DETERMINATION OF STRUCTURES OF MOLECULES OF LOWER HALIDES OF TRANSITION ELEMENTS BY GAS ELECTRON-DIFFRACTION ANALYSIS. I. TITANIUM TRICHLORIDE

Article abstract of DOI:10.1007/BF00745254

A method for the electron-diffraction investigation of unstable halides of transition elements with lower valences is described.The relative pressures of TiCl4, TiCl3, TiCl2, and TiCl vapors in the TiCl4 + Ti system at 400-2000 deg K were calculated.Electron-diffraction patterns of gaseous TiCl3 at 1100 deg K were obtained.The effective geometrical and vibrational parameters of the TiCl3 molecule were determined.The equilibrium structure with D_3h symmetry was found within the harmonic approximation, and the vibrational frequencies and force constants were evaluated.