NHC-stabilized Parent Arsanylalanes and -gallanes.

ABSTRACT: The synthesis and characterization of the unprecedented compounds IDipp⋅E'H₂ AsH₂ (E'=Al, Ga; IDipp=1,3-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene) are reported, the first monomeric, parent representatives of an arsanylalane and arsanylgallane, respectively, stabilized only by a LB (LB=Lewis Base). They are prepared by a salt metathesis reaction of KAsH₂ with IDipp⋅E'H₂ Cl (E'=Al, Ga). The H₂ -elimination pathway through the reaction of AsH₃ with IDipp⋅E'H₃ (E'=Al, Ga) was found to be a possible synthetic route with some disadvantages compared to the salt metathesis reaction. The corresponding organo-substituted compounds IDipp⋅GaH₂ AsPh₂ (1) and IDipp⋅AlH₂ AsPh₂ (2)

SUBMITTER: Weinhart MAK 

PROVIDER: S-EPMC7898810 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature