Rare-Earth Metal Diimide Complexes via Alkylaluminate Templating, Including a Ceric Derivative
| Autor: | Cäcilia Maichle-Mössmer, Renita Thim, Dorothea Schädle, Reiner Anwander |
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| Rok vydání: | 2018 |
| Předmět: |
Lanthanide
Denticity 010405 organic chemistry Ligand Organic Chemistry chemistry.chemical_element General Chemistry 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences chemistry.chemical_compound Cerium Phenylacetylene chemistry Hydrogenolysis Diimide Polymer chemistry Protonolysis |
| Zdroj: | Chemistry (Weinheim an der Bergstrasse, Germany). 25(2) |
| ISSN: | 1521-3765 |
| Popis: | Protonolysis of lanthanide tris(tetramethylaluminate)s with two equivalents of 2,6-diisopropylaniline affords LaIII and CeIII diimide compounds Ln[(μ-NC6 H3 iPr2 -2,6)2 AlMe2 ](thf)4 featuring a bidentate AlMe2 -linked diimido ligand. As revealed for the corresponding Ce(GaMe4 )3 -reaction, formation of the diimide complexes proceeds via tetrametallic complexes of the type [Ce{(μ-NC6 H3 iPr2 -2,6)(HNC6 H3 iPr2 -2,6)(MMe3 )}]2 (Me=Al, Ga). Oxidation of the cerium(III) complex with hexachloroethane leads to a neutral CeIV diimide species. Partial protonolysis with phenylacetylene and hydrogenolysis via H3 SiPh give conclusive insights into the reactive coordination sites of such diimide complexes. |
| Databáze: | OpenAIRE |
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