Medium- and High-nuclearity Clusters of Ruthenium and Osmium

Cifuentes, Marie P.; Humphrey, Mark G.

doi:10.1016/b978-008046519-7.00071-x

Cited by 7 publications

(2 citation statements)

References 392 publications

(455 reference statements)

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“…Prompted by the fact that the number of known ruthenium carbonyl cluster complexes of nuclearity greater than five that contain N-donor ligands is still small, − and having in mind the ability of ruthenium carbonyl clusters to undergo aggregation processes under appropriate thermal conditions, ,− we decided to study the thermolysis of the hexanuclear cluster 2 at high temperature (>180 °C, since this compound is stable up to 150 °C), attempting the synthesis of novel high-nuclearity ruthenium carbonyl clusters containing 2-imidopyridine ligands.…”

Section: Introductionmentioning

confidence: 99%

Nonanuclear Ruthenium Carbonyl Cluster Complexes with a Novel Metallic Skeleton: Pentagonal Bipyramid with Two Equatorial Edges Spanned by Metal Atoms

et al. 2006

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The nonanuclear cluster complexes [Ru9(μ-H)2(μ4-κ2-ampy)4(CO)17] and [Ru9(μ3-H)(μ-H)(μ4-κ2-ampy)3(CO)18] (ampy = 2-imido-6-methylpyridine) have been prepared by heating [Ru6(μ3-H)2(μ5-κ2-ampy)(μ-CO)2(CO)14] in undecane at reflux temperature. Both compounds feature a novel metallic skeleton that can be described as a pentagonal bipyramid with two equatorial edges spanned by metal atoms. In both cases, the ampy ligands are attached to edge-bridging Ru atoms through the pyridine N atoms, while their imido N atoms cap metallic triangles formed by the metal atoms of one of the metal-bridged edges and one of the apical metal atoms.

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Section: Introductionmentioning

confidence: 99%

Nonanuclear Ruthenium Carbonyl Cluster Complexes with a Novel Metallic Skeleton: Pentagonal Bipyramid with Two Equatorial Edges Spanned by Metal Atoms

et al. 2006

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“…Prompted by the fact that the number of known ruthenium carbonyl cluster complexes of nuclearity greater than five that contain N-donor ligands is still small − and keeping in mind the ability of 2-aminopyridines to undergo N−H bond-cleavage processes in the presence of ruthenium carbonyl clusters under appropriate thermal conditions, ,,, we decided to study the thermolysis of compound 1 at high temperature (150 °C), attempting the synthesis of novel high-nuclearity ruthenium carbonyl clusters containing ligands derived from 2-aminopyridines. The reason for using a methyl-substituted 2-aminopyridine is that the methyl group facilitates the monitoring of the reactions by 1 H NMR spectroscopy …”

Section: Introductionmentioning

confidence: 99%

High-Nuclearity Ruthenium Carbonyl Cluster Complexes Derived from 2-Amino-6-methylpyridine: Synthesis of Nonanuclear Derivatives Containing μ₄- and μ₅-Oxo Ligands

et al. 2006

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Nonanuclear cluster complexes [Ru9(mu3-H)2(mu-H)(mu5-O)(mu4-ampy)(mu3-Hampy)(CO)21] (4) (H2ampy = 2-amino-6-methylpyridine), [Ru9(mu5-O)2(mu4-ampy)(mu3-Hampy)2(mu-CO)(CO)20] (5), [Ru9(mu5-O)2(mu4-ampy)(mu3-Hampy)2(mu-CO)2(CO)19] (6), and [Ru9(mu4-O)(mu5-O)(mu4-ampy)(mu3-Hampy)(mu-Hampy)(mu-CO)(CO)19] (7), together with the known hexanuclear [Ru6(mu3-H)2(mu5-ampy)(mu-CO)2(CO)14] (2) and the novel pentanuclear [Ru5(mu4-ampy)(2)(mu-CO)(CO)12] (3) complexes, are products of the thermolysis of [Ru3(mu-H)(mu3-Hampy)(CO)9] (1) in decane at 150 degrees C. Two different and very unusual quadruply bridging coordination modes have been observed for the ampy ligand. Compounds 4-7 also feature one (4) or two (5-7) bridging oxo ligands. With the exception of one of the oxo ligands of 7, which is in a distorted tetrahedral environment, the remaining oxo ligands of 4-7 are surrounded by five metal atoms. In carbonyl metal clusters, quadruply bridging oxo ligands are very unusual, whereas quintuply bridging oxo ligands are unprecedented. By using 18O-labeled water, we have unambiguously established that these oxo ligands arise from water.

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High Nuclearity Hydridodecaruthenium Clusters

Cifuentes

Humphrey

Shapley

et al. 1998

Inorganic Syntheses

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Medium- and High-nuclearity Clusters of Ruthenium and Osmium

Cited by 7 publications

References 392 publications

Nonanuclear Ruthenium Carbonyl Cluster Complexes with a Novel Metallic Skeleton: Pentagonal Bipyramid with Two Equatorial Edges Spanned by Metal Atoms

Nonanuclear Ruthenium Carbonyl Cluster Complexes with a Novel Metallic Skeleton: Pentagonal Bipyramid with Two Equatorial Edges Spanned by Metal Atoms

High-Nuclearity Ruthenium Carbonyl Cluster Complexes Derived from 2-Amino-6-methylpyridine: Synthesis of Nonanuclear Derivatives Containing μ₄- and μ₅-Oxo Ligands

High Nuclearity Hydridodecaruthenium Clusters

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Medium- and High-nuclearity Clusters of Ruthenium and Osmium

Cited by 7 publications

References 392 publications

Nonanuclear Ruthenium Carbonyl Cluster Complexes with a Novel Metallic Skeleton: Pentagonal Bipyramid with Two Equatorial Edges Spanned by Metal Atoms

Nonanuclear Ruthenium Carbonyl Cluster Complexes with a Novel Metallic Skeleton: Pentagonal Bipyramid with Two Equatorial Edges Spanned by Metal Atoms

High-Nuclearity Ruthenium Carbonyl Cluster Complexes Derived from 2-Amino-6-methylpyridine: Synthesis of Nonanuclear Derivatives Containing μ4- and μ5-Oxo Ligands

High Nuclearity Hydridodecaruthenium Clusters

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High-Nuclearity Ruthenium Carbonyl Cluster Complexes Derived from 2-Amino-6-methylpyridine: Synthesis of Nonanuclear Derivatives Containing μ₄- and μ₅-Oxo Ligands