Kristallstruktur eines Lithiumsilylamidbutanids

Crystal Structure of a Lithiumsilylamidebutanide Colorless single crystals of {Li₆[Me₂(H)Si—N—Si(H)—(CHMe₂)₂]₂[n‐C₄H₉]₄} ( 1 ) were obtained from a solution of Me₂(H)SiN(Li)Si(H)(CHMe₂)₂ and n‐C₄H₉Li in n‐hexane. The X‐ray analysis showed that the core of 1 is a distorted octahedron of lithium atoms with ten long and with two short LiÄLi distances. Four of the eight triangular Li₃ faces are capped by an n‐butyl group. The nitrogen atoms of the amide groups are situated about opposite edges of adjacent unoccupied Li₃ faces. (Si)H····Li interactions exist between the hydridic H atom of each Me₂(H)Si group and one Li atom.