The N,N-diisopropylaminomethyl aluminium compound [tBu2AlCH2NiPr2·LiCl]2
(1) and the gallium compounds Li[tBu2Ga(CH2NiPr2)2]
(2) and [tBu2GaCH2N(H)iPr2]Cl·tBu3Ga (3) were prepared by transmetallation of N,N-diisopropylaminomethyllithium LiCH2NiPr2 with di-tert-butylaluminium or -gallium chloride, and characterised by elemental analyses, multinuclear NMR spectroscopy (1H, 13C, 27Al, 7Li) and IR spectroscopy. The crystal structures have been determined by single crystal X-ray diffraction. Compound 1 aggregates as a centrosymmetric dimer, with two Al–C–N units connected by a frame of two LiCl molecules [Al–Cl 2.367(1), Cl–Li 2.339(4) and 2.374(4), Li–N 1.977(4)
Å]. Compound 2 is a lithium organogallate with two weak Li⋯N bonds [1.965(7) and 1.937(7)
Å]. Compound 3 contains two different moieties: tBu3Ga and a [tBu2GaCH2N(H)iPr2]+ cation, which are bridged by a Cl− anion [Ga–Cl 2.445(1) and 2.579(1), H⋯Cl 2.362(3)
Å].
You have access to this article
Please wait while we load your content...
Something went wrong. Try again?