[(DippNH)2Al(µ-NHDipp)2Li·thf] and [thf·Li(µ-NHCy)3Sn(µ-NHCy)3Li·thf]·C6H5Me, potential building blocks for heterometallic imido compounds (Dipp = 2,6-Pri2C6H3)

Abstract

[(DippNH)₂Al(µ-NHDipp)₂Li·thf] 1 and [thf·Li(µ-NHCy)₃Sn(µ-NHCy)₃Li·thf]·C₆H₅Me 2 are produced from the reactions of AlCl₃ and SnCl₄ or MeAlCl₂ and MeSn(NMe₂)₃ with the apporopriate primary amido lithium precursors [RNHLi; R = 2,6-Prⁱ₂C₆H₃ (Dipp), C₆H₁₁ (Cy)]; both complexes have ion-paired structures in the solid state with the retention of potentially reactive N–H functionality providing precursors for heterometallic species containing [M(NR)_x(NHR)_{n – x}]^{(1 + x)–} anions (M = Al, n = 4; M = Sn, n = 6).