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

Chemistry

Research output: Contribution to journal › Article

11 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 - Dec 1 2001

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Keywords

Carbido ligand
Fluxionality
Iron
Platinum

ASJC Scopus subject areas

Inorganic Chemistry

Cite this

Adams, R. D., Captain, B., & Fu, W. (2001). 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). Journal of Cluster Science, 12(1), 303-312. https://doi.org/10.1023/A:1016647718163

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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.",

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10.1023/A:1016647718163