Germanium-rich pentaruthenium carbonyl clusters including Ru5(CO)11(μ-GePh2)4 (μ5-C) and its reactions with hydrogen

Richard D. Adams; Burjor Captain; Wei Fu

doi:10.1021/ic020655w

Germanium-rich pentaruthenium carbonyl clusters including Ru₅(CO)₁₁(μ-GePh₂)₄ (μ₅-C) and its reactions with hydrogen

Richard D. Adams, Burjor Captain, Wei Fu

Research output: Contribution to journal › Article › peer-review

32 Scopus citations

Abstract

The reaction of Ru₅(CO)₁₅(μ₅-C), 1, with Ph₃GeH at 150 °C has yielded two new germanium-rich pentaruthenium cluster complexes: Ru₅(CO)₁₁(μ-CO)(μ-GePh₂) ₃(μ₅-C), 2; Ru₅(CO)₁₁(μ-GePh₂)₄ (μ₅-C), 3. Both compounds contain square pyramidal Ru₅ clusters with GePh₂ groups bridging three and four of the edges of the Ru₅ square base, respectively. When treated with 1 equiv of Ph₃GeH at 150 °C compound 2 is converted to 3. Reaction of 3 with H2 at 150 °C yielded Ru₅(CO)₁₀(μ-GePh₂)₄ (μ₅-C)(μ-H)₂, 4, containing two hydride ligands and one less CO ligand. Reaction of 4 with hydrogen at 150 °C yielded the compound Ru₅(CO)₁₀(μ-GePh₂)₂ (μ₃-GePh₂)₂(μ₃-H) (μ₄-CH), 5, by loss of benzene and conversion of two of the bridging GePh₂ groups into triply bridging GePh groups. Compound 5 contains one triply bridging hydride ligand and a quadruply bridging methylidyne ligand formed by addition of one hydrogen atom to the carbido carbon atom.

Original language	English (US)
Pages (from-to)	1328-1333
Number of pages	6
Journal	Inorganic Chemistry
Volume	42
Issue number	4
DOIs	https://doi.org/10.1021/ic020655w
State	Published - Feb 24 2003
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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title = "Germanium-rich pentaruthenium carbonyl clusters including Ru5(CO)11(μ-GePh2)4 (μ5-C) and its reactions with hydrogen",

abstract = "The reaction of Ru5(CO)15(μ5-C), 1, with Ph3GeH at 150 °C has yielded two new germanium-rich pentaruthenium cluster complexes: Ru5(CO)11(μ-CO)(μ-GePh2) 3(μ5-C), 2; Ru5(CO)11(μ-GePh2)4 (μ5-C), 3. Both compounds contain square pyramidal Ru5 clusters with GePh2 groups bridging three and four of the edges of the Ru5 square base, respectively. When treated with 1 equiv of Ph3GeH at 150 °C compound 2 is converted to 3. Reaction of 3 with H2 at 150 °C yielded Ru5(CO)10(μ-GePh2)4 (μ5-C)(μ-H)2, 4, containing two hydride ligands and one less CO ligand. Reaction of 4 with hydrogen at 150 °C yielded the compound Ru5(CO)10(μ-GePh2)2 (μ3-GePh2)2(μ3-H) (μ4-CH), 5, by loss of benzene and conversion of two of the bridging GePh2 groups into triply bridging GePh groups. Compound 5 contains one triply bridging hydride ligand and a quadruply bridging methylidyne ligand formed by addition of one hydrogen atom to the carbido carbon atom.",

author = "Adams, {Richard D.} and Burjor Captain and Wei Fu",

year = "2003",

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AU - Fu, Wei

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N2 - The reaction of Ru5(CO)15(μ5-C), 1, with Ph3GeH at 150 °C has yielded two new germanium-rich pentaruthenium cluster complexes: Ru5(CO)11(μ-CO)(μ-GePh2) 3(μ5-C), 2; Ru5(CO)11(μ-GePh2)4 (μ5-C), 3. Both compounds contain square pyramidal Ru5 clusters with GePh2 groups bridging three and four of the edges of the Ru5 square base, respectively. When treated with 1 equiv of Ph3GeH at 150 °C compound 2 is converted to 3. Reaction of 3 with H2 at 150 °C yielded Ru5(CO)10(μ-GePh2)4 (μ5-C)(μ-H)2, 4, containing two hydride ligands and one less CO ligand. Reaction of 4 with hydrogen at 150 °C yielded the compound Ru5(CO)10(μ-GePh2)2 (μ3-GePh2)2(μ3-H) (μ4-CH), 5, by loss of benzene and conversion of two of the bridging GePh2 groups into triply bridging GePh groups. Compound 5 contains one triply bridging hydride ligand and a quadruply bridging methylidyne ligand formed by addition of one hydrogen atom to the carbido carbon atom.

AB - The reaction of Ru5(CO)15(μ5-C), 1, with Ph3GeH at 150 °C has yielded two new germanium-rich pentaruthenium cluster complexes: Ru5(CO)11(μ-CO)(μ-GePh2) 3(μ5-C), 2; Ru5(CO)11(μ-GePh2)4 (μ5-C), 3. Both compounds contain square pyramidal Ru5 clusters with GePh2 groups bridging three and four of the edges of the Ru5 square base, respectively. When treated with 1 equiv of Ph3GeH at 150 °C compound 2 is converted to 3. Reaction of 3 with H2 at 150 °C yielded Ru5(CO)10(μ-GePh2)4 (μ5-C)(μ-H)2, 4, containing two hydride ligands and one less CO ligand. Reaction of 4 with hydrogen at 150 °C yielded the compound Ru5(CO)10(μ-GePh2)2 (μ3-GePh2)2(μ3-H) (μ4-CH), 5, by loss of benzene and conversion of two of the bridging GePh2 groups into triply bridging GePh groups. Compound 5 contains one triply bridging hydride ligand and a quadruply bridging methylidyne ligand formed by addition of one hydrogen atom to the carbido carbon atom.

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