Synthesis and Crystal Structures of the First Antimony(III) Aziridinides

Inorg Chem. 2017 Apr 17;56(8):4267-4270. doi: 10.1021/acs.inorgchem.7b00523. Epub 2017 Mar 27.

Abstract

The first antimony(III) aziridinyl derivatives are reported. Treatment of anhydrous SbCl3 with N-lithioaziridine Li(Azn) (Azn = NC2H4) afforded the structurally unique heterobimetallic lithium/antimony(III) amide complex [Li3Sb(μ3-Cl)2(μ-Azn)4(THF)2] (1). Homoleptic Sb2(Azn)6 (2) has become available for the first time through an amide group exchange reaction between Sb(NMe2)3 and 3 equiv of aziridine. The low-melting Sb2(Azn)6 exhibits a "weak dimer" structure in the crystal.