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Simple Lithium Amides Amidolithiums and Their Complexes Ring Laddering

Simple Lithium Amides (Amidolithiums) and Their Complexes Ring Laddering [Pg.92]

We describe first the structures found for uncomplexed lithium amides (i.e., those not containing added neutral Lewis bases such as THF, HMPA, or TMEDA) by X-ray crystallography, by molecular orbital calculations, and by solution methods (Section III,B). In Section III,C, the structures of lithium amide complexes are discussed similarly. [Pg.94]

Uncomplexed Lithium Amides 1. Solid-State Structures [Pg.94]

60 A to H, 2.32 A). The f (ohexyl)2NLi] amide has been isolated as a colorless crystalline material (melting point 209-211°C), but twinning has so far prevented solution of the structure (157). An unsolvated (AsLi)3 ring trimer [ (Me3Si)2CH]2AsLi 3 has also been reported (158). However, in contrast to the (NLi)3 species (55)-(57), the ring is not planar and deviates from threefold symmetry. One of the [Pg.94]

Structures and Key Parameters Found for Uncomplexed Lithium Amides [Pg.95]




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Amides complex

Ladder

Laddering

Ladders 2,3]-ladder

Lithium amide

Lithium amides ring laddering

Lithium complexes

Lithium complexes amides

Ring complexes

Simple amides

Simple ring

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