Issue 1, 1995
From the journal:

Journal of the Chemical Society, Perkin Transactions 2

Calix[4]arene-triacids as receptors for lanthanides; synthesis and luminescence of neutral Eu3+ and Tb3+ complexes

Dmitry M. Rudkevich,   Willem Verboom,   Erik van der Tol,   Catherina J. van Staveren,   Frans M. Kaspersen,   Jan W. Verhoeven  and  David N. Reinhoudt  

Abstract

Calix[4]arene triacids (3a–d) have been prepared that are able to form neutral complexes with lanthanides. Complexes of 3a–d with Eu3+ and Tb3+ have been studied with respect to their luminescent properties in a protic solvent (methanol). In all cases it was found that the luminescent lifetime of the complexed lanthanide ions is significantly enhanced compared with that of the free ions in the same solvent. Solvent deuterium isotope effects confirm that shielding of the lanthanide ion from the solvent in the calixarene complexes is the main mechanism responsible for the lifetime difference between free and complexed ions, however, the calixarene itself also exerts a moderate lifetime-shortening effect. Excitation spectra show that in the complexes efficient energy transfer to the lanthanide ions occurs both from the calixarene aromatic moieties as well as from aromatic (pyridine) chromophores attached to it.

About
Cited by
Related
Download options Please wait...

Article information

DOI
https://doi.org/10.1039/P29950000131
Article type
Paper

J. Chem. Soc., Perkin Trans. 2, 1995, 131-134

Permissions

Request permissions

Calix[4]arene-triacids as receptors for lanthanides; synthesis and luminescence of neutral Eu3+ and Tb3+ complexes

D. M. Rudkevich, W. Verboom, E. van der Tol, C. J. van Staveren, F. M. Kaspersen, J. W. Verhoeven and D. N. Reinhoudt, J. Chem. Soc., Perkin Trans. 2, 1995, 131 DOI: 10.1039/P29950000131

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Spotlight

Advertisements