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Koutsantonis, George
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Publications (4/4 displayed)
- 2011Highly fluorous complexes of nickel, palladium and platinum: solubility and catalysis in high pressure CO2citations
- 2007A Linear Ru-Tl-Ru Complex Obtained from Halide Abstraction : An Example of Metal-Dative Bondingcitations
- 2007Cages on Surfaces : Thiol Functionalisation of CoIII Sarcophagine Complexescitations
- 2003Structural characterization of [Ru3Mo(μ3-η1-CC}(μ-CO)3(CO)2(η-C5H5)5]: a revisitationcitations
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article
A Linear Ru-Tl-Ru Complex Obtained from Halide Abstraction : An Example of Metal-Dative Bonding
Abstract
The simple abstraction of chloride ion from [RuCl(CO)(2)(eta-C5H5)] using [TlBF4] proved problematic, unexpectedly giving a new complex containing linear Ru-Tl-Ru. The complex, [{Ru(CO)(2)(eta-C5H5)}(2)(mu-Tl)(F-BF2-F)](infinity), was polymeric, as determined by a single-crystal X-ray diffraction experiment, in which the thallium centres are bridged by the anions. In an effort to compare the nature of the Tl-Ru bonds, an additional complex was prepared by the reaction of Tl3+ ions with [Ru(CO)(2)(eta-C5H5)](-). The resulting neutral complex, [{Ru(CO)(2)(eta-C5H5)}(3)(mu-Tl)], was also structurally characterised. Quantum chemical calculations of [{Ru(CO)(2)(eta-C5H5)}(2)(mu-Tl)][BF4] suggest that the Tl-Ru bond has ionic character with integrated atomic charges showing that the metal-metal bonding is best represented as Ru-0-Tl-I-Ru-0. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007).