Hydrazine
Capture and N–N Bond Cleavage at
Iron Enabled by Flexible Appended Lewis Acids

Kiernicki, John J.; Zeller, Matthias; Szymczak, Nathaniel K.

doi:10.1021/jacs.7b11465.s002

ja7b11465_si_002.pdf (12.75 MB)

Hydrazine Capture and N–N Bond Cleavage at Iron Enabled by Flexible Appended Lewis Acids

journal contribution

posted on 2017-12-11, 19:49 authored by John J. Kiernicki, Matthias Zeller, Nathaniel K. Szymczak

Incorporation of two 9-borabicyclo[3.3.1]nonyl substituents within the secondary coordination sphere of a pincer-based Fe(II) complex provides Lewis acidic sites capable of binding 1 or 2 equiv of N₂H₄. Reduction of the 1:1 Fe:N₂H₄ species affords a rare Fe(NH₂)₂ complex in which the amido ligands are stabilized through interactions with the appended boranes. The NH₂ units can be released as NH₃ upon protonation and exchanged with exogenous N₂H₄.