dc.contributor.author | Chong, Siew Huay | |
dc.contributor.author | Henderson, William | |
dc.contributor.author | Hor, T.S. Andy | |
dc.coverage.spatial | England | en_NZ |
dc.date.accessioned | 2009-11-27T00:59:26Z | |
dc.date.available | 2009-11-27T00:59:26Z | |
dc.date.issued | 2007 | |
dc.identifier.citation | Chong, S. H., Henderson, W., & Hor, T. S. A. (2007). Stable diplatinum complexes with functional thiolato bridges from dialkylation of [Pt₂(μ-S)₂(P–P)₂] [P–P = 2 × PPh₃, Ph₂P(CH₂)₃PPh₂]. Dalton Transactions, 4008-4016. | en |
dc.identifier.uri | https://hdl.handle.net/10289/3431 | |
dc.description.abstract | The normally robust monoalkylated complexes [Pt₂(μ-S)(μ-SR)(PPh₃)₄]⁺ can be activated towards further alkylation. Dialkylated complexes [Pt₂(μ-SR)₂(P–P)₂]²⁺ (P–P = 2 × PPh₃, Ph₂P(CH₂)₃PPh₂) can be stabilized and isolated by the use of electron-rich and aromatic halogenated substituents R [e.g. 3-(2-bromoethyl)indole and 2-bromo-4 -phenylacetophenone] and 1,3-bis(diphenylphosphino)propane [Ph₂P(CH₂)₃PPh₂ or dppp] which enhances the nucleophilicity of the {Pt₂(μ-S)₂} core. This strategy led to the activation of [Pt₂(μ-S)(μ-SR)(PPh₃)₄]⁺ towards R–X as well as isolation and crystallographic elucidation of [Pt₂(μ-SC₁₀H₁₀N)₂(PPh₃)₄](PF₆)₂ ( 2a), [Pt₂(μ-SCH₂C(O)C₆H₄C₆H₅)₂(PPh₃)₄](PF₆)₂ ( 2b), and a range of functionalized-thiolato bridged complexes such as [Pt₂(μ-SR)₂(dppp)₂](PF₆)₂ [R = –CH₂C₆H₅ ( 8a), –CH₂CHCH₂ ( 8b) and –CH₂CN ( 8c)]. The stepwise alkylation process is conveniently monitored by Electrospray Ionisation Mass Spectrometry, allowing for a direct qualitative comparison of the nucleophilicity of [Pt₂(μ-S)₂(P–P)₂], thereby guiding the bench-top synthesis of some products observed spectroscopically. | en |
dc.language.iso | en | |
dc.publisher | The Royal Society of Chemistry | en_NZ |
dc.subject | chemistry | en |
dc.subject | diplatinum complexes | en |
dc.title | Stable diplatinum complexes with functional thiolato bridges from dialkylation of [Pt₂(μ-S)₂(P–P)₂] [P–P = 2 × PPh₃, Ph₂P(CH₂)₃PPh₂] | en |
dc.type | Journal Article | en |
dc.identifier.doi | 10.1039/b707526j | en |
dc.relation.isPartOf | Dalton Transactions | en_NZ |
pubs.begin-page | 4008 | en_NZ |
pubs.elements-id | 32557 | |
pubs.end-page | 4016 | en_NZ |
pubs.issue | 36 | en_NZ |
pubs.volume | 36 | en_NZ |