Relaxation and luminescence studies on hydrated bipyridyl- and terpyridyl-based lanthanide complexes

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F09%3A10000080" target="_blank" >RIV/00216208:11310/09:10000080 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Relaxation and luminescence studies on hydrated bipyridyl- and terpyridyl-based lanthanide complexes

Original language 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.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CF - Physical chemistry and theoretical chemistry

OECD FORD branch

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Project

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Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2009

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Dalton Transactions

ISSN

1477-9226

e-ISSN

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Volume of the periodical

Neuveden

Issue of the periodical within the volume

43

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

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UT code for WoS article

000271162300016

EID of the result in the Scopus database

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