in water; acetonitrile byproducts: CF3COOH, HgCl2; N2 atm.; equimolar ratio, pptn. (in 30 min); decantation, drying (vac.), sublimation (vac., 60-70°C); elem.anal.;

in tetrahydrofuran byproducts: MgBrCl; N2 atm.; equimolar ratio, stirring (20°C, overnight); filtn., evapn., washing (n-hexane), dissoln. (CH3CN), addn. of HgCl2, stirring (20°C), sublimation (vac., 65°C); elem. anal.;

in acetonitrile N2 atm.; stirring (10 d, room temp.);