Further studies on the coordination chemistry of [Pt₂(μ-S)₂(PPh₃)₄] towards indium(III) substrates

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dc.contributor.authorHenderson, William
dc.contributor.authorOliver, Allen G.
dc.date.accessioned2011-08-29T02:48:08Z
dc.date.available2011-08-29T02:48:08Z
dc.date.issued2011
dc.description.abstractThe reactivity of the metalloligand [Pt₂(μ-S)₂(PPh₃)₄] towards a variety of indium(III) substrates has been explored. Reaction with excess In(NO₃)₃ and halide (KBr or NaI) gave the four-coordinate adducts [Pt₂(μ-S)₂(PPh₃)₄InX₂]⁺[InX₄]⁻ (X = Br, I). An X-ray structure determination on the iodo complex revealed a slightly distorted tetrahedral coordination geometry at indium. In contrast, reaction of [Pt₂(μ-S)₂(PPh₃)₄] with indium(III) chloride was more complex; the ion [Pt₂(μ-S)₂(PPh₃)₄InCl₂]⁺ was initially observed in solution (using ESI mass spectrometry), and isolated as its BPh₄⁻ salt. Analysis of [Pt₂(μ-S)₂(PPh₃)₄InCl₂]⁺[BPh₄]⁻ by ESI MS showed the parent cation when analysed in MeCN solution. However in solutions containing methanol, partial solvolysis occurred to give the di-indium species [{Pt₂(μ-S)₂(PPh₃)₄InCl(OMe)}₂]²⁺ (proposed to contain an In₂(μ-OMe)₂ unit with five-coordinate indium) and its fragment ion [Pt₂ (μ-S)₂(PPh₃)₄InCl(OMe)]⁺. Reaction of [Pt₂(μ-S)₂(PPh₃)₄] with InCl₃•3H₂O, 8-hydroxyquinoline (HQ) and trimethylamine in methanol gave the adduct [Pt₂(μ-S)₂(PPh₃)₄InQ₂]⁺, isolated as its PF₆⁻ salt. The same cationic complex is formed when [Pt₂(μ-S)₂(PPh₃)₄] is reacted with InQ₃ in methanol, but in this case the product is contaminated with the mononuclear complex [(Ph₃P)₂PtQ]⁺ formed by disintegration of the trinuclear complex [Pt₂(μ-S)₂(PPh₃)₄InQ₂]⁻ with byproduct Q⁻. [(Ph₃P)₂PtQ]⁺BPh₄⁻ was independently prepared from cis-[PtCl₂(PPh₃)₂] and HQ/Me₃N, and is the first example of a platinum 8-hydroxyquinolinate complex containing phosphine ligands.en_NZ
dc.identifier.citationHenderson, W. & Oliver, A.G. (2011). Further studies on the coordination chemistry of [Pt₂(μ-S)₂(PPh₃)₄] towards indium(III) substrates. Inorganica Chimica Acta, 375(1), 248-255.en_NZ
dc.identifier.doi10.1016/j.ica.2011.05.014en_NZ
dc.identifier.urihttps://hdl.handle.net/10289/5636
dc.language.isoen
dc.publisherElsevieren_NZ
dc.relation.isPartOfInorganica Chimica Actaen_NZ
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S0020169311004609en_NZ
dc.subjectPlatinum complexesen_NZ
dc.subjectindium complexesen_NZ
dc.subjectsulfide ligandsen_NZ
dc.subjectcrystal structureen_NZ
dc.subjectelectrospray ionisation mass spectrometryen_NZ
dc.subjectligand exchangeen_NZ
dc.titleFurther studies on the coordination chemistry of [Pt₂(μ-S)₂(PPh₃)₄] towards indium(III) substratesen_NZ
dc.typeJournal Articleen_NZ
pubs.begin-page248en_NZ
pubs.elements-id36294
pubs.end-page255en_NZ
pubs.issue1en_NZ
pubs.volume375en_NZ
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