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- Publisher Website: 10.1002/asia.200600060
- Scopus: eid_2-s2.0-33748636025
- PMID: 17441062
- WOS: WOS:000243157500030
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Article: Methylation of [Pt2(μ-SR)(μ-S)(PPh3) 4]: En route to mixed-thiolato bridged complexes
Title | Methylation of [Pt2(μ-SR)(μ-S)(PPh3) 4]: En route to mixed-thiolato bridged complexes |
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Authors | |
Keywords | Dithiolate Sulfur ligands Platinum Phosphines Alkylation |
Issue Date | 2006 |
Citation | Chemistry - An Asian Journal, 2006, v. 1, n. 1-2, p. 264-272 How to Cite? |
Abstract | Sequential and independent alkylation of [Pt2(μ-S) 2(PPh3)4] by RX followed by methylation with Me2SO4 led to the first successful isolation of novel diplatinum complexes [Pt2(μ-SR)(μ-SCH3)(PPh 3)4](PF6)2 (3) (R = CH 2C6H5 (a), CH2CHCH2 (b), C5H10CO2CH2CH3 (c), C2H4CO2-CH2CH3 (d), CH2CH2CN (e), C2H4CH-(O) 2C2H4 (f), and C2H 4SC6H5 (g)) with asymmetric thiolato bridges. The synthetic methodology can tolerate a range of electronically and sterically contrasting thiolate substituents with different chemical functionalities. The X-ray crystal structures of 3a-c, g confirm the unusual heterodialkylation with two different thiolato bridging ligands in a syn-exo conformation. A secondary product [Pt2(μ-SC2H4SC6H 5) (μ-SCH3)(PPh3](PF6) 2 (4), which arises from intramolecular phosphine displacement by the thio pendant at the neighboring SC2H4SC6H 5 bridge, has been trapped and characterized. This is an unusual diplatinum complex with three different bridging thio ligands and three different phosphines. The heteroalkylation is screened in situ by ESI-MS, and the resultant spectral data provide a convenient guide for one-pot syntheses of {M2(SR)(SR′)} from{M2S}. The isolation and X-ray crystal structure of a homoalkylated analogue [Pt2(μ-SCH 3)2(PPh3)4](PF6) 2 (6) is included for comparison. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA. |
Persistent Identifier | http://hdl.handle.net/10722/219518 |
ISSN | 2023 Impact Factor: 3.5 2023 SCImago Journal Rankings: 0.846 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Chong, Siew Huay | - |
dc.contributor.author | Koh, Lip Lin | - |
dc.contributor.author | Henderson, William | - |
dc.contributor.author | Hor, T. S Andy | - |
dc.date.accessioned | 2015-09-23T02:57:17Z | - |
dc.date.available | 2015-09-23T02:57:17Z | - |
dc.date.issued | 2006 | - |
dc.identifier.citation | Chemistry - An Asian Journal, 2006, v. 1, n. 1-2, p. 264-272 | - |
dc.identifier.issn | 1861-4728 | - |
dc.identifier.uri | http://hdl.handle.net/10722/219518 | - |
dc.description.abstract | Sequential and independent alkylation of [Pt2(μ-S) 2(PPh3)4] by RX followed by methylation with Me2SO4 led to the first successful isolation of novel diplatinum complexes [Pt2(μ-SR)(μ-SCH3)(PPh 3)4](PF6)2 (3) (R = CH 2C6H5 (a), CH2CHCH2 (b), C5H10CO2CH2CH3 (c), C2H4CO2-CH2CH3 (d), CH2CH2CN (e), C2H4CH-(O) 2C2H4 (f), and C2H 4SC6H5 (g)) with asymmetric thiolato bridges. The synthetic methodology can tolerate a range of electronically and sterically contrasting thiolate substituents with different chemical functionalities. The X-ray crystal structures of 3a-c, g confirm the unusual heterodialkylation with two different thiolato bridging ligands in a syn-exo conformation. A secondary product [Pt2(μ-SC2H4SC6H 5) (μ-SCH3)(PPh3](PF6) 2 (4), which arises from intramolecular phosphine displacement by the thio pendant at the neighboring SC2H4SC6H 5 bridge, has been trapped and characterized. This is an unusual diplatinum complex with three different bridging thio ligands and three different phosphines. The heteroalkylation is screened in situ by ESI-MS, and the resultant spectral data provide a convenient guide for one-pot syntheses of {M2(SR)(SR′)} from{M2S}. The isolation and X-ray crystal structure of a homoalkylated analogue [Pt2(μ-SCH 3)2(PPh3)4](PF6) 2 (6) is included for comparison. © 2006 Wiley-VCH Verlag GmbH & Co. KGaA. | - |
dc.language | eng | - |
dc.relation.ispartof | Chemistry - An Asian Journal | - |
dc.subject | Dithiolate | - |
dc.subject | Sulfur ligands | - |
dc.subject | Platinum | - |
dc.subject | Phosphines | - |
dc.subject | Alkylation | - |
dc.title | Methylation of [Pt2(μ-SR)(μ-S)(PPh3) 4]: En route to mixed-thiolato bridged complexes | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1002/asia.200600060 | - |
dc.identifier.pmid | 17441062 | - |
dc.identifier.scopus | eid_2-s2.0-33748636025 | - |
dc.identifier.volume | 1 | - |
dc.identifier.issue | 1-2 | - |
dc.identifier.spage | 264 | - |
dc.identifier.epage | 272 | - |
dc.identifier.eissn | 1861-471X | - |
dc.identifier.isi | WOS:000243157500030 | - |
dc.identifier.issnl | 1861-471X | - |