New Sensitizer-Modified Calix[4]arenes Enabling Near-UV Excitation of Complexed Luminescent Lanthanide Ions

The synthesis is described of a series of calix[4]arenes with three different sensitizer chromophores (''antenna'') attached to the lower rim via a short spacer. In the Eu3+ and Tb3+ complexes of these calixarenes, photoexcitation of the antenna can induce lanthanide emission via...

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Bibliographic Details
Published inJournal of the American Chemical Society Vol. 117; no. 37; pp. 9408 - 9414
Main Authors Steemers, Frank J, Verboom, Willem, Reinhoudt, David N, van der Tol, Erik B, Verhoeven, Jan W
Format Journal Article
LanguageEnglish
Published WASHINGTON American Chemical Society 01.09.1995
Amer Chemical Soc
Subjects
Chemistry
Chemistry, Multidisciplinary
Physical Sciences
Science & Technology
CRYSTAL-STRUCTURES
ENERGY-TRANSFER
INHIBITION
RECEPTORS
SELECTIVE MONOHYDROLYSIS
ESTERS
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Summary:The synthesis is described of a series of calix[4]arenes with three different sensitizer chromophores (''antenna'') attached to the lower rim via a short spacer. In the Eu3+ and Tb3+ complexes of these calixarenes, photoexcitation of the antenna can induce lanthanide emission via intramolecular energy transfer. Although the higher energy of the Tb3+ luminescent state makes it more difficult to sensitize than in the case of Eu3+, especially a triphenylene antenna is found to have strong sensitizing ability toward not only Eu3+ but also Tb3+, allowing excitation of the lanthanide with wavelengths extending to 350 nm.
Bibliography:ark:/67375/TPS-MQVX0602-N
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ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0002-7863
1520-5126
DOI:10.1021/ja00142a004