Abstract
AbstractComplexes [Cp*2Mo2O5] (Cp* = η5‐C5Me5) and [Cp*2Mo2O4] were investigated by combined on‐line electrochemical (EC) reduction and electrospray‐ionization mass spectrometry (ESI‐MS) techniques in a trifluoroacetic acid buffered water/methanol solution. The reduction products at the larger negative potentials are identical for both compounds. The studies reveal the existence of a wide range of previously unknown di‐ and trinuclear MoV, MoIV, MoIII, and mixed‐valence complexes that were identified on the basis of their masses and characteristic isotope patterns. The structures of the initial compounds and the product of electroreduction with m/z = 713−729 were supported by in situ MSn experiments that allowed the elucidation of the fragmentation pathway for the collision‐induced dissociation. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)
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