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Activation of hydrogen by palladium(0): Formation of the mononuclear dihydride complex trans-[Pd(H)2(IPr)(PCy3)]

S. Fantasia, J. D. Egbert, V. Jurčík, C. S. J. Cazin, H. Jacobsen, L. Cavallo, D. M. Heinekey, S. P. Nolan
Angew. Chem. Int. Ed. 2009, 48, 5182-5186.

In sharp contrast with the general behavior of Pd0 complexes, [Pd(IPr)(PCy3)] is able to activate the H-H bond. The resulting trans-[Pd(H)2(IPr)(PCy3)] is the first isolated mononuclear dihydride palladium compound. Its formation is supported by multinuclear NMR spectroscopy, density functional calculations, and X-ray diffraction studies. The stability and reactivity of this new species are examined.

Activation of hydrogen by palladium(0): Formation of the mononuclear dihydride complex trans-[Pd(H)2(IPr)(PCy3)]