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Heterobinuclear s ‐Indacene Rhodium Complexes: Synthesis and Characterization
Author(s) -
Adams Christopher,
MoralesVerdejo Cesar,
Morales Verónica,
MacLeodCarey Desmond,
Manríquez Juan Manuel,
Chávez Ivonne,
MuñozCastro Alvaro,
Delpech Fabien,
Castel Annie,
Gornitzka Heinz,
RivièreBaudet Monique,
Rivière Pierre,
Molins Elies
Publication year - 2009
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200800920
Subject(s) - chemistry , rhodium , bimetallic strip , ligand (biochemistry) , cyclic voltammetry , crystal structure , crystallography , stereochemistry , medicinal chemistry , catalysis , organic chemistry , electrochemistry , biochemistry , receptor , electrode
The monometallic complexes [Cp*M(2,6‐diethyl‐4,8‐dimethyl‐1‐hydroindacenide)] [M = Fe ( 1 ), Ru ( 2 ), Co ( 3 )] and the bimetallic species anti ‐[Cp*M(2,6‐diethyl‐4,8‐dimethyl‐ s ‐indacenediide)Rh(η 4 ‐cod)] [M = Fe ( 4a ), Ru ( 5a ), Co ( 6a )] together with syn ‐[Cp*Ru(2,6‐diethyl‐4,8‐dimethyl‐ s ‐indacenediide)Rh(η 4 ‐cod)] ( 5b ) were synthesized and characterized spectroscopically and in the case of complexes 1 and 5b by X‐ray diffraction. 13 C and 103 Rh NMR spectroscopic studies suggest that the bonding mode of the rhodium center to the s ‐indacenediide ligand can be described as an intermediate between η 3 ‐ and η 5 ‐coordination, but closer to an η 3 bonding mode when compared to indenyl–Rh complexes. This result was confirmed by the crystal structure of 5b , as evidenced by the slippage of the rhodium atom towards the periphery of the ligand. Cyclic voltammetry studies revealed intermetallic communication through the fused‐ring ligand exclusively in the cases of 5a and 6a .(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)