Metathesis reactions of neodymium and dysprosium diiodide-hydrides with organopotassium compounds: structure of [K(THF)₂][(η⁵-C₅H₅)₃Nd(μ-H)Nd(η⁵-C₅H₅)₃] and [K(THF)₂][Nd₃(PhO)₁₀(THF)₄]

Abstract

Reaction of neodymium iodide-hydride NdI₂H with CpK in THF affords organoneodymium hydride [K(THF)₂][(η⁵-C₅H₅)₃Nd(μ-H)Nd(η⁵-C₅H₅)₃] (1). Dysprosium analog DyI₂H under the same conditions yields the known complex Cp₃Dy(THF). The reaction of NdI₂H with potassium phenoxide in THF affords the ionic cluster [K(THF)₂][Nd₃(PhO)₁₀(THF)₄] (2). In each case, interaction is accompanied by dihydrogen evolution. The molecular structures of 1 and 2 have been defined by X-ray diffraction analysis. The interaction of NdI₂H with CpNa or CpLi gives an intractable mixture of products. The compounds PhC≡CK, NaN(SiMe₃)₂, KN(SiMe₃)₂, K(), and C₅Me₅K are inert toward NdI₂H.

Keywords:

• Neodymium
• Dysprosium
• Diiodides
• Hydrides
• Phenoxide

Acknowledgements

This work was supported by the Grant of Federal Agency on Sciences and Innovations of Russian Federation (Project No. 02.513.11.3207) and the Russian Foundation of Basic Research (Grant Nos 07-03-00248, 06-03-32728).