Persistent four-coordinate iron-centered radical stabilized by π-donation.

ABSTRACT: Dinuclear iron carbonyl complex 2, which contains an elongated unsupported Fe-Fe bond, was synthesized by the reaction between Fe₂(CO)₉ and phosphinyl radical 1. Thermal Fe-Fe bond homolysis led to the generation of a four-coordinate carbonyl-based iron-centered radical, 3, which is stabilized by π-donation. Complex 3 exhibited high reactivity toward organic radicals to form diamagnetic five-coordinate Fe(ii) complexes.

SUBMITTER: Sunada Y 

PROVIDER: S-EPMC5515065 | biostudies-literature | 2016 Jan

REPOSITORIES: biostudies-literature