Dithiolate and diselenolate complexes [Pt₂(μ-ECH₂CH CHCH₂E)(PPh₃)₄]²⁺(E = S, Se): Synthesis, characterisation and mass spectrometric formation of the dichalcogenide species [Pt₂(μ-E₂)(PPh₃)₄]²⁺

Devoy, Sarah M.; Henderson, William; Nicholson, Brian K.; Hor, T.S. Andy

doi:10.1016/j.ica.2008.06.005

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10.1016/j.ica.2008.06.005

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Devoy, S.M., Henderson, W., Nicholson, B.K. & Hor, T.S.A. (2009). Dithiolate and diselenolate complexes [Pt₂(μ-ECH₂CH CHCH₂E)(PPh₃)₄]²⁺(E = S, Se): Synthesis, characterisation and mass spectrometric formation of the dichalcogenide species [Pt₂(μ-E₂)(PPh₃)₄]²⁺. Inorganica Chimica Acta, 362(4), 1194-1198.

Permanent Research Commons link: https://hdl.handle.net/10289/2825

Abstract

The reactions of [Pt₂(μ-E)₂(PPh₃)₄] (E = S, Se) with cis-1,4-dichlorobut-2-ene (cis-ClCH2CH=CHCH₂Cl) gives the dichalcogenolate complexes [Pt₂(μ-ECH₂CH=CHCH₂E)(PPh₃)₄]²⁺; an X-ray structure determination on the thiolate complex was carried out. The complexes give the expected dications in ESI mass spectra recorded at very low cone voltages, but at moderate cone voltages undergo facile fragmentation via a retro-Diels-Alder reaction and loss of 1,3-butadiene, giving the dichalcogenide species [Pt₂(μ-E₂)(PPh₃)₄]²⁺. Analogous species containing bidentate phosphine or arsine ligands have been previously generated electrochemically, and studied theoretically.

Date

2009

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Journal Article

Publisher

Elsevier

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This is an author’s accepted version of an article published in the journal: Inorganica Chimica Acta.

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