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

Research output: Contribution to journalArticle

4 Citations (Scopus)

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 Ru55-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)156-C), 3 in 54 % (10 %) yield, PtRu5(IPr)(CO)14(H)26-C), 4 in 6 % (10 %) yield and the diplatinum–pentaruthenium cluster complex Pt2Ru5(IPr)2(CO)156-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 languageEnglish (US)
Pages (from-to)1671-1681
Number of pages11
JournalJournal of Cluster Science
Volume27
Issue number5
DOIs
StatePublished - Sep 1 2016

Fingerprint

metal clusters
Carbon Monoxide
carbides
Carbides
Metals
Benzene
exchanging
Ligands
Single crystals
carbenes
imidazoles
X ray diffraction
Temperature
benzene
X-Ray Diffraction
ligands
single crystals
room temperature
diffraction
x rays

Keywords

  • Bimetallic
  • Cluster
  • Interconversion
  • N-heterocylic carbene
  • Platinum

ASJC Scopus subject areas

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

Cite this

Addition of Pt(IPr) Groupings to Ru5 Carbide Gives New Mixed-Metal Pt–Ru Cluster Complexes. / Koppaka, Anjaneyulu; Zollo, Vincent; Etezadi, Sedigheh; Lever, David C.; Captain, Burjor.

In: Journal of Cluster Science, Vol. 27, No. 5, 01.09.2016, p. 1671-1681.

Research output: Contribution to journalArticle

Koppaka, Anjaneyulu ; Zollo, Vincent ; Etezadi, Sedigheh ; Lever, David C. ; Captain, Burjor. / Addition of Pt(IPr) Groupings to Ru5 Carbide Gives New Mixed-Metal Pt–Ru Cluster Complexes. In: Journal of Cluster Science. 2016 ; Vol. 27, No. 5. pp. 1671-1681.
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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.",
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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.

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