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Novel heteroditopic chelate for self-assembled gadolinium(III) complex with high relaxivity
Robert Ruloff1, Gerard van Koten Gv, Andre E Merbach
1Ecole Polytechnique Federale de Lausanne, Laboratoire de Chimie Inorganique et Bioinorganique, BCH Lausanne, Switzerland.
Chemical Communications (Cambridge, England)
|March 27, 2004
Abstract:
[Fe(tpy-DTTA)(2)Gd(2)] is a self-assembled trinuclear complex based on a novel ligand in which a terpyridine and a poly(amino carboxylate) moiety are connected; it has a well-defined topology with favourable features to attain high relaxivities, i.e. a rigid Fe(II)(tpy)(2) core, reduced flexibility at the periphery thanks to a short linker, and efficient separation of the two Gd(III) centres.