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  • 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. (en)
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 (en)
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 (en)
skos:notation
  • RIV/00216208:11310/09:10000080!RIV10-MSM-11310___
http://linked.open...avai/riv/aktivita
http://linked.open...avai/riv/aktivity
  • V
http://linked.open...iv/cisloPeriodika
  • 43
http://linked.open...vai/riv/dodaniDat
http://linked.open...aciTvurceVysledku
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http://linked.open...iv/duvernostUdaju
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http://linked.open...dnocenehoVysledku
  • 338823
http://linked.open...ai/riv/idVysledku
  • RIV/00216208:11310/09:10000080
http://linked.open...riv/jazykVysledku
http://linked.open.../riv/klicovaSlova
  • Pyridyl ligand; lanthanide complexes; MRI agents; luminiscence; relaxometry (en)
http://linked.open.../riv/klicoveSlovo
http://linked.open...odStatuVydavatele
  • GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV
  • [1B9A7F030B78]
http://linked.open...i/riv/nazevZdroje
  • Dalton Transactions
http://linked.open...in/vavai/riv/obor
http://linked.open...ichTvurcuVysledku
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http://linked.open...UplatneniVysledku
http://linked.open...v/svazekPeriodika
  • Neuveden
http://linked.open...iv/tvurceVysledku
  • Kubíček, Vojtěch
  • Tóth, Éva
  • Kubíčková, Anna
  • Charbonniere, Lo?c
  • Mameri, Samir
  • Maribé, Laurence
  • Ziessel, Raymond
http://linked.open...ain/vavai/riv/wos
  • 000271162300016
issn
  • 1477-9226
number of pages
http://localhost/t...ganizacniJednotka
  • 11310
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