The thermodynamic properties of talyl-and phenylsilanes

The enthalpies of fusion of C6H5SiH3, C6F5Si(CH3)3, and (C6H5)4Si were obtained in scanning calorimetry measurements. Pressure over the condensed talylsilane 4-CF3C6F4SiCH3, phenylsilane C6H5SiH3, and pentafluorophenylsilane C6F5SiCH3, (C6F5)2Si(CH3)2, and (C6F5)4Si phases was measured by the static method with the use of membrane null manometers. Equations approximating the dependences of saturated vapor pressures on temperature and the enthalpy and entropy of vaporization were obtained.