Synthese und Struktur des Kalium-tetrakis(triisopropylsilylphosphanyl)indats / Synthesis and Structure o f Potassium Tetrakis(triisopropylsilylphosphanyl)indate

Abstract

The metalation of triisopropylsilylphosphane with potassium bis(trimethylsilyl)amide yields quantitatively colorless pyrophoric potassium triisopropylsilylphosphanide (1 ) which is insoluble in hydrocarbons. The reaction of 1 with indium(III)chloride in toluene gives potassium tetrakis(triisopropylsilylphosphanyl)indate (2) in a rather poor yield. In the solid state this compound shows the formation of a one-dimensional polymeric chain with the indium as well as the potassium atoms in a distorted tetrahedral environment. The mean In-P and K-P bond lengths are 257.0 and 330.4 pm, respectively.