Effects of N₂ Binding Mode on Iron-Based Functionalization of Dinitrogen to Form an Iron(III) Hydrazido Complex.

ABSTRACT: Distinguishing the reactivity differences between N₂ complexes having different binding modes is crucial for the design of effective N₂-functionalizing reactions. Here, we compare the reactions of a K-bridged, dinuclear FeNNFe complex with a monomeric Fe(N₂) complex where the bimetallic core is broken up by the addition of chelating agents. The new anionic iron(0) dinitrogen complex has enhanced electron density at the distal N atoms of coordinated N₂, and though the N₂ is not as weakened in this monomeric compound, it is much more reactive toward silylation by (CH₃)₃SiI (TMSI). Double silylation of N₂ gives a three-coordinate iron(III) hydrazido(2-) complex, which is finely balanced between coexisting

SUBMITTER: McWilliams SF 

PROVIDER: S-EPMC6115203 | biostudies-literature | 2018 Jul

REPOSITORIES: biostudies-literature