The role of the capping bond effect on pyclen natY3+/90Y3+ chelates: full control of the regiospecific N-functionalization makes the difference

Le Fur, Mariane; Beyler, Maryline; Molnár, Enikö; Fougère, Olivier; Esteban-Gómez, David; Tircsó, Gyula; Platas-Iglesias, Carlos; Lepareur, Nicolas; Rousseaux, Olivier; Tripier, Raphaël

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http://hdl.handle.net/2183/21395

The role of the capping bond effect on pyclen natY3+/90Y3+ chelates: full control of the regiospecific N-functionalization makes the difference

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EstebanGomez_David_2017_Role_capping_bond_effect_pyclen_chelates_full_control_regiospecific.pdf (634.33 KB)

Identifiers

URI: http://hdl.handle.net/2183/21395

Publication date

2017-09-07

Authors

Le Fur, Mariane

Beyler, Maryline

Molnár, Enikö

Fougère, Olivier

Esteban-Gómez, David

Tircsó, Gyula

Platas-Iglesias, Carlos

Lepareur, Nicolas

Rousseaux, Olivier

Tripier, Raphaël

Bibliographic citation

The role of the capping bond effect on pyclen natY3+/90Y3+ chelates: full control of the regiospecific N-functionalization makes the difference. M. Le Fur, M. Beyler, E. Molnár, O. Fougère, D. Esteban-Gómez, G. Tircsó, C. Platas-Iglesias, N. Lepareur, O. Rousseaux and R. Tripier, Chem. Commun., 2017, 53, 9534–9537.

Abstract

[Abstract] Thanks to a smart regiospecific N-functionalization, a pyclen based ligand bearing one picolinate and two acetate arms organized in a dissymmetric manner was synthesized for Y3+ complexation, and compared to its symmetric analogue. The nature of the capping bonds around the metal coordination environment has a dramatic effect on the properties of the chelate, the natY3+ and 90Y3+ dissymmetric derivatives presenting enhanced thermodynamic stability and kinetic inertness.