[Ni(NHC)₂ ] as a Scaffold for Structurally Characterized trans [H-Ni-PR₂ ] and trans [R₂ P-Ni-PR₂ ] Complexes.

ABSTRACT: The addition of PPh₂ H, PPhMeH, PPhH₂ , P(para-Tol)H₂ , PMesH₂ and PH₃ to the two-coordinate Ni⁰ N-heterocyclic carbene species [Ni(NHC)₂ ] (NHC=IiPr₂ , IMe₄ , IEt₂ Me₂ ) affords a series of mononuclear, terminal phosphido nickel complexes. Structural characterisation of nine of these compounds shows that they have unusual trans [H-Ni-PR₂ ] or novel trans [R₂ P-Ni-PR₂ ] geometries. The bis-phosphido complexes are more accessible when smaller NHCs (IMe₄ >IEt₂ Me₂ >IiPr₂ ) and phosphines are employed. P-P activation of the diphosphines R₂ P-PR₂ (R₂ =Ph₂

SUBMITTER: Sabater S 

PROVIDER: S-EPMC8518396 | biostudies-literature | 2021 Sep

REPOSITORIES: biostudies-literature