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BIBTEX RIS

Synthesis and characterisation of [Pt2(μ-S)(μ-I)(PPh3)4]+ – A cationic iodo analogue of the metalloligand [Pt2(μ-S)2(PPh3)4]

2009; Elsevier BV; Volume: 363; Issue: 2 Linguagem: Inglês

10.1016/j.ica.2009.10.013

ISSN

1873-3255

Autores

S.‐W. Audi Fong, Kim Evans, William Henderson, Brian K. Nicholson, T. S. Andy Hor,

Tópico(s)

Metal complexes synthesis and properties

Resumo

Reaction of [Pt2(μ-S)2(PPh3)4] with a number of transition metal–iodo complexes leads to the formation of the cationic iodo analogue [Pt2(μ-S)(μ-I)(PPh3)4]+, identified using electrospray ionisation mass spectrometry (ESI MS). Synthetic routes to this complex were developed, using the reaction of [Pt2(μ-S)2(PPh3)4] with either [PtI2(PPh3)2] or elemental iodine. The complex was characterised by NMR spectroscopy, ESI MS and an X-ray structure determination, which reveals the presence of a planar, disordered {Pt2SI}+ core. Monitoring the iodine reaction by ESI MS allows the identification of various iodine species, including the short-lived intermediate [Pt2(μ-S)2(PPh3)4I]+, which allows a mechanism for the reaction to be proposed.

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