Simple iron tetraphosphine species have been of great interest for their ability to activate N2. Highly reduced iron species of this nature have been known to prefer CH-activation of the ligand scaffold in competition with low valent iron (e.g., (PMe3)4Fe0 ↔ cis-(PMe3)3FeII(H)(κ2P,C-[Me2PCH2])). We report an unusual iron tetraphosphine complex which undergoes a solvent dependent, fully reversible CH activation at two different positions on the ligand. The isomerization is also dependent on the presence of a secondary coordination sphere magnesium halide species. This unusual isomerization and characterization will be discussed.

Reversible ligand CH activation and isomerization at an iron(II) phosphine complex featuring pendant amines

254th National Meeting (2017)

The official archive and repository for all ACS Meetings & Expositions abstracts and select posters or presentations.