Dilithium‐N,N′‐bis(trimethylsilyl)hydrazid und ein Hydrolyseprodukt side‐on und end‐on an N2−2‐ und O2−2‐gebundene Li‐Kationen

Dilithium N,N′‐Bis(trimethylsilyl)hydrazide and a Hydrolysis Product: Side‐On‐ and End‐On‐Coordinated Li Cations to N2−2 and O2−2 N,N′‐Bis(trimethylsilyl)hydrazine is converted into the dilithium derivative [(Me3Si)2N2Li2] · 2 thf (1) by nBuLi. Compound 1 forms a tetramer which lies on a crystallographic inversion centre. The Li+ ions are found to be end‐on to the NN units and also coordinated by thf, but three Li+ ions are also positioned symmetrically above the NN bonds. The hydrolysis of 1 in air leads to the formation of [(Me3SiOLi)4 · Li2O2 · LiN(SiMe3)2] · 2 thf (2) which contains four oxide and one peroxide ions. The O2−2 unit is side‐on‐coordinated by three Li+.