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In 6.0 g of [BMIM]+PF−6 (1b) 0.04 mmol of the
respective ligand and 0.02 mmol of Rh(CO)2acac was
dissolved at 80 °C. The solution was transferred into a
75 ml steel autoclave with a dropping funnel and a
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1 h the autoclave was cooled to room
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7. Supplementary material
Crystallographic data for the structural analysis have
been deposited with the dditional crystallographic data
(excluding structure factors) have been deposited with
the Cambridge Crystallographic Data Centre, CCDC
no. 153734 for compound 4. Copies of this information
data may be obtained free of charge from The Director,
CCDC, 12 Union Road, Cambridge CB2 IEZ, UK
(Fax: +44-1223-336033; e-mail: deposit@ccdc.cam.
ac.uk or www: http://www.ccdc.cam.ac.uk).
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(d) Dr. G. Heßler, Caldic, Germany, GmbH & Co, Du¨sseldorf is
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Acknowledgements
This work was supported by the Deutsche
Forschungsgemeinschaft and the Fonds der Chemis-
chen Industrie. Celanese Chemicals Europe GmbH and
Aventis Research GmbH are thanked for financial
support.
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