A Li2Br2 ring trapped by tert-butylaminotin(II) bromide and tert-butylamine as found by X-ray crystallography

Abstract

Reaction of the cyclic compound [Bu^t(H)][graphic omitted]Br with tert-butylamine intermediate yields the [Bu^t(H)N–SnBr]₂, which with excess tert-butylamine, ligates a four-membered Li₂Br₂ ring [2.61(2) and 2.69(2)Å] by multiple acid–base interactions between the metallic and the non-metallic centres giving a molecular product of the composition {Sn₂[N(H)Bu^t]₂Br₂}₂·Li₂Br₂·4Bu^tNH₂ as shown by X-ray crystallography.