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Bimetallic Lanthanide Complexes Derived from Macrocycle-Appended m-Xylyl Derivatives: Synthesis and Spectroscopic Properties

✍ Scribed by Matteo P. Placidi; Louise S. Natrajan; Daniel Sykes; Alan M. Kenwright; Stephen Faulkner

Publisher: John Wiley and Sons
Year: 2009
Tongue: German
Weight: 291 KB
Volume: 92
Category: Article
ISSN: 0018-019X
DOI: 10.1002/hlca.200900141

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✦ Synopsis

Abstract

A series of bimetallic lanthanide complexes was prepared from a bimacrocyclic system in which two DO3A units are linked by a m‐xylyl unit appended with either a NO~2~ or an NH~2~ group (DO3A=1,4,7,10‐tetraazacyclododecane‐1,4,7‐triacetic acid). The Nd‐, Eu‐, Tb‐ and Yb‐complexes were all luminescent: time‐resolved studies indicated that the lipophilic xylyl group restricts close approach of H~2~O to the metal centre.

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