X-Ray crystal and molecular structure of hexameric di-t-butylmethyleneaminolithium, (LiNCBut2)6: electron-deficient bridging of Li3 triangles by methyleneamino nitrogen atoms

Abstract

An X-ray crystallographic study of the title compound, (LiNCBu^t₂)₆, has revealed a ‘folded chair’ arrangement of its metal atoms held together by triply bridging methyleneamino groups in what is believed to be the first example of electron-deficient bridging through the nitrogen atom of an organonitrogen ligand.