allyl-trimethyl-silane in ethylene glycol dimethyl ether under Ar: dissolving of 8.4 mmol MoCl5 in dimethoxyethane; cooling to -78°C; addn. of 17.0 mmol allyltrimethylsilane; pptn.; warming to roomtemperature; storing for 1 h; filtration;; washing with diethyl ether; drying in vac.; cooling the filtrate to -30°C; further pptn.; elem. anal.;;

in ethylene glycol dimethyl ether stirring vigorously for 24h; filtration; evapg. filtrate; recombining dark residue and bisnitrile; treating with fresh DME; stirring for 24h (inert atmosphere); filtration; evapg. solvent; triturating with pentane; stirring for 30 min; pptn.; filtration; washing (pentane); drying; elem. anal.;