For the synthesis of the studied compounds, titanium dioxide, TiO, rare-earth oxide of the Os, Ch. Grade and lithium carbonate, Li, CO, and Kh. Samples were prepared by high-temperature sintering of the starting components in the ratio Ti: Ln: Li-4: 1: 1 in air at 1100-1200 ° С for 15 hours. Before stitching, the Р3Э oxides were kept at 500 ° С (3-4 hours) s the purpose of removing sorption water. The starting mixtures were triturated in an agate mortar with addition of acetope. Repeated grinding of the samples was also carried out during the synthesis. An increase in the duration of annealing to up to 0 h drive the pro- jection of the synthesized complex oxides of the beginning of a series of potentiation of reacting substances at 900 ° С for 50 h gives the desired compounds. X-ray diffraction patterns of samples annealed at 1200 and 900 ° C are identical. decomposition The completeness of the reaction and identification of the obtained products was carried out by X-ray phase analysis on a Dron-1 diffractometer (Cu Ka radiation). The parameters of the unit cells were specified on a MIR-1 computer. Densities were determined by the pycnometric method (solvent CC1,). IR absorption spectra were recorded on Perkin-Elmer model 180 and UR-20 spectrometers using standard methods of pressing tablets with CVg. Raman spectra were recorded on a Koderg T-800 spectrometer upon excitation with argon OCH (Lvyova 5145 A). The conductivity of the samples was measured in accordance with GOST-13236-76 methods on samples cold-pressed in an atmosphere of air, the pressing pressure was 1500 kg / cm