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Small Metallacarborane <i>c</i><i>loso</i>-C<sub>2</sub>B<sub>4</sub>H<sub>6</sub>Ru(PPh<sub>3</sub>)<sub>2</sub>HCl Formed from <i>n</i><i>ido</i>-5,6-C<sub>2</sub>B<sub>8</sub>H<sub>12</sub> by Ruthenium-Mediated Polyhedral Contraction
35
Citations
29
References
2001
Year
Materials ScienceInorganic ChemistryRuthenium-mediated Polyhedral ContractionUnexpected Polyhedral ContractionNmr SpectroscopyEngineeringCoordination ComplexIsomeric 11-Vertex RuthenacarboranesMolecular ComplexOrganometallic CatalysisHydrogenChemistryCrystallographyMetal Chain Compound
RuCl2(PPh3)3 (1), when heated with an equimolar amount of nido-5,6-C2B8H12 (2) in toluene for a few hours, effected rather unexpected polyhedral contraction of 2 to give the new half-sandwich small ruthenacarborane closo-C2B4H6Ru(PPh3)2HCl (3) in moderate yield along with minor amounts of the two isomeric 11-vertex ruthenacarboranes [3-Cl-1-(η6-C6H5Me)-1,2,4-RuC2B8H9] (4) and [6-Cl-1-(η6-C6H5Me)-1,2,4-RuC2B8H9] (5) with open MC2B8 cluster structure. These new complexes were characterized by 1H, 13C, and 11B NMR spectroscopy and, in the case of 3 and 5, also by an X-ray crystal structure analysis.
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