Tertiary phosphine complexes of nickel(0) and nickel(I). New dinitrogen complexes of nickel(0) |
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| Authors: | M Aresta CF Nobile A Sacco |
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| Institution: | Istituto di Chimica Generale ed Inorganica Via Amendola 173, Bari, Italy |
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| Abstract: | The reduction of NiX2(PCy3)2 (X = Cl, Br; PCy3 = tricyclohexylphosphine) in toluene with sodium sand under argon affords NiX(PCy3)2]2 or Ni(PCy3)3. In the same way starting from NiX2P2 X = Cl, Br; P = P(C2H5)3, P(CH2CH2CH2CH3)3, P(C2H5)2 C6H5] the tetracoordinate Ni(0) complexes NiP4 are obtained. These give NiP3(N2) under nitrogen. The electronic spectra of Ni(0) and Ni(I) complexes, both in the solid state and solution, are reported. |
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