The reductive activation of [M5C(CO)15](M = Ru or Os) and subsequent reactions of the dianion [Os5C(CO)14]2–, carbonylation of [M5C(CO)15](M = Ru or Os), and the crystal structures of [Os5C(CO)16], [N(PPh3)2]2[Os5C(CO)14], and [Os5C(CO)14{Au(PPh3)}2]

Johnson, Brian F. G.; Lewis, Jack; Nelson, William J. H.; Nicholls, J. Nicola; Puga, J.; Raithby, Paul R.; Rosales, María J.; Schröder, Martin; Vargas, Maria D.

doi:10.1039/dt9830002447

Cited by 46 publications

(22 citation statements)

References 6 publications

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“…All clusters were synthesized using a procedure outlined in the literature [30–31 33–36] except for the cluster Ru 6 C(CO) 16 (Au{PPh 3 }) 2 ( 5 ). This cluster was prepared by reacting 100 mg of (PPN) 2 [Ru 6 C(CO) 16 ] (0.0466 mmol) with 2 equiv of Au(PPh 3 )Cl (46.1 mg, 0.0933 mmol) in 10 mL of dichloromethane.…”

Section: Methodsmentioning

confidence: 99%

Heterometal nanoparticles from Ru-based molecular clusters covalently anchored onto functionalized carbon nanotubes and nanofibers

Vidick¹,

Ke²,

Devillers³

et al. 2015

Beilstein J. Nanotechnol.

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SummaryHeterometal clusters containing Ru and Au, Co and/or Pt are anchored onto carbon nanotubes and nanofibers functionalized with chelating phosphine groups. The cluster anchoring yield is related to the amount of phosphine groups available on the nanocarbon surface. The ligands of the anchored molecular species are then removed by gentle thermal treatment in order to form nanoparticles. In the case of Au-containing clusters, removal of gold atoms from the clusters and agglomeration leads to a bimodal distribution of nanoparticles at the nanocarbon surface. In the case of Ru–Pt species, anchoring occurs without reorganization through a ligand exchange mechanism. After thermal treatment, ultrasmall (1–3 nm) bimetal Ru–Pt nanoparticles are formed on the surface of the nanocarbons. Characterization by high resolution transmission electron microscopy (HRTEM) and high angle annular dark field scanning transmission electron microscopy (HAADF-STEM) confirms their bimetal nature on the nanoscale. The obtained bimetal nanoparticles supported on nanocarbon were tested as catalysts in ammonia synthesis and are shown to be active at low temperature and atmospheric pressure with very low Ru loading.

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Section: Methodsmentioning

confidence: 99%

Heterometal nanoparticles from Ru-based molecular clusters covalently anchored onto functionalized carbon nanotubes and nanofibers

Vidick¹,

Ke²,

Devillers³

et al. 2015

Beilstein J. Nanotechnol.

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“…Heptanuclear clusters with Au-Fe [160,306,[370][371][372][373]394], Au-Ru [264,319,328,[374][375][376][377][378][379][380][381][382][383][384][385][386][387][388][389][390] and Au-Os bonds [327,[391][392][393] have also been reported. Most common structures are based on C-centered [160,306,374,375] or B-centered [376][377][378][379] [160], (b) (Ph 3 P)AuOs 6 (m 6 -P)(CO) 18 253 [391], (c) [(Et 3 P)Au] 2 Fe 5 (m 6 -C)(CO) 14 254 [370], (d) (dppm)Au 2 Os 4 Ru(h 6 -C 6 H 6 )(CO) 12 [379].…”

Section: The Trimetallic Complex [Net 4 ][(Ph 3 P)aufe(co) 4 W(co) 5 mentioning

confidence: 99%

Gold–Heterometal Interactions and Bonds

Silvestru

2008

Modern Supramolecular Gold Chemistry

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“…Thus,. the further addition of carbon monoxide or weakly coordinated acetonitrile under mild conditions afforded the wingtip-bridged butterfly clusters Ru5(fl5-C)(CO)l 6 and Rus(/xs-C)(CO)]5(NCMe), respectively [ 3 ]. The addition of Au(PPh3)CI to R%(/15-C)(CO)Is formed Rus(/zs-C)(CO)]a(/x-C1)(/~-AuPPh3) which then eliminated one mole of CO to form Rus(/~5-C)(CO)13(/2-C1)(/~-AuPPh3) where bridging chlorine ligand functions as a three-electron donor [4].…”

Section: Way ~ Almentioning

confidence: 99%

“…2 Department of Chemistry and Instrumentation Center, National Taiwan University~ Taipei 10764, Taiwan, Republic of China. 3 To whom all correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

New electron-deficient alkene and alkyne derivatives of Ru5(μ5-C)(CO)15: The syntheses and crystal structure analyses of Ru5(μ5-C)(CO)13 [C2H2(CO2Me)2] and Ru5(μ5-C)(CO)15 [C2(CO2Me)2]

et al. 1997

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Treatment of carbido cluster Rus(/zs-C)(CO)~5 with Me3NO in acetonitrile solution followed by addition of dimethyl maleate or dimethyl acetylene dicarboxylate affords new clusters Rus(/zs-C)(CO)~3[C2H2(CO2Me)2] (1) and Rus(/zs-C)(CO)Is[C2(CO2Me)2] (2), respectively. Single crystal X-ray structural studies reveal that both complexes contain a wingtip-bridged butterfly pentametallic skeleton. In complex 1 the maleate fragment is coordinated to one wingtip Ru atom through its carbon-carbon double bond and to the adjacent Ru atom by the formation of two O ~ Ru dative bonding interactions, while the acetylene dicarboxylate fragment in 2 is best considered as a cis-dimetaUated alkene, linking one hinge Ru atom and the nearby Ru atom at the bridged position.

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The reductive activation of [M₅C(CO)₁₅](M = Ru or Os) and subsequent reactions of the dianion [Os₅C(CO)₁₄]^2–, carbonylation of [M₅C(CO)₁₅](M = Ru or Os), and the crystal structures of [Os₅C(CO)₁₆], [N(PPh₃)₂]₂[Os₅C(CO)₁₄], and [Os₅C(CO)₁₄{Au(PPh₃)}₂]

Abstract: Hochdruck‐IR‐spektroskopische Untersuchungen zeigen, daß der Pentadecacarbonyl‐Ru‐Cluster (IIa) bei relativ milden Bedingungen CO unter Bildung des Hexadecacarbonyl‐Derivats (Ia) addiert, das bei 90°C und 80 at den Ausgangscluster (IIa) zurückbildet.

Cited by 46 publications

References 6 publications

Heterometal nanoparticles from Ru-based molecular clusters covalently anchored onto functionalized carbon nanotubes and nanofibers

Heterometal nanoparticles from Ru-based molecular clusters covalently anchored onto functionalized carbon nanotubes and nanofibers

Gold–Heterometal Interactions and Bonds

New electron-deficient alkene and alkyne derivatives of Ru5(μ5-C)(CO)15: The syntheses and crystal structure analyses of Ru5(μ5-C)(CO)13 [C2H2(CO2Me)2] and Ru5(μ5-C)(CO)15 [C2(CO2Me)2]

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