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Oxidative addition reactions of gallanediyl LGa and AsX3 yield gallaarsenes LGaAsGa(Cl)L (X = Cl 1; Br 2) with a Ga–As double bond.

We report the synthesis and structural characterization of Ga-substituted diarsene [L(OEt)GaAs]2, which is an exemplary case of a Ga-substituted dipnictene of the general type [L(X)Ga]2E2 (L=C[C(Me)N(2,6-i-Pr2-C6H3)]2, X = F, Cl, Br, I, NMe2, OEt, E = As, Sb, Bi). We examined this extended series of compounds computationally and found that attractive London dispersion interactions between the substituents on the N,N'-chelating β-diketiminate ligands as well as pnictogen-π interactions between the group 15 metal center and the ligand are a key factor for the stability and the electronic structures of such types of complexes.

The reactions of two equivalents of LGa {L = HC[C(Me)N(2,6-iPr 2 C 6 H 3 )] 2 } with SbX 3 (X = Br, I, OEt) proceed with elimination of LGaX 2 and formation of Ga-substituted distibenes

Room-temperature stable main group element carbonyl complexes are rare. Here we report on the synthesis of two such complexes, namely gallium-substituted silylene-carbonyl complexes [L(X)Ga]2SiCO (X = I 2, Me 3;...