Massenspektrometrische-, dta- und tg-untersuchungen an eisencarbonylchalkogeniden Fe2(CO)6X2 (X  S,Se) und Fe3(CO)9X′2 (X′  S,Se, Te)

Mass spectra of Fe₃(CO)₉X₂ (X  S, Se, Te) and Fe₂(CO)₆X′₂ (X′  S, Se) are recorded and their fragmentation pattern given. The thermal decarbonylation has been studied using DTA/TG methods in the temperature range 25–600°C. The results are compared with those obtained from mass-spectroscopic studies. X-ray and magnetic measurements have been carried out on the residues obtained in the decarbonylation process.