N-Heterocyclic Carbene Stabilized Dichlorosilaimine IPr•Cl2Si=NR

N-Heterocyclic carbene stabilized dichlorosilaimine IPr center dot Cl2Si=N(Diip) (2) has been synthesized by the reaction of dichlorosilylene IPr center dot SiCl2 (1) with bis(2,6-diisopropylphenyl)carbodiimide (IPr = :C[N(2,6-i-Pr-2-C6H3)CH](2), Diip = 2,6-i-Pr-2-C6H3). Reaction of 1 with terphenyl azides also affords dichlorosilaimines IPr center dot Cl2Si=N(2,6-Diip(2)-C6H3) (3) and IPr center dot Cl2Si=N(2,6-Triip(2)-C6H3) (4) (Triip = 2,4,6-i-Pr-3-C6H2). Compounds 2-4 are stable under an inert atmosphere and were characterized by elemental analysis and NMR spectroscopic studies. The molecular structures of 2-4 were determined by single-crystal X-ray analysis.