Spectroscopic Detection of a Hydrogen Fluoride Complex of Iridium

摘要

The work described here was performed to study the effect of introducing a non-ligating hydrogen-bonding functionality into the ligand sphere of a metal complex. We report the incorporation of an amino group into the benzoquinoline ligand of an iridium(III) complex and its effect on the stabilization of an HF ligand. Although there are examples of M--F...H hydrogen-bonding interactions, and more recently, of bifluoride complexes, we report here spectroscopic evidence at 183 K for what appears to be the first M--F--H...N interaction in which a molecule of HF is bound to the metal, stabilized by an intramolecular hydrogen bond.