Abstract
Cyclic voltammetry studies show that [(C5Me5)Rh(C4Me4S)]2+ undergoes two reversible one-electron reductions at low potentials. The reduced product was synthesized by cobaltocene reduction and was characterized as [(η5-C5Me5)Rh(η4-C 4Me4S)]. 1H and 13C NMR spectroscopic results are consistent with a symmetrical, reduced thiophene ligand. An X-ray crystallographic study confirms that the reduced complex contains a nonplanar η4-thiophene ligand with an uncoordinated sulfur atom. The reduced complex reacts with Fe3(CO)12 to give (C5Me5)RhC4Me4Fe(CO)3 which is analogous to a major product in the Fe3(CO)12 desulfurization of thiophenes. Electron-transfer activation is proposed to be relevant to the desulfurization of thiophenes by metal surfaces.
Original language | English (US) |
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Pages (from-to) | 2739-2741 |
Number of pages | 3 |
Journal | Organometallics |
Volume | 8 |
Issue number | 11 |
DOIs | |
State | Published - Nov 1989 |
ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry