1. Open-Shell Early Lanthanide Terminal Imides
- Author
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Theresa E. Rieser, Renita Thim-Spöring, Dorothea Schädle, Peter Sirsch, Rannveig Litlabø, Karl W. Törnroos, Cäcilia Maichle-Mössmer, and Reiner Anwander
- Subjects
Ions ,Models, Molecular ,Colloid and Surface Chemistry ,Organometallic Compounds ,General Chemistry ,Crystallography, X-Ray ,Imides ,Biochemistry ,Lanthanoid Series Elements ,Catalysis - Abstract
Group 3- and 4f-element organometallic chemistry and reactivity are decisively driven by the rare-earth-metal/lanthanide (Ln) ion size and associated electronegativity/ionicity/Lewis acidity criteria. For these reasons, the synthesis of terminal "unsupported" imides [Ln═NR] of the smaller, closed-shell Sc(III), Lu(III), Y(III), and increasingly covalent Ce(IV) has involved distinct reaction protocols while derivatives of the "early" large Ln(III) have remained elusive. Herein, we report such terminal imides of open-shell lanthanide cations Ce(III), Nd(III), and Sm(III) according to a new reaction protocol. Lewis-acid-stabilized methylidene complexes [Tp
- Published
- 2022