About: Synthesis, characterization and extraction behaviour of calix[4]arene with four propylene phosphonic acid groups on the lower rim

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About: Synthesis, characterization and extraction behaviour of calix[4]arene with four propylene phosphonic acid groups on the lower rim Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	A new calix[4]arene based ligand bearing four phosphonic acid groups was prepared by modification of p-tert-butylcalix[4]arene on the lower rim by bonding with four (CH2)3PO(OH)2 groups. The compound was characterized by NMR spectroscopy. The compound obtained was used as an extractant for certain lanthanide ions (La3+, Eu3+, Yb3+). The extraction experiments were carried out at 25 +/- 2 oC and pH 5.5 for 2 h. The formation of the complexes with lanthanide ions was revealed by NMR experiments and luminescence spectroscopy. The extraction efficiencies of the prepared ligand decrease with decreasing radius of the lanthanide ions. A new calix[4]arene based ligand bearing four phosphonic acid groups was prepared by modification of p-tert-butylcalix[4]arene on the lower rim by bonding with four (CH2)3PO(OH)2 groups. The compound was characterized by NMR spectroscopy. The compound obtained was used as an extractant for certain lanthanide ions (La3+, Eu3+, Yb3+). The extraction experiments were carried out at 25 +/- 2 oC and pH 5.5 for 2 h. The formation of the complexes with lanthanide ions was revealed by NMR experiments and luminescence spectroscopy. The extraction efficiencies of the prepared ligand decrease with decreasing radius of the lanthanide ions. (en) Calix[4]aren nesoucí čtyři propylenfosfonátové skupiny byl připraven substitucí p-tert-butylcalix[4]arenu na dolním kruhu čtyřmi (CH2)3PO(OH)2 skupinami. Látka byla charakterizována NMR spektroskopií. Pro vybrané lanthanoidy (La3+, Eu3+, Yb3+) byly provedeny extrakční experimenty. Extrakční experimenty byly prováděny při teplotě 25 +/-2 oC a pH 5,5 po dobu 2 hodin. Tvorba komplexů ligandu s ionty lanthanoidů byla potvrzena NMR experimenty a luminiscenční spektroskopií. Účinnost extrakce připraveného ligandu klesala s klesajícím poloměrem iontu lanthanoidu. (cs)
Title	Synthesis, characterization and extraction behaviour of calix[4]arene with four propylene phosphonic acid groups on the lower rim Syntéza, chatakterizace a extrakční chování calix[4]arenu se čtyřmi propylenfosfonátovými skupinami na dolním kruhu (cs) Synthesis, characterization and extraction behaviour of calix[4]arene with four propylene phosphonic acid groups on the lower rim (en)
skos:prefLabel	Synthesis, characterization and extraction behaviour of calix[4]arene with four propylene phosphonic acid groups on the lower rim Syntéza, chatakterizace a extrakční chování calix[4]arenu se čtyřmi propylenfosfonátovými skupinami na dolním kruhu (cs) Synthesis, characterization and extraction behaviour of calix[4]arene with four propylene phosphonic acid groups on the lower rim (en)
skos:notation	RIV/61388955:_____/05:00092929!RIV08-AV0-61388955
http://linked.open.../vavai/riv/strany	311;317
http://linked.open...avai/riv/aktivita	Z
http://linked.open...avai/riv/aktivity	Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	2
http://linked.open...vai/riv/dodaniDat	2008
http://linked.open...aciTvurceVysledku	Matulková, Irena
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	545730
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/05:00092929
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	calixarenes; extraction efficiences; lanthanide ions; NMR spectroscopy (en)
http://linked.open.../riv/klicoveSlovo	NMR spectroscopy lanthanide ions calixarenes extraction efficiences
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[7868202BBABC]
http://linked.open...i/riv/nazevZdroje	Polyhedron
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	1 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...UplatneniVysledku	2005
http://linked.open...v/svazekPeriodika	24
http://linked.open...iv/tvurceVysledku	Matulková, Irena Rohovec, J.
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	0277-5387
number of pages	7 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Synthesis, characterization and extraction behaviour of calix[4]arene with four propylene phosphonic acid groups on the lower rim

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