New high nuclearity platinum-ruthenium carbonyl cluster complexes containing a phenylacetylene ligand: Structures and properties

Richard D. Adams; Burjor Captain; Lei Zhu

doi:10.1021/om050175n

New high nuclearity platinum-ruthenium carbonyl cluster complexes containing a phenylacetylene ligand: Structures and properties

Richard D. Adams, Burjor Captain, Lei Zhu

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

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Abstract

Reaction of the mixed-metal carbonyl cluster complex Ru₅(CO) ₁₅(C)[Pt(PBu₃^t)], 3, with PhC₂H yielded the new compound PtRu₅(CO)₁₃(PBu₃ ^t)(μ₅-C)(μ₃-PhC₂H), 4, in 41% yield. Two new bimetallic cluster complexes, Pt₂Ru ₅(CO)₁₃(PBu₃^t) ₂(μ₅-C)(μ₃-PhC₂H), 5, and Pt₃Ru₅(CO)₁₃(PBu₃^t) ₃(μ₅-C)(μ₃-PhC₂H), 6, were subsequently obtained in 44% and 40% yield, respectively, from the reaction of 4 with an excess of Pt(PBu₃^t)₂. All products were characterized crystallographically by single-crystal X-ray diffraction techniques. The structure of 4 consists of a square-pyramidal cluster of five ruthenium atoms with a Pt(PBu₃^t) group capping one of the Ru₃ triangles. A PhC₂H ligand bridges one of the PtRu ₂ triangles. Compounds 5 and 6 are similar to 4 but have in addition one and two Pt(PBu₃^t) groups bridging one and two edges of the Ru₅ square-pyramidal portion of the cluster. Compound 6 was shown to be dynamically active on the ³¹P NMR time scale by a process that involves an interchange of two of its inequivalent Pt(PBu₃ ^t) groups.

Original language	English (US)
Pages (from-to)	2419-2423
Number of pages	5
Journal	Organometallics
Volume	24
Issue number	10
DOIs	https://doi.org/10.1021/om050175n
State	Published - May 9 2005
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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@article{17d06a95540e4933900411ed822c59e1,

title = "New high nuclearity platinum-ruthenium carbonyl cluster complexes containing a phenylacetylene ligand: Structures and properties",

abstract = "Reaction of the mixed-metal carbonyl cluster complex Ru5(CO) 15(C)[Pt(PBu3t)], 3, with PhC2H yielded the new compound PtRu5(CO)13(PBu3 t)(μ5-C)(μ3-PhC2H), 4, in 41% yield. Two new bimetallic cluster complexes, Pt2Ru 5(CO)13(PBu3t) 2(μ5-C)(μ3-PhC2H), 5, and Pt3Ru5(CO)13(PBu3t) 3(μ5-C)(μ3-PhC2H), 6, were subsequently obtained in 44% and 40% yield, respectively, from the reaction of 4 with an excess of Pt(PBu3t)2. All products were characterized crystallographically by single-crystal X-ray diffraction techniques. The structure of 4 consists of a square-pyramidal cluster of five ruthenium atoms with a Pt(PBu3t) group capping one of the Ru3 triangles. A PhC2H ligand bridges one of the PtRu 2 triangles. Compounds 5 and 6 are similar to 4 but have in addition one and two Pt(PBu3t) groups bridging one and two edges of the Ru5 square-pyramidal portion of the cluster. Compound 6 was shown to be dynamically active on the 31P NMR time scale by a process that involves an interchange of two of its inequivalent Pt(PBu3 t) groups.",

author = "Adams, {Richard D.} and Burjor Captain and Lei Zhu",

year = "2005",

month = may,

day = "9",

doi = "10.1021/om050175n",

language = "English (US)",

volume = "24",

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journal = "Organometallics",

issn = "0276-7333",

publisher = "American Chemical Society",

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T1 - New high nuclearity platinum-ruthenium carbonyl cluster complexes containing a phenylacetylene ligand

T2 - Structures and properties

AU - Adams, Richard D.

AU - Captain, Burjor

AU - Zhu, Lei

PY - 2005/5/9

Y1 - 2005/5/9

N2 - Reaction of the mixed-metal carbonyl cluster complex Ru5(CO) 15(C)[Pt(PBu3t)], 3, with PhC2H yielded the new compound PtRu5(CO)13(PBu3 t)(μ5-C)(μ3-PhC2H), 4, in 41% yield. Two new bimetallic cluster complexes, Pt2Ru 5(CO)13(PBu3t) 2(μ5-C)(μ3-PhC2H), 5, and Pt3Ru5(CO)13(PBu3t) 3(μ5-C)(μ3-PhC2H), 6, were subsequently obtained in 44% and 40% yield, respectively, from the reaction of 4 with an excess of Pt(PBu3t)2. All products were characterized crystallographically by single-crystal X-ray diffraction techniques. The structure of 4 consists of a square-pyramidal cluster of five ruthenium atoms with a Pt(PBu3t) group capping one of the Ru3 triangles. A PhC2H ligand bridges one of the PtRu 2 triangles. Compounds 5 and 6 are similar to 4 but have in addition one and two Pt(PBu3t) groups bridging one and two edges of the Ru5 square-pyramidal portion of the cluster. Compound 6 was shown to be dynamically active on the 31P NMR time scale by a process that involves an interchange of two of its inequivalent Pt(PBu3 t) groups.

AB - Reaction of the mixed-metal carbonyl cluster complex Ru5(CO) 15(C)[Pt(PBu3t)], 3, with PhC2H yielded the new compound PtRu5(CO)13(PBu3 t)(μ5-C)(μ3-PhC2H), 4, in 41% yield. Two new bimetallic cluster complexes, Pt2Ru 5(CO)13(PBu3t) 2(μ5-C)(μ3-PhC2H), 5, and Pt3Ru5(CO)13(PBu3t) 3(μ5-C)(μ3-PhC2H), 6, were subsequently obtained in 44% and 40% yield, respectively, from the reaction of 4 with an excess of Pt(PBu3t)2. All products were characterized crystallographically by single-crystal X-ray diffraction techniques. The structure of 4 consists of a square-pyramidal cluster of five ruthenium atoms with a Pt(PBu3t) group capping one of the Ru3 triangles. A PhC2H ligand bridges one of the PtRu 2 triangles. Compounds 5 and 6 are similar to 4 but have in addition one and two Pt(PBu3t) groups bridging one and two edges of the Ru5 square-pyramidal portion of the cluster. Compound 6 was shown to be dynamically active on the 31P NMR time scale by a process that involves an interchange of two of its inequivalent Pt(PBu3 t) groups.

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New high nuclearity platinum-ruthenium carbonyl cluster complexes containing a phenylacetylene ligand: Structures and properties

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