in dichloromethane-d2 byproducts: KBr; The soln. of reagents in CD2Cl2 was heated in a sealed tube;; not sepd., detected by NMR spectra;;

in diethyl ether C6H5CH2Br was added to a soln. of complex in ether, stirred for 0.5 h (inert atm.);; filtered, evapd. in vac., the residue was distilled (25°C, <1E-3mm) into a a dry ice cooled flask;;

in dichloromethane-d2 byproducts: KBr; The soln. of reagents in CD2Cl2 was heated in a sealed tube;; not sepd., detected by NMR spectra;;