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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⁺

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.
Type
Journal Article
Type of thesis
Series
Citation
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.
Date
2009
Publisher
Elsevier
Degree
Supervisors
Rights
This is an author’s accepted version of an article published in the journal: Inorganica Chimica Acta.