The tetramethylpiperidinyl-1-oxide anion (TMPO–) as a ligand in lanthanide chemistry: synthesis of the per(TMPO−) complex [(ONC5H6Me4)2Sm( μ-ONC5H6Me4)]2
Abstract
(C5Me5)3Sm reacts with the free radical 2,2,6,6-tetramethylpiperidinyl-1-oxy (TMPO) to form (C5Me5)2 and the per nitroxide [(η1-ONC5H6Me4)2 Sm(μ-η1∶η2-ONC5H 6Me4)]2