Abstract
Reaction of Cp2*Mo2O5 with HSCH2CH2COOH in acidic (by CF3COOH) 50:50 MeOH-H2O solvent at room temperature yields compound Cp2*Mo2(μ-O)(μ-SCH2CH2CO2)2, a dinuclear diamagnetic MoIV compound with a two-leg-sharing bis(four-legged piano stool) structure and a Mo-Mo distance of 2.6833(6) Å. A reaction monitoring by ESI MS shows the formation of an intermediate 18 mass units heavier, interpreted as a dihydroxo analogue. Electrochemistry shows a reversible, pH independent oxidation process and an irreversible, pH-dependent reduction process. Contrary to a recently published analogous reaction with the closely related HSCH2COOH substrate, this process does not lead to C-S bond cleavage.
Original language | English |
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Pages (from-to) | 2599-2605 |
Number of pages | 7 |
Journal | Journal of Organometallic Chemistry |
Volume | 692 |
Issue number | 12 |
DOIs | |
State | Published - 15 May 2007 |
Bibliographical note
Funding Information:We are grateful to the European Commission for funding of this work through the AQUACHEM Research Training Network (Project No. MRTN-CT-2003-503864). Supplemental support by a Bosphorus bilateral Programme of Integrated Actions, co-sponsored by French Ministry of Foreign Affairs in France and by TUBITAK in Turkey (TBAG-U/142(105T265)) is also gratefully acknowledged. The Israeli group is grateful to the Israel Science foundation for support.
Keywords
- Alkylsulfido ligands
- Aqueous organometallic chemistry
- Carboxylato ligands
- Molybdenum
- Pentamethylcyclopentadienyl ligands