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Structural Characterization and Dynamic Solution Behavior of the Disodio and Lithio−Sodio Geminal Organodimetallics [{{Ph<sub>2</sub>P(Me<sub>3</sub>Si)N}<sub>2</sub>CNa<sub>2</sub>}<sub>2</sub>] and [{{Ph<sub>2</sub>P(Me<sub>3</sub>Si)N}<sub>2</sub>CLiNa}<sub>2</sub>]
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Citations
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References
2006
Year
Double DeprotonationInorganic ChemistryChemical EngineeringDynamic Solution BehaviorStructural CharacterizationNeutral BisBiochemistryEngineeringNatural SciencesCoordination ComplexOrganic ChemistryMolecular ComplexChemistryInorganic MaterialInorganic SynthesisTitle Disodio ComplexSolution (Chemistry)Inorganic Compound
The title disodio complex may be prepared by the double deprotonation of a neutral bis(phosphinimine) ligand using 2 equiv of the strong base n-BuNa, whereas the mixed Li/Na derivative can be prepared by controlled sequential deprotonation, by transmetalation, or by mixing the homometallic analogues. The compounds form dimers with the ligands capping an Na4 square or a Li2Na2 rhomboid, and these are the first examples of R2C2- dianions containing a heavy alkali metal to be structurally characterized.
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