Magnetic anisotropy and spin-parity effect along the series of lanthanide complexes with DOTA

Marie-Emmanuelle Boulon; Giuseppe Cucinotta; Javier Luzon; Chiara Degl'Innocenti; Mauro Perfetti; Kevin Bernot; Guillaume Calvez; Andrea Caneschi; Roberta Sessoli

doi:10.1002/anie.201205938

Magnetic anisotropy and spin-parity effect along the series of lanthanide complexes with DOTA

Angew Chem Int Ed Engl. 2013 Jan 2;52(1):350-4. doi: 10.1002/anie.201205938. Epub 2012 Dec 3.

Authors

Marie-Emmanuelle Boulon¹, Giuseppe Cucinotta, Javier Luzon, Chiara Degl'Innocenti, Mauro Perfetti, Kevin Bernot, Guillaume Calvez, Andrea Caneschi, Roberta Sessoli

Affiliation

¹ Department of Chemistry "Ugo Schiff", INSTM RU University of Florence, Sesto Fiorentino, Italy.

PMID: 23208792
DOI: 10.1002/anie.201205938

Abstract

Spotting trends: Upon going from Tb(III) to Yb(III) centers in the complexes of the DOTA(4-) ligand, a reorientation of the easy axis of magnetization from perpendicular to parallel to the Ln-O bond of the apical water molecule is experimentally observed and theoretically predicted (SMM=single-molecule magnet). Only ions with an odd number of electrons show slow relaxation of the magnetization.