A molybdenum metallorganic complex: an XPS investigation to confirm its identity

The oxo-diperoxo complex of molybdenum (VI), Mo(O)(O 2 ) 2 (HMPA) a , (H 2 O) reacts with ClC 6 H 4 CH 2 NH 2 to give the cis-dioxoperoxo complex Mo(O) 2 (O 2 )(ClC 6 H 4 CH 2 NH 2 ) 2 b . The amorphous complex b has been fully characterized by elemental and thermogravimetric analyses, IR, Raman spectroscopy, conductivity, EPR and NMR measurements, and XPS analyses. The results lead to the conclusion that the compound b is an octahedral complex of molybdenum (VI) bearings two oxo-oxygens, a side-on peroxo ligand and two cis-amine ligands.