The hapticity of η-indenyl complexes: molecular structures of [(η5-C9R7)Rh(η4-cod)](R = H, Me)(cod = cyclo-octa-5-diene)

Abstract
The molecular structures of [(η5-C9R7)Rh(η4-cod)][R = H (2); R = Me (3); cod = cyclo-octa-1,5-diene] are reported along with a discussion of the distinction between η5- and η3-indenyl co-ordination modes; a recent assertion that co-ordination of Cr(CO)3 to the benzo ring of (2) induces enhanced ground-state slippage of the Rh(η4-cod) moiety is not borne out by the structures of (2) and (3).

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