquid extractions performed with Eu3+ and Am3+ show reasonable extraction properties of the CMP(O) tripodands 3, 11 and 13 in 1,1,2,2-tetrachloroethane, while in 1-octanol for all tripodands studied the distribution coefficients are low. Upon addition of the synergistic agent hexabrominated cobalt bis(dicarbollide) anion (bromo-COSAN) the distribution coefficients for Am3+ and Eu3+ extraction increase considerably for CMP(O) tripodands 3 and 4. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2007
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