High oxidation state aqueous organometallics: Synthesis and structure of a dinuclear oxo(pentamethylcyclopentadienyl)acetato complex of molybdenum(IV), [Cp*Mo(μ-O)(μ-O2CCH3)]2

Demirhan F., Richard P., Poli R.

Inorganica Chimica Acta, vol.347, pp.61-66, 2003 (SCI-Expanded, Scopus) identifier identifier

  • Publication Type: Article / Article
  • Volume: 347
  • Publication Date: 2003
  • Doi Number: 10.1016/s0020-1693(02)01439-1
  • Journal Name: Inorganica Chimica Acta
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.61-66
  • Keywords: aqueous organometallic chemistry, molybdenum, half-sandwich complexes, metal-metal bonding, oxo ligands
  • Manisa Celal Bayar University Affiliated: Yes

Abstract

The zinc reduction of Cp*2Mo2O5 in a MeOH-H2O mixture in the presence of acetic acid affords the diamagnetic dinuclear compound [Cp*MoO(O2CCH3)]2. An X-ray structural investigation reveals a novel dioxo- and diacetato-bridged structure, with a relatively strong metal-metal bond [2.5524(3) Å]. The compound exhibits a reversible one-electron oxidation process in the cyclic voltammogram. A comparison with other related structures reveals the effect of the electric charge on the mononuclear or dinuclear structural choice. © 2002 Elsevier Science B.V. All rights reserved.