Cyanide Ligand Assembly by Carbon Atom Transfer to an Iron Nitride
journal contributionposted on 21.09.2017, 00:00 by Jorge L. Martinez, Hsiu-Jung Lin, Wei-Tsung Lee, Maren Pink, Chun-Hsing Chen, Xinfeng Gao, Diane A. Dickie, Jeremy M. Smith
The new iron(IV) nitride complex PhB(iPr2Im)3FeN reacts with 2 equiv of bis(diisopropylamino)cyclopropenylidene (BAC) to provide PhB(iPr2Im)3Fe(CN)(N2)(BAC). This unusual example of a four-electron reaction involves carbon atom transfer from BAC to create a cyanide ligand along with the alkyne iPr2N–CC–NiPr2. The iron complex is in equilibrium with an N2-free species. Further reaction with CO leads to formation of a CO analogue, which can be independently prepared using NaCN as the cyanide source, while reaction with B(C6F5)3 provides the cyanoborane derivative.