anhydrous iron chloride in nitromethane; dichloromethane 0.5 h; Inert atmosphere;

[MoCl5] in dichloromethane T=20°C; Scholl reaction; 24 h;

T=120 - 130°C;

in solid heating the precursor in a sealed quartz ampules under vac. (1E-5 mbar) together with quartz plates at 400°C for 72 h, then at 800 or 650°C for 24 h; detected by mass-spectrometry;