Hydrazine salts conformation

Dilithium salts of bis(silyl)hydrazines, which could be isolated as monomers, dimers, trimers, and tetramers in the solid state, are excellent precursors of fluorofunctional rings. These molecules have a twist conformation (Fig. 3). The endocyclic Si-N bonds are much shorter than the exocyclic ones (170 pm, 179 pm). 

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