Platinum-osmium cluster complexes from the addition of Pt(PBu t3) groups to Os3(CO)12

Richard D. Adams; Burjor Captain; Lei Zhu

doi:10.1021/ic0515507

Platinum-osmium cluster complexes from the addition of Pt(PBu ^t₃) groups to Os₃(CO)₁₂

Richard D. Adams, Burjor Captain, Lei Zhu

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

26 Scopus citations

Abstract

Three new compounds, PtOs₃(CO)₁₂(PBu^t ₃) (10), Pt₂Os₃(CO)₁₂(PBu ^t₃)₂ (11), and Pt₃Os ₃(CO)₁₂(PBu^t₃)₃ (12), have been obtained from the reaction of Pt(PBu^t₃) ₂ with Os₃(CO)₁₂ (9). The products were formed by the sequential addition of 1-3 Pt(PBu^t₃) groups to the three Os-Os bonds of the metal cluster of Os₃(CO)₁₂. In solution, compounds 10-12 interconvert among themselves by intermolecular exchange of the Pt(PBu^t₃) groups. When 11 is treated with PPh₃, the mono- and bis(PPh₃) derivatives of 9, Os ₃(CO)₁₁(PPh₃) and Os₃(CO) ₁₀(PPh₃)₂, were obtained by elimination of the Pt(PBu^t₃) groups together with one and two CO ligands, respectively. When heated, compound 11 was transformed into the new compound Pt₂Os₃(CO)₁₀(PBu^t ₃)(PBu^t₂CMe₂CH₂)(μ-H) (13) by the loss of two CO ligands and a metalation of one of the methyl groups of one of the PBu^t₃ ligands. Compounds 10-13 have been characterized by single-crystal X-ray diffraction analyses.

Original language	English (US)
Pages (from-to)	430-436
Number of pages	7
Journal	Inorganic Chemistry
Volume	45
Issue number	1
DOIs	https://doi.org/10.1021/ic0515507
State	Published - Jan 9 2006
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry

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title = "Platinum-osmium cluster complexes from the addition of Pt(PBu t3) groups to Os3(CO)12",

abstract = "Three new compounds, PtOs3(CO)12(PBut 3) (10), Pt2Os3(CO)12(PBu t3)2 (11), and Pt3Os 3(CO)12(PBut3)3 (12), have been obtained from the reaction of Pt(PBut3) 2 with Os3(CO)12 (9). The products were formed by the sequential addition of 1-3 Pt(PBut3) groups to the three Os-Os bonds of the metal cluster of Os3(CO)12. In solution, compounds 10-12 interconvert among themselves by intermolecular exchange of the Pt(PBut3) groups. When 11 is treated with PPh3, the mono- and bis(PPh3) derivatives of 9, Os 3(CO)11(PPh3) and Os3(CO) 10(PPh3)2, were obtained by elimination of the Pt(PBut3) groups together with one and two CO ligands, respectively. When heated, compound 11 was transformed into the new compound Pt2Os3(CO)10(PBut 3)(PBut2CMe2CH2)(μ-H) (13) by the loss of two CO ligands and a metalation of one of the methyl groups of one of the PBut3 ligands. Compounds 10-13 have been characterized by single-crystal X-ray diffraction analyses.",

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AU - Adams, Richard D.

AU - Captain, Burjor

AU - Zhu, Lei

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N2 - Three new compounds, PtOs3(CO)12(PBut 3) (10), Pt2Os3(CO)12(PBu t3)2 (11), and Pt3Os 3(CO)12(PBut3)3 (12), have been obtained from the reaction of Pt(PBut3) 2 with Os3(CO)12 (9). The products were formed by the sequential addition of 1-3 Pt(PBut3) groups to the three Os-Os bonds of the metal cluster of Os3(CO)12. In solution, compounds 10-12 interconvert among themselves by intermolecular exchange of the Pt(PBut3) groups. When 11 is treated with PPh3, the mono- and bis(PPh3) derivatives of 9, Os 3(CO)11(PPh3) and Os3(CO) 10(PPh3)2, were obtained by elimination of the Pt(PBut3) groups together with one and two CO ligands, respectively. When heated, compound 11 was transformed into the new compound Pt2Os3(CO)10(PBut 3)(PBut2CMe2CH2)(μ-H) (13) by the loss of two CO ligands and a metalation of one of the methyl groups of one of the PBut3 ligands. Compounds 10-13 have been characterized by single-crystal X-ray diffraction analyses.

AB - Three new compounds, PtOs3(CO)12(PBut 3) (10), Pt2Os3(CO)12(PBu t3)2 (11), and Pt3Os 3(CO)12(PBut3)3 (12), have been obtained from the reaction of Pt(PBut3) 2 with Os3(CO)12 (9). The products were formed by the sequential addition of 1-3 Pt(PBut3) groups to the three Os-Os bonds of the metal cluster of Os3(CO)12. In solution, compounds 10-12 interconvert among themselves by intermolecular exchange of the Pt(PBut3) groups. When 11 is treated with PPh3, the mono- and bis(PPh3) derivatives of 9, Os 3(CO)11(PPh3) and Os3(CO) 10(PPh3)2, were obtained by elimination of the Pt(PBut3) groups together with one and two CO ligands, respectively. When heated, compound 11 was transformed into the new compound Pt2Os3(CO)10(PBut 3)(PBut2CMe2CH2)(μ-H) (13) by the loss of two CO ligands and a metalation of one of the methyl groups of one of the PBut3 ligands. Compounds 10-13 have been characterized by single-crystal X-ray diffraction analyses.

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Platinum-osmium cluster complexes from the addition of Pt(PBu ^t₃) groups to Os₃(CO)₁₂

Abstract

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