Synthesis of Cp(CO)CoPt(PPh3)2(μ-CH2) and Cp2Co2Pt(PPh3)2(μ-CO)2 from the reaction of Pt(PPh3)2(C2H4) with [CPCo(CO)]2(μ-CH2)

Phillip D. Macklin; Chad A. Mirkin; Nathan Viswanathan; Gregory D. Williams; Gregory L. Geoffroy; Arnold L. Rheingold

doi:10.1016/0022-328X(87)80043-8

Synthesis of Cp(CO)CoPt(PPh₃)₂(μ-CH₂) and Cp₂Co₂Pt(PPh₃)₂(μ-CO)₂ from the reaction of Pt(PPh₃)₂(C₂H₄) with [CPCo(CO)]₂(μ-CH₂)

Phillip D. Macklin^*, Chad A. Mirkin, Nathan Viswanathan, Gregory D. Williams, Gregory L. Geoffroy, Arnold L. Rheingold

^*Corresponding author for this work

Chemistry

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

10 Scopus citations

Abstract

Addition of Pt(PPh₃)₂(C₂H₄) to [CpCo(CO]₂(μ-CH₂) yields the bimetallic μ-methylene complex Cp(CO)CoPt(PPh₃)₂(μ-CH₂) (3) along with the trimetallic cluster Cp₂Co₂Pt(PPh₃)₂(μ-CO)₂ (4). Both complexes have been structurally characterized: 3, P2₁/n, a 12.240(6) Å, b 17.395(8) Å, c 17.887(9) Å, β 97.36(3)°, V 3777(2) Å³, Z = 4, R_f 4.8%, R_wf 4.9% for 3352 reflections with F₀, ≥ 3σ(F₀); 4, P1, a 11.511(3) Å, b 12.775(3) Å, c 16.526(4) Å, α 70.46(3)°, β 89.59(3)°, γ 64.18(2)°, V 2034.1(8) Å³, Z = 2, R_f 5.88%, R_wf 6.67% for 5865 reflections with F⁰ ≥ 3σ(F⁰). The CoPt bond in 3 is bridged by the μ-CH₂ ligand with the Co further ligated by Cp and CO ligands and the Pt has two PPh₃ ligands. Cluster 4 has a closed PtCo₂ triangular structure with two semi-triply bridging CO ligands above and below the metal plane which interact with Pt less than with the two Co atoms. The Co atoms are each ligated by a Cp ligand and the Pt by two PPh₃ ligands. Since complexes 3, and 4 are all isolobal with Pt(PPh₃)₂(CH₂CH₂), the reactions reported herein simply represent the interchange of one isolobal fragment with another.

Original language	English (US)
Pages (from-to)	117-128
Number of pages	12
Journal	Journal of Organometallic Chemistry
Volume	334
Issue number	1-2
DOIs	https://doi.org/10.1016/0022-328X(87)80043-8
State	Published - Nov 3 1987

Funding

We thank the Department of Energy, Office of Basic Energy Sciences for support of this research, the National Science Foundation for contributing funds toward the purchase of the X-ray diffractometer at the University of Delaware, and R.J. Hale and G. Steinmetz at Tennessee Eastman Co. for obtaining the FD mass spectra.

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/0022-328X(87)80043-8

Cite this

@article{983cd62ab86840d7a4e45bfa5a54135f,

title = "Synthesis of Cp(CO)CoPt(PPh3)2(μ-CH2) and Cp2Co2Pt(PPh3)2(μ-CO)2 from the reaction of Pt(PPh3)2(C2H4) with [CPCo(CO)]2(μ-CH2)",

abstract = "Addition of Pt(PPh3)2(C2H4) to [CpCo(CO]2(μ-CH2) yields the bimetallic μ-methylene complex Cp(CO)CoPt(PPh3)2(μ-CH2) (3) along with the trimetallic cluster Cp2Co2Pt(PPh3)2(μ-CO)2 (4). Both complexes have been structurally characterized: 3, P21/n, a 12.240(6) {\AA}, b 17.395(8) {\AA}, c 17.887(9) {\AA}, β 97.36(3)°, V 3777(2) {\AA}3, Z = 4, Rf 4.8%, Rwf 4.9% for 3352 reflections with F0, ≥ 3σ(F0); 4, P1, a 11.511(3) {\AA}, b 12.775(3) {\AA}, c 16.526(4) {\AA}, α 70.46(3)°, β 89.59(3)°, γ 64.18(2)°, V 2034.1(8) {\AA}3, Z = 2, Rf 5.88%, Rwf 6.67% for 5865 reflections with F0 ≥ 3σ(F0). The CoPt bond in 3 is bridged by the μ-CH2 ligand with the Co further ligated by Cp and CO ligands and the Pt has two PPh3 ligands. Cluster 4 has a closed PtCo2 triangular structure with two semi-triply bridging CO ligands above and below the metal plane which interact with Pt less than with the two Co atoms. The Co atoms are each ligated by a Cp ligand and the Pt by two PPh3 ligands. Since complexes 3, and 4 are all isolobal with Pt(PPh3)2(CH2CH2), the reactions reported herein simply represent the interchange of one isolobal fragment with another.",

