Introduction of plumbole to f-element chemistry

Abstract

f-element sandwich complexes bearing a η5-plumbole ligand are reported. Quantum chemical calculations suggest that this ligand retains its aromaticity upon coordination. The Er complexes show SMM behavior including magnetic hysteresis.

Silole and germole complexes of lanthanum and cerium

“…15 Around the same time, our group prepared the first examples of heteroleptic lanthanide sandwich-type complexes comprising a plumbole and a bulky COT ligand as decks. 16 Such dianionic heterocycles might be ideal starting materials to construct multi-decker lanthanide complexes. Combining the dianionic COT moiety with one heavy group 14 metallole (silole or germole) within the coordination sphere of the larger lanthanide element, resulted in unprecedented coordination modes and coordination polymers.…”

An 'Intermetallic' Molecular Nanomagnet with the Lanthanide Coordinated Only by Transition Metals

“…32 Noteworthy, the introduction of p-block heavy metals directly into the coordination sphere of the lanthanide was also pursued resulting in interesting examples of MNMs. 39,40 Here, we apply the principles of easy-axis magnetic anisotropy design with the methodology of Kempe et al that led previously to rare-earth metal complexes coordinated solely by transition metals. 32 Herein, we demonstrate the first step toward molecular "intermetallic" nanomagnets, a perfectly trigonal planar [Er III (Re I Cp2)3] complex (ErRe3; Cp = cyclopentadienyl anion) with magnetic hysteresis up to 7.2 K (at 22 Oe/s magnetic sweep rate) where Er III is solely coordinated by three Re I ions.…”

An 'Intermetallic' Molecular Nanomagnet with the Lanthanide Coordinated Only by Transition Metals

“…32 Noteworthy, the introduction of pblock heavy metals directly into the coordination sphere of the lanthanide was also pursued resulting in interesting examples of MNMs. 39,40 Here, we apply the principles of easy-axis magnetic anisotropy design with the methodology of Kempe et al that led previously to rare-earth metal complexes coordinated solely by transition metals. 32 Herein, we demonstrate the rst step toward molecular "intermetallic" nanomagnets, a perfectly trigonal planar [Er III (Re I Cp 2 ) 3 ] complex (ErRe 3 ; Cp = cyclopentadienyl anion) with magnetic hysteresis up to 7.2 K (at 22…”