Organoaluminum Silylamido Complexes
The reaction between [Et2AlCl] and 1 equiv of HN(SiMe3)2 in CH2Cl2 afforded colorless crystals of [Et2AlCl{NH(SiMe3)2}] (1). In contrast, reaction of [Et2AlCl] with 1 equiv of HN(SiMe2H)2 or HN t Bu(SiMe3) resulted in the isolation of dimers, of the type [EtAlCl{NH(R‘)}]2 (2, R‘ = SiMe2H; 3, R‘ = t...
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| Published in: | Organometallics Vol. 23; no. 12; pp. 2939 - 2943 |
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| Main Authors: | , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
American Chemical Society
07-06-2004
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| Online Access: | Get full text |
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| Summary: | The reaction between [Et2AlCl] and 1 equiv of HN(SiMe3)2 in CH2Cl2 afforded colorless crystals of [Et2AlCl{NH(SiMe3)2}] (1). In contrast, reaction of [Et2AlCl] with 1 equiv of HN(SiMe2H)2 or HN t Bu(SiMe3) resulted in the isolation of dimers, of the type [EtAlCl{NH(R‘)}]2 (2, R‘ = SiMe2H; 3, R‘ = t Bu). Reaction of [Et3Al] with 1 equiv of HN(SiMe2H)2 or HN(SiMe3)2 yielded the expected dimeric complexes, [Et2Al{N(SiMe2H)2}]2 (4) and [Et2Al{N(SiMe3)2}]2 (5), via ethane elimination. The related reaction between [MeAlCl2] and HN t Bu(SiMe3) in CH2Cl2 solution resulted in the formation of the 1:1 adduct [MeAlCl2{NH2( t Bu)}] (6). The structures of compounds 1 and 6 have been determined by X-ray crystallography. In addition, the decomposition of 1 and 6 has been studied by thermal gravimetric analysis. |
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| Bibliography: | ark:/67375/TPS-8MWG6NQ9-0 istex:6E1D78DECDE42C88D58FE90AFF96F23E23D7F721 |
| ISSN: | 0276-7333 1520-6041 |
| DOI: | 10.1021/om049861x |