in further solvent(s) Cl2S2 is placed in a FEP-trap (dry-box), evacuated and cooled to -196°C, CFCl3 is condensed into trap, mixt. is warmed to room temp., into this mixt. Fe5SNCl2 is condensed (liquid N2), cooling to -100°C, mixt. is allowed to warm; mixt. is stirred under warming to -20°C for several hours, sepn.by fractional condensation in oil vac. in cold traps at -45, -50, -196°C, react. is followed by Raman-spectroscopy;