Inorganic Chemistry, Vol.58, No.22, 15385-15392, 2019
Homoleptic Group 13 Trimethylsilylchalcogenolato Metalates [M(ESiMe3)(4)](-) (M = Ga, In; E = S, Se): Metastable Precursors for Low-Temperature Syntheses of Chalcogenide-Based Materials
We communicate the synthesis and full characterization of so far unknown tetrakis(trimethylsilylsulfido) and -(trimethylsilylselenido) gallates and indates in form of their organic salts Cat(+)[M(ESiMe3)(4)](-) (M = Ga, In; E = S, Se; Cat = dimethylpyrrolidinium (DMPyr(+)), Ph4P+, (dppe)(2)Cu+, (dmpe)(2)Cu+). These thermally metastable silylchalcogenolatometalates can act as modular precursors for an ionic-liquid- or organic-solution-based low-temperature synthesis of multinary metal chalcogenide materials such as the CIGS species Cu(InxGa1-x)-(SySe1-y)(2).