THE PREPARATION, PHYSICAL PROPERTIES, AND HEATS OF COMBUSTION OF FOUR ALKYLSILANES

摘要

A group of alkylsilanes consisting of monoethylsilane, diethyl-silane, and trimethylsilane were prepared in 65- to 90-percent yield by reduction of the respective alkylchlorosilanes with either lithium hydride or lithium aluminum hydride. Tetramethylsilane was prepared by purification of commercial material. The boiling points, densities, refractive indices, and freezing points were determined and are pre¬sented together with a survey of literature values. The heats of com¬bustion, obtained experimentally for the first time, are shown to be in good agreement with calculated values.