Complexation and C–H bond activation of 1,5-cyclooctadiene on triosmium carbonyl clusters

Liu, Yu‐Chiao; Yeh, Wen-Yann; Lee, Gene‐Hsiang; Peng, Shie‐Ming

doi:10.1016/j.jorganchem.2004.03.018

Cited by 6 publications

(1 citation statement)

References 17 publications

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“…As far as we know, this structural feature has no precedent in the literature, the most similar examples being a (μ-hydroxy)(μ-alkyne) bridging system in a pentanuclear ruthenium cluster and a (μ-hydroxy)(μ-allenylidene) trinuclear osmium cluster . Notwithstanding, a good number of vinyl groups acting as bridging ligands between two transition metals have been reported, − although the examples containing platinum are really scarce, − in particular, those referring to homopolynuclear derivatives. ,, It should be noted that recently a (μ-hydride)(μ-vinyl) dinuclear intermediate species has been proposed in the formation of the (μ-alkylidene) complex [Pt 2 (dppm) 2 (μ-H)(μ-CHCH 2 Ph)](BF 4 ) 5 ORTEP view of [ cis,cis -(PPh 3 ) 2 Pt{μ-1κ C α :η 2 -CHCHC(OH)Ph 2 }(μ-OH)Pt(C 6 F 5 ) 2 ] ( 5f ).…”

Section: Resultsmentioning

confidence: 99%

Rearrangement or C−H Activation Processes Promoted by Reaction with the Solvate [cis-Pt(C₆F₅)₂(thf)₂]

2007

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A new series of functionalized (μ-hydride)(μ-acetylide) isomeric derivatives [trans-(PPh3)(C6F5)Pt(μ-H)(μ-1κC α:η2-C⋮CR)Pt(C6F5)(PPh3)] (3) and [cis,cis-(PPh3)2Pt(μ-H)(μ-1κCα:η2-C⋮CR)Pt(C6F5)2] (4) (R = (4-CH3)C6H4, a; (4-CN)C6H4, b; CMeCH2, c; C(OH)Me2, d; C(OH)EtMe, e; C(OH)Ph2, f) have been prepared by reaction in mild conditions of the disolvated [cis-Pt(C6F5)2(thf)2] with the corresponding Pt(II) [trans-PtH(C⋮CR)(PPh3)2] (1) or Pt(0) [Pt(η2-HC⋮CR)(PPh3)2] (2) isomers. The course of these reactions seems to be rather general, but in the case of the diphenylhydroxy precursors is strongly influenced by an easy gem (4f) to trans (3f) isomerization and the presence of water, which leads to the formation of the unexpected (μ-hydroxy)(μ-vinyl) complex [cis,cis-(PPh3)2Pt{μ-1κC α:η2-CHCHC(OH)Ph2}(μ-OH)Pt(C6F5)2] (5f). Control of the latter reaction has allowed us to detect the mixed-valence intermediate [cis,cis-(PPh3)2Pt{μ-η2:η2-HC⋮C(OH)Ph2}Pt(C6F5)2(thf)] (6f). Starting from [Pt(η2-HC⋮C5H4N-4)(PPh3)2] (2g) and [cis-Pt(C6F5)2(thf)2] only the trinuclear mixed-valence adduct [{(PPh3)2Pt(μ-η2:2κN-HC⋮C5H4N-4)}2{cis-Pt(C6F5)2}] (7g) is obtained.

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Section: Resultsmentioning

confidence: 99%

Rearrangement or C−H Activation Processes Promoted by Reaction with the Solvate [cis-Pt(C₆F₅)₂(thf)₂]

2007

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The Aromatization of C₅ Rings on a Heteronuclear Cluster

Tan

Leong

2007

Eur J Inorg Chem

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The reaction of the heteronuclear cluster RuOs3(μ‐H)2(CO)13 with saturated and unsaturated C5 rings led to the aromatization of the rings to afford the clusters RuOs3(μ‐H)(CO)9(μ‐CO)2(η5‐C5R4R′). However, the reaction with cyclopentene gave the cluster RuOs3(μ‐H)3(CO)11(μ,η1:η2‐C5H7) via C–H activation of an sp2 carbon instead. Thermolysis of two of the products, RuOs3(μ‐H)(CO)9(μ‐CO)2(η5‐Cp′) and RuOs3(μ‐H)(CO)9(μ‐CO)2(η5‐C5H4SiMe3), led to their isomerization to butterfly clusters.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)

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Syntheses and X-ray structures of the bridging and chelating isomers of Os3(CO)10(dmpe)

2006

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Complexation and C–H bond activation of 1,5-cyclooctadiene on triosmium carbonyl clusters

Cited by 6 publications

References 17 publications

Rearrangement or C−H Activation Processes Promoted by Reaction with the Solvate [cis-Pt(C₆F₅)₂(thf)₂]

Rearrangement or C−H Activation Processes Promoted by Reaction with the Solvate [cis-Pt(C₆F₅)₂(thf)₂]

The Aromatization of C₅ Rings on a Heteronuclear Cluster

Syntheses and X-ray structures of the bridging and chelating isomers of Os3(CO)10(dmpe)

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Complexation and C–H bond activation of 1,5-cyclooctadiene on triosmium carbonyl clusters

Cited by 6 publications

References 17 publications

Rearrangement or C−H Activation Processes Promoted by Reaction with the Solvate [cis-Pt(C6F5)2(thf)2]

Rearrangement or C−H Activation Processes Promoted by Reaction with the Solvate [cis-Pt(C6F5)2(thf)2]

The Aromatization of C5 Rings on a Heteronuclear Cluster

Syntheses and X-ray structures of the bridging and chelating isomers of Os3(CO)10(dmpe)

Contact Info

Product

Resources

About

Rearrangement or C−H Activation Processes Promoted by Reaction with the Solvate [cis-Pt(C₆F₅)₂(thf)₂]

Rearrangement or C−H Activation Processes Promoted by Reaction with the Solvate [cis-Pt(C₆F₅)₂(thf)₂]

The Aromatization of C₅ Rings on a Heteronuclear Cluster