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Lithium η<sup>3</sup>-aza-allyl) type complexes derived from the metallation of 2-(Me<sup>3</sup>Si)<sub>3 –n</sub>CH<sub>n</sub>C<sub>5</sub>H<sub>4</sub>N; influence of solvent and degree of substitution, n= 1 or 2, on the nature of the product
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1984
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Materials ScienceInorganic ChemistryChemical EngineeringHexane Yields Rli·rhEngineeringInorganic SynthesisCoordination ComplexN= 1Organometallic CatalysisCatalysisSystems Ch3-cChemistryMolecular ComplexCrystallographyType ComplexesHexane Affords RliInorganic Compound
Metallation of 2-Me3Si)2CHC5N (RH) with LiBun in hexane yields RLi·RH, (1), whreas RH with LiBun and tmeda (tetramethylethylenediamine; 1 equiv.) in hexane affords Rli(tmeda), (2); the related 2-(Me3Si)CH2C5H4N (R′H) with LiBun in a hexane–diethyl ether mixture gives [{LiR′(OEt2)}2], (3): compounds (1)–(3), shown by X-ray crystallography to have novel η3-aza-allyl ligand geometries, are regarded as models for the bonding in the products of metallation of systems CH3-C(R″)NR‴.