Structural and Spectroscopic Characterization of an Unprecedented Cationic Transition‐Metal η1‐Silane Complex

No room for side-on: In the complex shown, Et3SiH is bound to the cationic IrIII center in an unprecedented end-on fashion through the SiH bond with no appreciable metal–silicon interaction (white H, green Si, pink Ir, red O, orange P, gray C). The long Ir⋅⋅⋅Si distance of 3.346(1) Å is 0.97 Å greater than the sum of the covalent radii of Ir and Si. DFT studies indicate that the tBu substituents on the bidentate phosphorus ligand dictate the coordination mode of the silane.