Monomeric molybdenum(V) complexes. 4. The structure of tetraphenylarsonium oxodichloro(N-2-oxophenylsalicylideniminato)molybdate(V), [Ph4As] [MoOCl2(SalphO)]

Synthesis, X-ray structure and spectroscopic studies of Mo(O)2(3,5-di-tert-Busap)(EtOH)

A new six-co-ordinate cis-dioxomolybdenum(VI) complex [Mo(O)2 (3,5-di-tert-Busap) (EtOH)], (where 3,5-di-tert-Busap2- = the Schiff base dianion 3,5-di-tert-butyl-N-salicylidene-2-aminophenolate), has been prepared. The complex is characterised by IR, 1H and 13C NMR and UV/vis spectroscopy and is stable to air, but above 413 K or in non-co-ordinating solvents loses an ethanol molecule, forming an dimeric compound with an unsymmetrical dioxygen bridge as indicated by IR spectroscopy.

Unusual activation pathways of amines in the reactions with molybdenum pentachloride

Both single electron reduction and oxidation of Mo(v) guide the activation of a series of aliphatic amines when these are allowed to react with MoCl₅.