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Formation of heterobinuclear Pt-Au complexes by chelate ring-opening of cis-[Pt(κ2-C6R4PPh2)2] (R = H, F)

Mirzadeh N, Bennett MA, Waechtler E, Zhechkov L, Heine T, Bhargava SK (2015)

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Publication Type: Journal article

Publication year: 2015

Journal

Book Volume: 783

Pages Range: 130-134

DOI: 10.1016/j.jorganchem.2015.02.009

Abstract

Mixed metal complexes of the type [Pt(κ²-2-C6R4PPh2) (PPh3) (μ-2-C6R4PPh2)AuCl] (R = H, F) can be prepared by treatment of cis-[Pt(κ²-C6R4PPh2)2] with [AuCl(PPh3)]. Under similar reaction conditions, the trans isomer of [Pt(κ²-C6F4PPh2)2] is unreactive. Computational studies have been performed to provide insights into the reasons for this difference in reactivity. Density Functional Theory (DFT) calculations show that formation of an AuCl adduct of [Pt(κ²-2-C6R4PPh2)2] is favoured over nucleophilic addition of PPh3 to Pt as the initial step of the reaction, and reveal the required energy of the cis and trans isomers of the bis-chelate [Pt(κ²-2-C6R4PPh2)2] in forming the mixed metal Pt-Au compounds. NBO analysis sheds more light on the bonding orbitals of the cis and trans isomers, suggesting that the Pt-P bonds in the cis isomer are more labile.

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How to cite

APA:

Mirzadeh, N., Bennett, M.A., Waechtler, E., Zhechkov, L., Heine, T., & Bhargava, S.K. (2015). Formation of heterobinuclear Pt-Au complexes by chelate ring-opening of cis-[Pt(κ2-C6R4PPh2)2] (R = H, F). Journal of Organometallic Chemistry, 783, 130-134. https://doi.org/10.1016/j.jorganchem.2015.02.009

MLA:

Mirzadeh, Nedaossadat, et al. "Formation of heterobinuclear Pt-Au complexes by chelate ring-opening of cis-[Pt(κ2-C6R4PPh2)2] (R = H, F)." Journal of Organometallic Chemistry 783 (2015): 130-134.

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