Journal
ORGANOMETALLICS
Volume 30, Issue 17, Pages 4505-4508Publisher
AMER CHEMICAL SOC
DOI: 10.1021/om2006062
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Funding
- Sasol
- EPSRC [EP/H023879]
- Engineering and Physical Sciences Research Council [EP/J003921/1, EP/H023879/1] Funding Source: researchfish
- EPSRC [EP/J003921/1, EP/H023879/1] Funding Source: UKRI
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Activation of the catalytically relevant complex [Cr(CO)(4)(1)](+) (1 = Ph2P(C3H6)PPh2) by Et(3)AI (TEA) leads to formation of the Cr(I) bis-arene complex [Cr(1-bis-eta(6)-arene)](+), as revealed by EPR and DFT calculations. This bis-arene complex is formed by intramolecular rearrangement and coordination of Cr(I) to the ligand phenyl groups in aliphatic solvents following loss of CO, preventing release of Cr(I) into solution. By comparison in aromatic solvents (toluene), the [Cr(bis-tolyl)](+) complex is preferentially formed.
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