Dismutation of Tricyanoboryllead Compounds: The Homoleptic Tetrakis(tricyanoboryl)plumbate Tetraanion.

ABSTRACT: A series of unprecedently air-stable (tricyanoboryl)plumbate anions was obtained by the reaction of the boron-centered nucleophile B(CN)₃ ^2- with triorganyllead halides. Salts of the anions [R₃ PbB(CN)₃ ]^- (R=Ph, Et) were isolated and found to be stable in air at room temperature. In the case of Me₃ PbHal (Hal=Cl, Br), a mixture of the anions [Me_4-n Pb{B(CN)₃ }_n ]^n- (n=1, 2) was obtained. The [Et₃ PbB(CN)₃ ]^- ion undergoes stepwise dismutation in aqueous solution to yield the plumbate anions [Et_4-n Pb{B(CN)₃ }_n ]^n- (n=1-4) and PbEt₄ as by-product. The reaction rate increases with decreasing pH v

SUBMITTER: Haring M 

PROVIDER: S-EPMC9322310 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature