Double insertion of coordinated phosphanylalkyne ligands into a Pt- C6F5 bond

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Abstract

Enhanced reactivity is shown by uncoordinated C≡C bonds in the proximity of a metal in phosphanylacetylene complexes. cis- [Pt(C6F5)2(thf)2] reacts with [M(C6F5)2-(PPh2C≡CPh)2] (M = Pt, Pd) to form binuclear complexes containing the novel 2,3-bis(diphenylphosphanyl)- 1,3-butadien-1-yl bridging ligand. Substitution of the solvent ligands with, for example, PPh2H (see picture) provides species that could be characterized by X-ray crystallography.

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Charmant, J. P. H., Forniés, J., Gómez, J., Lalinde, E., Moreno, M. T., Orpen, A. G., & Solano, S. (1999). Double insertion of coordinated phosphanylalkyne ligands into a Pt- C6F5 bond. Angewandte Chemie - International Edition, 38(20), 3058–3061. https://doi.org/10.1002/(SICI)1521-3773(19991018)38:20<3058::AID-ANIE3058>3.0.CO;2-7

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