Übergangsmetall-substituierte VB Elementsysteme, 7. : Übergangsmetall-Antimon(III)bromide / Transition Metal-Antimony(III) Bromides

The reaction of SbBr₃ with the complex metal carbonyl anions [π-C₅H₆(CO)₃M]Na (M = Mo, W) leads to the formation of transition metal antimony bromides π-C₅H₅(CO)₃M-Sb-Br₂, which can be further metallated, yielding the stable species [XXX]All bromine substituted transition metal stibines prove to be excellent coordinating ligands and can easily be introduced into activated metal carbonyls. The interaction of π-C₅H₅(CO)₃M-SbBr₂, with bromine results in a quantitative Sb-M bond cleavage, presumably via primary formation of pentavalent intermediates. All new compounds are fully characterized by means of IR, ¹H NMR and mass spectroscopy.