HRu3(CO)10(COCH3). A cluster with an oxygen-containing μ2-carbyne ligand; preparation, structure and fluxionality

Brian F.G. Johnson; Jack Lewis; A. Guy Orpen; Paul R. Raithby; Georg Süss

doi:10.1016/S0022-328X(00)81288-7

HRu₃(CO)₁₀(COCH₃). A cluster with an oxygen-containing μ₂-carbyne ligand; preparation, structure and fluxionality

Brian F.G. Johnson, Jack Lewis, A. Guy Orpen, Paul R. Raithby, Georg Süss

University of Cambridge

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

Abstract

The cluster HRu₃(CO)₁₀(COCH₃) has been prepared from Na[HRu₃(CO)₁₁] and [(CH₃)₃O]BF₄ in acetonitrile. The complex crystallises in the monoclinic space group P2₁/c, with cell dimensions a 7.937(2), b 16.880(9), c 14.074(3) Å, β 104.16(3)° and Z 4. The structure was solved by a combination of Patterson and Fourier techniques and refined by full-matrix least-squares to final residues of R = 0.031 and R_w = 0.035 for the 2529 unique intensities. The three ruthenium atoms define an approximately equilateral triangle with one edge bridged by both a μ₂-H and a μ₂-COCH₃ ligand. The fluxional behaviour of HRu₃(CO)₁₀-(COCH₃) has been studied by variable temperature ¹³C NMR spectroscopy. The spectra are indicative of several dynamic processes occurring in solution over the range -100 to +90°C. The μ₂-COCH₃ species can be considered as a bridging three-electron donor and thus represents a μ₂-carbyne ligand.

Original language	English
Pages (from-to)	187-197
Number of pages	11
Journal	Journal of Organometallic Chemistry
Volume	173
Issue number	2
DOIs	https://doi.org/10.1016/S0022-328X(00)81288-7
Publication status	Published - 13 Jul 1979

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

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title = "HRu3(CO)10(COCH3). A cluster with an oxygen-containing μ2-carbyne ligand; preparation, structure and fluxionality",

abstract = "The cluster HRu3(CO)10(COCH3) has been prepared from Na[HRu3(CO)11] and [(CH3)3O]BF4 in acetonitrile. The complex crystallises in the monoclinic space group P21/c, with cell dimensions a 7.937(2), b 16.880(9), c 14.074(3) {\AA}, β 104.16(3)° and Z 4. The structure was solved by a combination of Patterson and Fourier techniques and refined by full-matrix least-squares to final residues of R = 0.031 and Rw = 0.035 for the 2529 unique intensities. The three ruthenium atoms define an approximately equilateral triangle with one edge bridged by both a μ2-H and a μ2-COCH3 ligand. The fluxional behaviour of HRu3(CO)10-(COCH3) has been studied by variable temperature 13C NMR spectroscopy. The spectra are indicative of several dynamic processes occurring in solution over the range -100 to +90°C. The μ2-COCH3 species can be considered as a bridging three-electron donor and thus represents a μ2-carbyne ligand.",

author = "Johnson, \{Brian F.G.\} and Jack Lewis and Orpen, \{A. Guy\} and \{R. Raithby\}, Paul and Georg S{\"u}ss",

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doi = "10.1016/S0022-328X(00)81288-7",

language = "English",

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T1 - HRu3(CO)10(COCH3). A cluster with an oxygen-containing μ2-carbyne ligand; preparation, structure and fluxionality

AU - Johnson, Brian F.G.

AU - Lewis, Jack

AU - Orpen, A. Guy

AU - R. Raithby, Paul

AU - Süss, Georg

PY - 1979/7/13

Y1 - 1979/7/13

N2 - The cluster HRu3(CO)10(COCH3) has been prepared from Na[HRu3(CO)11] and [(CH3)3O]BF4 in acetonitrile. The complex crystallises in the monoclinic space group P21/c, with cell dimensions a 7.937(2), b 16.880(9), c 14.074(3) Å, β 104.16(3)° and Z 4. The structure was solved by a combination of Patterson and Fourier techniques and refined by full-matrix least-squares to final residues of R = 0.031 and Rw = 0.035 for the 2529 unique intensities. The three ruthenium atoms define an approximately equilateral triangle with one edge bridged by both a μ2-H and a μ2-COCH3 ligand. The fluxional behaviour of HRu3(CO)10-(COCH3) has been studied by variable temperature 13C NMR spectroscopy. The spectra are indicative of several dynamic processes occurring in solution over the range -100 to +90°C. The μ2-COCH3 species can be considered as a bridging three-electron donor and thus represents a μ2-carbyne ligand.

AB - The cluster HRu3(CO)10(COCH3) has been prepared from Na[HRu3(CO)11] and [(CH3)3O]BF4 in acetonitrile. The complex crystallises in the monoclinic space group P21/c, with cell dimensions a 7.937(2), b 16.880(9), c 14.074(3) Å, β 104.16(3)° and Z 4. The structure was solved by a combination of Patterson and Fourier techniques and refined by full-matrix least-squares to final residues of R = 0.031 and Rw = 0.035 for the 2529 unique intensities. The three ruthenium atoms define an approximately equilateral triangle with one edge bridged by both a μ2-H and a μ2-COCH3 ligand. The fluxional behaviour of HRu3(CO)10-(COCH3) has been studied by variable temperature 13C NMR spectroscopy. The spectra are indicative of several dynamic processes occurring in solution over the range -100 to +90°C. The μ2-COCH3 species can be considered as a bridging three-electron donor and thus represents a μ2-carbyne ligand.

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DO - 10.1016/S0022-328X(00)81288-7

M3 - Article

AN - SCOPUS:0010990789

SN - 0022-328X

VL - 173

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EP - 197

JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

IS - 2

ER -

HRu₃(CO)₁₀(COCH₃). A cluster with an oxygen-containing μ₂-carbyne ligand; preparation, structure and fluxionality

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