The role of the capping bond effect on pyclen natY3+/90Y3+ chelates: full control of the regiospecific N-functionalization makes the difference. Issue 69 (15th August 2017)

• Record Type: Journal Article
• Authors: Le Fur, Mariane; Beyler, Maryline; Molnár, Enikő; Fougère, Olivier; Esteban-Gómez, David; Tircsó, Gyula; Platas-Iglesias, Carlos; Lepareur, Nicolas; Rousseaux, Olivier; Tripier, Raphaël
• Is Part Of: Chemical communications. Volume 53:Issue 69(2017)
• Page Start: 9534
• Page End: 9537
• Publication Date: 2017-08-15
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/c7cc05088g
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : A dissymmetric pyclen based ligand shows astonishing nat Y 3+ and 90 Y 3+ complexation properties. 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 Y 3+ 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 nat Y 3+ and 90 Y 3+ dissymmetric derivatives presenting enhanced thermodynamic stability and kinetic inertness.