Thermal decomposition of butylindium thiolates and preparation of indium sulfide powders

Thermal properties of organoindium thiolates were investigated by means of thermogravimetric (TG) and differential thermal (DT) analysis. Dibutyl‐indium propylthiolates (Bu n 2 InSPr n , Bu n 2 InSPr i , Bu i 2 InSPr n and Bu i 2 InSPr i ) decomposed up to 280°C along with an exothermic DT peak and gave indium(I) sulfide (InS) powders. Although the arylthiolate Bu n 2 InSPh also afforded InS powders, it decomposed at a slightly higher temperature. In contrast, the dithiolate and the dithiocarbamate complexes [Bu n In(SPr i ) 2 and In (S 2 CNBu 2 ) 3 ] gave indium(III) sulfide (In 2 S 3 ) powders.