Formation and Reactivity of heavy Group 14‐15 bonds

Abstract

AbstractA series of low‐valent Group 14–15 compounds were obtained starting from [(Dipp2NacNac)MCl] (M=Ge‐Pb) (I–III) (Dipp2NacNac=HC{C(Me)N(Dipp)}2) and M'E(SiMe3)2 (M’=Li, E=As; M’=K, E=Sb, Bi) (IV–VI). In the course of this investigations we were able to fully characterize all permutations except Pb−Bi for compounds of the composition [(Dipp2NacNac)ME(SiMe3)2] (1E: M=Ge, 2E: M=Sn, 3E: M=Pb). Thus, we report the first low valent tetrelene with Sn−Bi bond. All isolated compounds, were examined by NMR spectroscopy, IR spectroscopy and except compound 1As by X‐ray structure analysis. Moreover, were examined UV‐Vis spectroscopy and investigated the reactivity of these compounds towards different substrates in more detail. Starting with the compound [(Dipp2NacNac)SnAs(SiMe3)2] (2As), the reaction with red selenium yields [(Dipp2NacNac)Sn−Se‐As(SiMe3)2] (4) which exhibits a Sn−Se−As chain.