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

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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

ASJC Scopus subject areas

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry
Materials Chemistry

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@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.}",

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",

number = "1-2",

}

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

In: Journal of Organometallic Chemistry, Vol. 334, No. 1-2, 03.11.1987, p. 117-128.

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

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.

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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U2 - 10.1016/0022-328X(87)80043-8

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

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JO - Journal of Organometallic Chemistry

JF - Journal of Organometallic Chemistry

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