New Mixed Metal Cluster Complexes Containing Platinum. The Synthesis and Structural Characterizations of PtFe4(CO)12(COD)(μ5-C) and PtFe4(CO)12(PMe2Ph)2(μ 5-C)

Richard D. Adams; Burjor Captain; Wei Fu

doi:10.1023/A:1016647718163

New Mixed Metal Cluster Complexes Containing Platinum. The Synthesis and Structural Characterizations of PtFe₄(CO)₁₂(COD)(μ₅-C) and PtFe₄(CO)₁₂(PMe₂Ph)₂(μ ₅-C)

Richard D. Adams, Burjor Captain, Wei Fu

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

12 Scopus citations

Abstract

The new mixed metal carbide containing cluster compounds PtFe₄(CO)₁₂ (COD)(μ₅-C) 1 and PtFe₄(CO)₁₂(PMe₂Ph)₂(μ ₅-C), 2 were obtained by metal-metal exchange reactions between [Et₄N]₂[Fe₅(C)(CO)₁₄] with Pt(COD)Cl₂ in the presence Of TIPF₆ and Pt(PMe₂Ph)₂Cl₂, respectively. Compound 1 was also obtained by the reaction of Fe₅(CO)₁₅(μ₅-C) with Pt(COD)₂ in the presence of UV irradiation but in a lower yield. Both compounds were characterized by a combination of IR, ¹H NMR and single crystal x-ray diffraction analyses. Both complexes consists of a square pyramidal cluster of five metal atoms with an "interstitial" carbido ligand in the center of the square base. The phosphine ligands in 2 undergo a dynamical intramolecular interchange at a rate that is fast on the ¹H NMR time scale at 45°C, ΔG† (at 318 K) = 15.1 kcal/mol.

Original language	English (US)
Pages (from-to)	303-312
Number of pages	10
Journal	Journal of Cluster Science
Volume	12
Issue number	1
DOIs	https://doi.org/10.1023/A:1016647718163
State	Published - 2001
Externally published	Yes

Keywords

Carbido ligand
Fluxionality
Iron
Platinum

ASJC Scopus subject areas

Inorganic Chemistry

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title = "New Mixed Metal Cluster Complexes Containing Platinum. The Synthesis and Structural Characterizations of PtFe4(CO)12(COD)(μ5-C) and PtFe4(CO)12(PMe2Ph)2(μ 5-C)",

abstract = "The new mixed metal carbide containing cluster compounds PtFe4(CO)12 (COD)(μ5-C) 1 and PtFe4(CO)12(PMe2Ph)2(μ 5-C), 2 were obtained by metal-metal exchange reactions between [Et4N]2[Fe5(C)(CO)14] with Pt(COD)Cl2 in the presence Of TIPF6 and Pt(PMe2Ph)2Cl2, respectively. Compound 1 was also obtained by the reaction of Fe5(CO)15(μ5-C) with Pt(COD)2 in the presence of UV irradiation but in a lower yield. Both compounds were characterized by a combination of IR, 1H NMR and single crystal x-ray diffraction analyses. Both complexes consists of a square pyramidal cluster of five metal atoms with an {"}interstitial{"} carbido ligand in the center of the square base. The phosphine ligands in 2 undergo a dynamical intramolecular interchange at a rate that is fast on the 1H NMR time scale at 45°C, ΔG† (at 318 K) = 15.1 kcal/mol.",

keywords = "Carbido ligand, Fluxionality, Iron, Platinum",

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

note = "Funding Information: This research was supported by the Office of Basic Energy Sciences of the U.S. Department of Energy under Grant DE-FG02-00ER14980.",

year = "2001",

doi = "10.1023/A:1016647718163",

language = "English (US)",

volume = "12",

pages = "303--312",

journal = "Journal of Cluster Science",

issn = "1040-7278",

publisher = "Springer New York",

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T1 - New Mixed Metal Cluster Complexes Containing Platinum. The Synthesis and Structural Characterizations of PtFe4(CO)12(COD)(μ5-C) and PtFe4(CO)12(PMe2Ph)2(μ 5-C)

AU - Adams, Richard D.

AU - Captain, Burjor

AU - Fu, Wei

N1 - Funding Information: This research was supported by the Office of Basic Energy Sciences of the U.S. Department of Energy under Grant DE-FG02-00ER14980.

PY - 2001

Y1 - 2001

N2 - The new mixed metal carbide containing cluster compounds PtFe4(CO)12 (COD)(μ5-C) 1 and PtFe4(CO)12(PMe2Ph)2(μ 5-C), 2 were obtained by metal-metal exchange reactions between [Et4N]2[Fe5(C)(CO)14] with Pt(COD)Cl2 in the presence Of TIPF6 and Pt(PMe2Ph)2Cl2, respectively. Compound 1 was also obtained by the reaction of Fe5(CO)15(μ5-C) with Pt(COD)2 in the presence of UV irradiation but in a lower yield. Both compounds were characterized by a combination of IR, 1H NMR and single crystal x-ray diffraction analyses. Both complexes consists of a square pyramidal cluster of five metal atoms with an "interstitial" carbido ligand in the center of the square base. The phosphine ligands in 2 undergo a dynamical intramolecular interchange at a rate that is fast on the 1H NMR time scale at 45°C, ΔG† (at 318 K) = 15.1 kcal/mol.

AB - The new mixed metal carbide containing cluster compounds PtFe4(CO)12 (COD)(μ5-C) 1 and PtFe4(CO)12(PMe2Ph)2(μ 5-C), 2 were obtained by metal-metal exchange reactions between [Et4N]2[Fe5(C)(CO)14] with Pt(COD)Cl2 in the presence Of TIPF6 and Pt(PMe2Ph)2Cl2, respectively. Compound 1 was also obtained by the reaction of Fe5(CO)15(μ5-C) with Pt(COD)2 in the presence of UV irradiation but in a lower yield. Both compounds were characterized by a combination of IR, 1H NMR and single crystal x-ray diffraction analyses. Both complexes consists of a square pyramidal cluster of five metal atoms with an "interstitial" carbido ligand in the center of the square base. The phosphine ligands in 2 undergo a dynamical intramolecular interchange at a rate that is fast on the 1H NMR time scale at 45°C, ΔG† (at 318 K) = 15.1 kcal/mol.

KW - Carbido ligand

KW - Fluxionality

KW - Iron

KW - Platinum

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