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Statements

Subject Item
n2:RIV%2F00216208%3A11310%2F09%3A10000080%21RIV10-MSM-11310___
rdf:type
n13:Vysledek skos:Concept
dcterms:description
The synthesis of the novel ligand, based on a 2,2?-bipyridine functionalized by a carboxylate function and a methyleneiminodiacetate group is described. Its europium complex has been prepared and characterized. The spectroscopic properties were studied by means of absorption and luminescence spectroscopy. Although the complex displays a very good sensitization efficiency, the overall luminescence quantum yield is rather poor. This results from strong non-radiative deactivations due to the presence of three water molecules in the first coordination sphere. The relaxation properties of the Gd3+ complexes obtained with two ligands, the latter containing an additional pyridine ring in the aromatic core, were assessed by means of 17O NMR and 1H NMRD. The water exchange rates are faster than those of currently used contrast agents. The rotational correlation time appeared to be long, pointing to a hindered rotation due to the larger aromatic frame. The synthesis of the novel ligand, based on a 2,2?-bipyridine functionalized by a carboxylate function and a methyleneiminodiacetate group is described. Its europium complex has been prepared and characterized. The spectroscopic properties were studied by means of absorption and luminescence spectroscopy. Although the complex displays a very good sensitization efficiency, the overall luminescence quantum yield is rather poor. This results from strong non-radiative deactivations due to the presence of three water molecules in the first coordination sphere. The relaxation properties of the Gd3+ complexes obtained with two ligands, the latter containing an additional pyridine ring in the aromatic core, were assessed by means of 17O NMR and 1H NMRD. The water exchange rates are faster than those of currently used contrast agents. The rotational correlation time appeared to be long, pointing to a hindered rotation due to the larger aromatic frame.
dcterms:title
Relaxation and luminescence studies on hydrated bipyridyl- and terpyridyl-based lanthanide complexes Relaxation and luminescence studies on hydrated bipyridyl- and terpyridyl-based lanthanide complexes
skos:prefLabel
Relaxation and luminescence studies on hydrated bipyridyl- and terpyridyl-based lanthanide complexes Relaxation and luminescence studies on hydrated bipyridyl- and terpyridyl-based lanthanide complexes
skos:notation
RIV/00216208:11310/09:10000080!RIV10-MSM-11310___
n4:aktivita
n11:V
n4:aktivity
V
n4:cisloPeriodika
43
n4:dodaniDat
n8:2010
n4:domaciTvurceVysledku
n9:9695656 n9:1015133
n4:druhVysledku
n7:J
n4:duvernostUdaju
n10:S
n4:entitaPredkladatele
n16:predkladatel
n4:idSjednocenehoVysledku
338823
n4:idVysledku
RIV/00216208:11310/09:10000080
n4:jazykVysledku
n14:eng
n4:klicovaSlova
Pyridyl ligand; lanthanide complexes; MRI agents; luminiscence; relaxometry
n4:klicoveSlovo
n5:MRI%20agents n5:luminiscence n5:Pyridyl%20ligand n5:relaxometry n5:lanthanide%20complexes
n4:kodStatuVydavatele
GB - Spojené království Velké Británie a Severního Irska
n4:kontrolniKodProRIV
[1B9A7F030B78]
n4:nazevZdroje
Dalton Transactions
n4:obor
n15:CF
n4:pocetDomacichTvurcuVysledku
2
n4:pocetTvurcuVysledku
7
n4:rokUplatneniVysledku
n8:2009
n4:svazekPeriodika
Neuveden
n4:tvurceVysledku
Ziessel, Raymond Maribé, Laurence Charbonniere, Lo?c Mameri, Samir Kubíček, Vojtěch Kubíčková, Anna Tóth, Éva
n4:wos
000271162300016
s:issn
1477-9226
s:numberOfPages
9
n17:organizacniJednotka
11310