[(η5-C5Me5)2Mo2(μ-I)4]+[FeI4]−.[(η5-C5Me5)2Mo2I2(μ-I)2(μ-O)]

John C. Gordon (1) , Phillip E. Fanwick (2) , Rinaldo Poli (1)

1 University of Maryland [College Park]
2 Department of Chemistry [West Lafayette]

The title compound, tetra-[mu]-iodo-bis[([eta]5-pentamethylcyclopentadienyl)molybdenum](Mo-Mo) tetraiodoferrate(III) di-[mu]-iodo-[mu]-oxo-bis[iodo([eta]5-pentamethylcyclopentadienyl)molybdenum](Mo-Mo), forms as a by-product of the thermal decarbonylation of [([eta]5-C5Me5)MoI3(CO)2] in tetrahydrofuran. The source of the iron is an impurity in the [([eta]5-C5Me5)2Mo2(CO)3]2 starting material used to make the triiodide compound. The structure consists of three independent species, namely a [([eta]5-C5Me5)2Mo2([mu]-I)4]+ cation with two pentamethylcyclopentadienylmolybdenum moieties bridged by four iodide ligands, a tetrahedral [FeI4]- anion and a neutral dinuclear species comprising two pentamethylcyclopentadienyliodomolybdenum units bridged by two iodide and an oxo ligand. All three fragments sit on crystallographic mirror planes in the monoclinic space group P21/m.

Domaines: Chimie de coordination

John C. Gordon, Phillip E. Fanwick, Rinaldo Poli. [(η5-C5Me5)2Mo2(μ-I)4]+[FeI4]−.[(η5-C5Me5)2Mo2I2(μ-I)2(μ-O)]. Acta Crystallographica Section C : Crystal Structure Communications [1968-2013], 1996, 52 (5), pp.1098-1101. ⟨10.1107/S0108270195016283⟩. ⟨hal-03514332⟩