E. Rijnberg et al., HETEROLEPTIC METALLACYCLIC POTASSIUM ORGANODIAMIDO ZINCATE COMPLEX - SYNTHESIS AND STRUCTURE OF POLYMERIC ([K(THF)][MEZN(BU(T)NCH=CHNBU(T))])(N), Journal of the Chemical Society, Chemical Communications, (18), 1995, pp. 1839-1840
The reaction of the C-C coupled dimer oi two neutral organozinc radica
ls, [MeZn{Bu(t)N=CHCH(NBu(t))CH(NBu(t))CH=NBu(t)}ZnM] 1, with potassiu
m in tetrahydrofuran affords the metallacyclic heteroleptic potassium
organodiamido zincate K[MeZn(Bu(t)NCH=CHNBu(t))] 2 quantitatively, whi
ch exists in the solid state (X-ray crystallography) as a linear polym
er formed by alternating Potassium cations and organodiamidozincate an
ions.