Abstract
A bis(p-toluenethiolato) dinuclear-carbonyl complex with triphenylphosphine coligand, [μ-(SC6H4CH3-p)2Fe2(CO)5(PPh3)], has been synthesized from [μ-(SC6H4CH3-p))2Fe2(CO)6] via facile CO substitution by PPh3 in 33% yield. The structure of [μ-(SC6H4CH3-p)2Fe2(CO)5(PPh3)] has been determined by X-ray crystallography and spectroscopic measurements. In the solid state, the compound adopts a butterfly conformation with anti-orientation of the p-tolyl groups and apical position of triphenylphosphine. Thermogravimetric studies reveal that [μ-(SC6H4CH3-p)2Fe2(CO)5(PPh3)] undergoes sequential decomposition eliminating all of the CO ligands at ca 197 °C, followed by cleavage of the tolyl and PPh3 groups below ca 258 °C.
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Acknowledgements
The authors gratefully acknowledge support for this work from Arkansas Tech University and NASA—Arkansas Space Grant Consortium. NG is grateful for the Missouri State University College of Natural and Applied Sciences continuous support of the XRD laboratory.
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Martinez, J.A., Gerasimchuk, N.N. & Mebi, C.A. Synthesis, crystal structure, and thermal behavior of a diiron toluenethiolate complex with triphenylphosphine coligand. Transit Met Chem 45, 569–575 (2020). https://doi.org/10.1007/s11243-020-00409-5
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DOI: https://doi.org/10.1007/s11243-020-00409-5