| 1 | Author | G. Stalke, M. Eorge, Sheldrick | Requires cookie* |
| Title | Neue Cyclophosphazene mit Metallen der III. Hauptgruppe als Ringbausteine  | ||
| Abstract | Acylic silylated phosphazenes of the type HN(PR2NSiMe3)2 (1) react quantitatively with molecules MMe3 (M = Al, Ga, In) under ring formation and CH4 evolution. The ring com pounds N(PPh2NSiMe3)2AlMe2 (2 a) and N(PPh2NSiMe3)2InMe2 (4 a) have been investiga ted by X-ray structure determination. 2a and 4a crystallize in the space groups P 1 and P 3 15 respectively; they show different conformations regarding the cyclohexane framework. NMR spectroscopy of the nuclei in the chelating phosphazene ligand indicates decreasing Lewis acidity of the metal containing fragments in the series AlMe2 > GaMe2 > InMe2. | ||
| Reference | (Z. Naturforsch. 49b, 43—49 [1994]; eingegangen am 22. September 1993) | ||
| Published | 1994 | ||
| Keywords | Cyclophosphazenes, Chelating Ligands, Conformational Isomers, Lewis Acidity, 27Al NMR Spectra | ||
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