Krauss, Hannes and Balázs, Gábor and Bodensteiner, Michael and Scheer, Manfred (2010) The Potential of a cyclo-As5 Ligand Complex in Coordination Chemistry. Chemical Science 1 (3), pp. 337-342.
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The reaction of [Cp*Fe(η5-As5)] (1) with CuI halides leads to the formation of the 1D-polymeric compounds [3(CH3CN)]n (X = Cl (2), Br (3)), n (4) and n (5). The polymers are built up by the π-coordination of the cyclo-As5 ring to (CuX)n moieties forming discrete units, which are additionally linked by weak intermolecular AsCu σ-interactions. Only polymer 4 is an exception revealing a (CuI)n ladder which is alternately coordinated by molecules of 1. In a side arm of polymer 5 a novel η5-coordination of a Cu atom below the cyclo-As5 ring is found, showing an unprecedented heteroleptic triple-decker sandwich complex with a polyarsenic middle-deck. All products are characterised by single crystal X-ray structure analysis. To define the differences in the coordination behaviour of 1 and its phosphorus analogue [Cp*Fe(η5-P5)] (1a), DFT calculations are described.
|Date:||1 September 2010|
|Institutions:||Chemistry and Pharmacy > Institut für Anorganische Chemie > Chair Prof. Dr. Manfred Scheer|
|Subjects:||500 Science > 540 Chemistry & allied sciences|
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Yes|
|Deposited On:||24 Feb 2011 13:23|
|Last Modified:||24 Feb 2011 13:23|