author = "Macklin, {Phillip D.} and Mirkin, {Chad A.} and Nathan Viswanathan and Williams, {Gregory D.} and Geoffroy, {Gregory L.} and Rheingold, {Arnold L.}",

note = "Funding Information: We thank the Department of Energy, Office of Basic Energy Sciences for support of this research, the National Science Foundation for contributing funds toward the purchase of the X-ray diffractometer at the University of Delaware, and R.J. Hale and G. Steinmetz at Tennessee Eastman Co. for obtaining the FD mass spectra.",

year = "1987",

month = nov,

day = "3",

doi = "10.1016/0022-328X(87)80043-8",

language = "English (US)",

volume = "334",

pages = "117--128",

journal = "Journal of Organometallic Chemistry",

issn = "0022-328X",

publisher = "Elsevier B.V.",

number = "1-2",

}

TY - JOUR

T1 - Synthesis of Cp(CO)CoPt(PPh3)2(μ-CH2) and Cp2Co2Pt(PPh3)2(μ-CO)2 from the reaction of Pt(PPh3)2(C2H4) with [CPCo(CO)]2(μ-CH2)

AU - Macklin, Phillip D.

AU - Mirkin, Chad A.

AU - Viswanathan, Nathan

AU - Williams, Gregory D.

AU - Geoffroy, Gregory L.

AU - Rheingold, Arnold L.

N1 - Funding Information: We thank the Department of Energy, Office of Basic Energy Sciences for support of this research, the National Science Foundation for contributing funds toward the purchase of the X-ray diffractometer at the University of Delaware, and R.J. Hale and G. Steinmetz at Tennessee Eastman Co. for obtaining the FD mass spectra.

PY - 1987/11/3

Y1 - 1987/11/3

N2 - Addition of Pt(PPh3)2(C2H4) to [CpCo(CO]2(μ-CH2) yields the bimetallic μ-methylene complex Cp(CO)CoPt(PPh3)2(μ-CH2) (3) along with the trimetallic cluster Cp2Co2Pt(PPh3)2(μ-CO)2 (4). Both complexes have been structurally characterized: 3, P21/n, a 12.240(6) Å, b 17.395(8) Å, c 17.887(9) Å, β 97.36(3)°, V 3777(2) Å3, Z = 4, Rf 4.8%, Rwf 4.9% for 3352 reflections with F0, ≥ 3σ(F0); 4, P1, a 11.511(3) Å, b 12.775(3) Å, c 16.526(4) Å, α 70.46(3)°, β 89.59(3)°, γ 64.18(2)°, V 2034.1(8) Å3, Z = 2, Rf 5.88%, Rwf 6.67% for 5865 reflections with F0 ≥ 3σ(F0). The CoPt bond in 3 is bridged by the μ-CH2 ligand with the Co further ligated by Cp and CO ligands and the Pt has two PPh3 ligands. Cluster 4 has a closed PtCo2 triangular structure with two semi-triply bridging CO ligands above and below the metal plane which interact with Pt less than with the two Co atoms. The Co atoms are each ligated by a Cp ligand and the Pt by two PPh3 ligands. Since complexes 3, and 4 are all isolobal with Pt(PPh3)2(CH2CH2), the reactions reported herein simply represent the interchange of one isolobal fragment with another.

AB - Addition of Pt(PPh3)2(C2H4) to [CpCo(CO]2(μ-CH2) yields the bimetallic μ-methylene complex Cp(CO)CoPt(PPh3)2(μ-CH2) (3) along with the trimetallic cluster Cp2Co2Pt(PPh3)2(μ-CO)2 (4). Both complexes have been structurally characterized: 3, P21/n, a 12.240(6) Å, b 17.395(8) Å, c 17.887(9) Å, β 97.36(3)°, V 3777(2) Å3, Z = 4, Rf 4.8%, Rwf 4.9% for 3352 reflections with F0, ≥ 3σ(F0); 4, P1, a 11.511(3) Å, b 12.775(3) Å, c 16.526(4) Å, α 70.46(3)°, β 89.59(3)°, γ 64.18(2)°, V 2034.1(8) Å3, Z = 2, Rf 5.88%, Rwf 6.67% for 5865 reflections with F0 ≥ 3σ(F0). The CoPt bond in 3 is bridged by the μ-CH2 ligand with the Co further ligated by Cp and CO ligands and the Pt has two PPh3 ligands. Cluster 4 has a closed PtCo2 triangular structure with two semi-triply bridging CO ligands above and below the metal plane which interact with Pt less than with the two Co atoms. The Co atoms are each ligated by a Cp ligand and the Pt by two PPh3 ligands. Since complexes 3, and 4 are all isolobal with Pt(PPh3)2(CH2CH2), the reactions reported herein simply represent the interchange of one isolobal fragment with another.

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