Issue 14, 2007
From the journal:

Organic & Biomolecular Chemistry

Synthesis of asymmetrically substituted cyclen-based ligands for the controlled sensitisation of lanthanides†

K. Eszter Borbas‡a  and  James I. Bruce*a  

* Corresponding authors

a The Department of Chemistry, The Open University, Walton Hall, Milton Keynes, UK
E-mail: j.i.bruce@open.ac.uk
Fax: +44(0)1908 858327
Tel: +44 (0)1908 654171

Abstract

A series of unsymmetrical cyclen-based ligands incorporating an antenna and a quencher have been prepared for the complexation of the visible- (Eu, Tb) and near IR-emitting (Nd, Yb) lanthanides. Eu and Tb were sensitised with coumarin 2, and Nd and Yb with rhodamine. Both antennae were paired with nucleoside (uridine and adenosine) quenchers. The interaction between the quencher and the antenna can be regulated by the addition of the complementary base or DNA to the complexes, resulting in changes in the lanthanide luminescence intensity and lifetime.

Graphical abstract: Synthesis of asymmetrically substituted cyclen-based ligands for the controlled sensitisation of lanthanides

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Article information

DOI
https://doi.org/10.1039/B705757A
Article type
Paper
Submitted
16 Apr 2007
Accepted
23 May 2007
First published
11 Jun 2007

Org. Biomol. Chem., 2007,5, 2274-2282

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Synthesis of asymmetrically substituted cyclen-based ligands for the controlled sensitisation of lanthanides

K. E. Borbas and J. I. Bruce, Org. Biomol. Chem., 2007, 5, 2274 DOI: 10.1039/B705757A

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