HCl in hydrogenchloride Electrolysis; soln. of RuCl3 in 2n HCl is electrolysed as catholyte; subsequent concn. of the red soln. in HCl-stream under exclusion of air first at the b.p., later at 80-100°C to dryness;; drying over concd. H2SO4 in vacuum leads to a product free from Ru(IV);;

hydrogenchloride in hydrogenchloride dissolving Ru(OH)4 in HCl (100°C), addn. of H2C2O4; according to Shorikov, Yu. S., et al., Zh. Neorg. Khim., 1984, 29(12), 2999; (Russ. J. Inorg. Chem., 1984(12)); evapn., drying (vac. over alkali, room temp.); elem. anal.;

in ethanol mixt. of Ru compd. and diene (11 equiv.) in ethanol was refluxed for 12 h; cooled; filtered under suction; washed (methanol);

sodium tetrahydroborate; α-cyclodextrin in water addn. of aq. soln. of cyclodextrin to aq. soln. of ruthenium chloride, stirring for 30 min, addn. of aq. soln. of sodium borohydride, stirring at room temp. for 24 h;

in ethanol 85°C, 3 h; filtration, washing with ethanol and ether, drying under reduced pressure, elem. anal.;

LiCl in 2-methoxy-ethanol ligand, RuCl3*H2O and LiCl were stirred at reflux in 2-methoxyethanol under N2 for 8 h, cooled to room temp.; refrigerated at -8°C overnight, filtered, washed with cold 2-methoxyethanol, then with H2O and Et2O, dried;