Addition of Pt(IPr) Groupings to Ru5 Carbide Gives New Mixed-Metal Pt–Ru Cluster Complexes

Anjaneyulu Koppaka; Vincent Zollo; Sedigheh Etezadi; David C. Lever; Burjor Captain

doi:10.1007/s10876-016-1031-x

Addition of Pt(IPr) Groupings to Ru₅ Carbide Gives New Mixed-Metal Pt–Ru Cluster Complexes

Anjaneyulu Koppaka, Vincent Zollo, Sedigheh Etezadi, David C. Lever, Burjor Captain

Chemistry

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

6 Scopus citations

Abstract

The reaction of Pt(IPr)(SnBu₃ ^t)(H), 1 [IPr = N-heterocylic carbene ligand N,N ′-bis-(2,6-(diisopropyl) phenyl)imidazol-2-ylidene] with Ru₅(μ₅-C)(CO)₁₅, 2, in 1.2:1 (and 2.2:1) ratio in benzene solvent at refluxing temperature afforded the octahedral monoplatinum–pentaruthenium cluster complexes PtRu₅(IPr)(CO)₁₅(μ₆-C), 3 in 54 % (10 %) yield, PtRu₅(IPr)(CO)₁₄(H)₂(μ₆-C), 4 in 6 % (10 %) yield and the diplatinum–pentaruthenium cluster complex Pt₂Ru₅(IPr)₂(CO)₁₅(μ₆-C), 5 in 2 % (36 %)yield. Complex 3 readily reacts with H₂ at room temperature to give complex 4. Compound 5 exhibits dynamical activity in solution where the two Pt(IPr) groups are exchanging rapidly. All three compounds were structurally characterized by single-crystal X-ray diffraction analyses.

Original language	English (US)
Pages (from-to)	1671-1681
Number of pages	11
Journal	Journal of Cluster Science
Volume	27
Issue number	5
DOIs	https://doi.org/10.1007/s10876-016-1031-x
State	Published - Sep 1 2016

Keywords

Bimetallic
Cluster
Interconversion
N-heterocylic carbene
Platinum

ASJC Scopus subject areas

Biochemistry
Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1007/s10876-016-1031-x

Cite this

@article{5a6571320b744e0f9d9c79ad6c9e1c39,

title = "Addition of Pt(IPr) Groupings to Ru5 Carbide Gives New Mixed-Metal Pt–Ru Cluster Complexes",

abstract = "The reaction of Pt(IPr)(SnBu3 t)(H), 1 [IPr = N-heterocylic carbene ligand N,N ′-bis-(2,6-(diisopropyl) phenyl)imidazol-2-ylidene] with Ru5(μ5-C)(CO)15, 2, in 1.2:1 (and 2.2:1) ratio in benzene solvent at refluxing temperature afforded the octahedral monoplatinum–pentaruthenium cluster complexes PtRu5(IPr)(CO)15(μ6-C), 3 in 54 % (10 %) yield, PtRu5(IPr)(CO)14(H)2(μ6-C), 4 in 6 % (10 %) yield and the diplatinum–pentaruthenium cluster complex Pt2Ru5(IPr)2(CO)15(μ6-C), 5 in 2 % (36 %)yield. Complex 3 readily reacts with H2 at room temperature to give complex 4. Compound 5 exhibits dynamical activity in solution where the two Pt(IPr) groups are exchanging rapidly. All three compounds were structurally characterized by single-crystal X-ray diffraction analyses.",

keywords = "Bimetallic, Cluster, Interconversion, N-heterocylic carbene, Platinum",

author = "Anjaneyulu Koppaka and Vincent Zollo and Sedigheh Etezadi and Lever, {David C.} and Burjor Captain",

note = "Funding Information: The National Science Foundation (CHE-1300206) is gratefully acknowledged for support of this work as well as for providing funds towards the purchase of LC–ESI–MS (CHE-0946858). Publisher Copyright: {\textcopyright} 2016, Springer Science+Business Media New York.",

year = "2016",

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language = "English (US)",

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T1 - Addition of Pt(IPr) Groupings to Ru5 Carbide Gives New Mixed-Metal Pt–Ru Cluster Complexes

AU - Koppaka, Anjaneyulu

AU - Zollo, Vincent

AU - Etezadi, Sedigheh

AU - Lever, David C.

AU - Captain, Burjor

N1 - Funding Information: The National Science Foundation (CHE-1300206) is gratefully acknowledged for support of this work as well as for providing funds towards the purchase of LC–ESI–MS (CHE-0946858). Publisher Copyright: © 2016, Springer Science+Business Media New York.

PY - 2016/9/1

Y1 - 2016/9/1

N2 - The reaction of Pt(IPr)(SnBu3 t)(H), 1 [IPr = N-heterocylic carbene ligand N,N ′-bis-(2,6-(diisopropyl) phenyl)imidazol-2-ylidene] with Ru5(μ5-C)(CO)15, 2, in 1.2:1 (and 2.2:1) ratio in benzene solvent at refluxing temperature afforded the octahedral monoplatinum–pentaruthenium cluster complexes PtRu5(IPr)(CO)15(μ6-C), 3 in 54 % (10 %) yield, PtRu5(IPr)(CO)14(H)2(μ6-C), 4 in 6 % (10 %) yield and the diplatinum–pentaruthenium cluster complex Pt2Ru5(IPr)2(CO)15(μ6-C), 5 in 2 % (36 %)yield. Complex 3 readily reacts with H2 at room temperature to give complex 4. Compound 5 exhibits dynamical activity in solution where the two Pt(IPr) groups are exchanging rapidly. All three compounds were structurally characterized by single-crystal X-ray diffraction analyses.

AB - The reaction of Pt(IPr)(SnBu3 t)(H), 1 [IPr = N-heterocylic carbene ligand N,N ′-bis-(2,6-(diisopropyl) phenyl)imidazol-2-ylidene] with Ru5(μ5-C)(CO)15, 2, in 1.2:1 (and 2.2:1) ratio in benzene solvent at refluxing temperature afforded the octahedral monoplatinum–pentaruthenium cluster complexes PtRu5(IPr)(CO)15(μ6-C), 3 in 54 % (10 %) yield, PtRu5(IPr)(CO)14(H)2(μ6-C), 4 in 6 % (10 %) yield and the diplatinum–pentaruthenium cluster complex Pt2Ru5(IPr)2(CO)15(μ6-C), 5 in 2 % (36 %)yield. Complex 3 readily reacts with H2 at room temperature to give complex 4. Compound 5 exhibits dynamical activity in solution where the two Pt(IPr) groups are exchanging rapidly. All three compounds were structurally characterized by single-crystal X-ray diffraction analyses.

KW - Bimetallic

KW - Cluster

KW - Interconversion

KW - N-heterocylic carbene

KW - Platinum

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