heating, with Br2-vapour in CO2-flow; InBr3 removed with CO2-flow at high temp., distn. of InBr2;

in benzene High Pressure; InBr3 and NaNH2 (molar ratio 1:3) added into autoclave filled with anhyd. benzene; sealed; heated at 210-230°C for 24 h;

in diethylene glycol dimethyl ether; xylene Ar-atmosphere; heating for 80 h, solvent removal, washing (Et2O, 3 times), heating at 250°C; detd. by X-ray diffraction and XPS;

in xylene Ar-atmosphere; heating for 80 h, solvent removal, washing (Et2O, 3 times), heating at 250°C; detd. by X-ray diffraction and XPS;

in tetrahydrofuran byproducts: H2; N2, blue soln. of semiquinone sodium salt added dropwise over 1 h to a soln. of In-salt, stirred for 2 h at room temp., NaBr removed from intermediate product by filtrn., excess 4-picoline added to the filtrate; collected, dried, recrystd. (toluene/THF); elem. anal.; intermediate and formn. of In(I) products also discussed;

in neat (no solvent) heating (evacuated quartz cell, 325°C, 2 h); according to Wehrli, M., Miescher, E., Helv. Phys. Acta 7, 298 (1934) and to Barrow, R. F.,et al., Trans. Faraday Soc. 51, 1657 (1955);

in neat (no solvent, solid phase) In, S and InBr3 (in ratio 14:15:1) heated in sealed quartz glass ampouleto 773 K; annealed at 773 K for 1 wk;

in diethyl ether InBr3 is dissolved in Et2O, at 0°C is added LiCH(SiMe3)2 in Et2O, the soln. is heated under reflux for 2.5 h, (under exclusion of light).; distn. of solvent under vac., to the residue is added pentane, filtn., drying of filtrate, sublimation of product (1E-4 Torr, oil bath temp. of 100°C);