Monomeric, coloured germanium(II) and tin(II) di-t-butylamides, and the crystal and molecular structure of Ge(NCMe2[CH2]3CMe2)2

Abstract

The orange (Ge^II) or maroon (Sn^II) bivalent group 4 metal di-t-butylamides were obtained from LiNBu^t₂ and GeCl₂·dioxan or SnCl₂in tetrahydrofuran, and are low melting diamagnetic, volatile, monomeric (cryoscopy in C₆H₁₂), labile compounds (readily yielding·NBu^t₂); X-ray analysis of the title compound to R= 0·091 shows that this related Ge^II amide is a monomer in the crystal with a long Ge–N bond of 1·88₅Å and an NGeN angle of 111·4(5)°.