1. Main Group Metal Complexes of Si, Ge and Al with an Unsymmetrical N,N'‐Substituted Diamide Ligand.
- Author
-
Pracht, Martin, Roschke, Felix, Rüffer, Tobias, Korb, Marcus, Schaarschmidt, Dieter, Auer, Alexander A., Lang, Heinrich, and Mehring, Michael
- Subjects
- *
ALUMINUM hydride , *ALUMINUM compounds , *METALS , *LIGANDS (Chemistry) , *AMIDES - Abstract
Unsymmetrically N,N'‐substituted metal amides of silicon, germanium and aluminium were synthesized starting from N‐ethyl‐2‐(n‐propylaminomethyl)phenylamine (1, Et,nPr‐ampaH2). Reaction of the dilithium compound of 1 with SiCl4 gave spirocyclic Si(Et,nPr‐ampa)2 (2) and Cl2Si(Et,nPr‐ampa) (3). Reduction of 3 with potassium resulted in the formation of the corresponding cyclotetrasilane [Si(Et,nPr‐ampa)]4 (4), whereas the reaction of 3 with lithium triethylborohydride gave the dihydro silane H2Si(Et,nPr‐ampa) (5). The corresponding germanium(IV) compounds Ge(Et,nPr‐ampa)2 (6) and Cl2Ge(Et,nPr‐ampa) (7) were synthesized starting from GeCl4, amine 1 and NEt3 using appropriate stoichiometric ratios. Reaction of Ge[N(SiMe3)2]2 with amine 1 provided the germylene [Ge(Et,nPr‐ampa)]2 (8). The aluminium dichloro compound Cl2Al(Et,nPr‐ampaH) (9) was obtained either by reaction of the dichlorogermine 7 with lithium aluminium hydride or by reaction of the dilithium salt of 1 with AlCl3. Reaction of trimethylaluminium with amine 1 provided the amido‐amine (CH3)2Al(Et,nPr‐ampaH) (10) which was converted into the diamide CH3Al(Et,nPr‐ampa) (11) by methane elimination. [ABSTRACT FROM AUTHOR] more...
- Published
- 2024
- Full Text
- View/download PDF