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

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

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 ligand...

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Veröffentlicht in:Journal of the American Chemical Society 2017-12, Vol.139 (50), p.18194-18197
Hauptverfasser: Kiernicki, John J, Zeller, Matthias, Szymczak, Nathaniel K
Format: Artikel
Sprache:eng
Schlagworte:
Coordination Complexes - chemistry
Hydrazines - chemistry
Iron - chemistry
Lewis Acids - chemistry
Molecular Structure
Nitrogen - chemistry
Oxidation-Reduction
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Zusammenfassung: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.
ISSN:0002-7863
1520-5126
DOI:10.1021/jacs.7b11465