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- Title
New Tetraruthenium Cluster from the Thermolysis of [Ru<sub>3</sub>(CO)<sub>10</sub>(μ-dppm)]: Crystal Structure of [HRu<sub>4</sub>(CO)<sub>9</sub>(μ<sub>3</sub>-PhPCH<sub>2</sub>PPh<sub>2</sub>) (μ<sub>3</sub>,η<sup>2</sup>:η<sup>1</sup>:η<sup>1</sup>-C<sub>6</sub>H<sub>4</sub>)]
- Authors
Al Mamun, Md. Abdullah; Islam, Tazul; Rajbangshi, Subas; Ghosh, Shishir; Richmond, Michael G.; Kabir, Shariff E.
- Abstract
Thermolysis of [Ru3(CO)10(μ-dppm)] (1) in refluxing benzene, followed by chromatographic separation by TLC, afforded the new cluster [HRu4(CO)9(μ3-PhPCH2PPh2)(μ3,η2:η1:η1-C6H4)] (10) in 7% yield in addition to the previously reported clusters [Ru3(CO)9{µ3-PhPCH2PPh(C6H4)}] (2) and [HRu4(CO)9(μ4-PhPCH2PPh2)(μ4,η6:η1:η1-C6H4)] (8) in 70% and 4% yields, respectively. The molecular structure of 10 has been determined by single-crystal X-ray diffraction analysis. Compound 10 possesses a Ru4 metal core where two of the six triangular faces are capped by μ3,η2:η1:η1-C6H4 (benzyne) and µ3-PhPCH2PPh2 ligands. Compound 10 transforms to the known cluster [HRu4(CO)9(μ3-PhPCH2PPh2)(μ4,η6:η1:η1-C6H4)] (8) slowly at 80 °C. The bonding in the new cluster 10 has been investigated by electronic structure calculations. A new tetraruthenium cluster has been isolated and structurally characterized from the thermolysis of [Ru3(CO)10(μ-dppm)] at 80 °C.
- Subjects
THERMOLYSIS; CRYSTAL structure; MOLECULAR structure; ELECTRONIC structure; X-ray diffraction
- Publication
Journal of Chemical Crystallography, 2024, Vol 54, Issue 1, p54
- ISSN
1074-1542
- Publication type
Article
- DOI
10.1007/s10870-023-00998-w