Azido(eta(5)-pentamethylcyclopentadienyl)[2-(pyridin-2-yl)phenyl]iridium(III)

In the title compound, [Ir(C10H15)(C11H8N)(N-3)], the Ir-III ion is coordinated by three anionic ligands, namely, pentamethylcyclopentadienyl (Cp*(-)), 2-(pyridin-2-yl)phenyl (ppy(-)) and azide (N-3(-)), and adopts a three-legged piano-stool geometry The coordination mode of N-3- is typical for Cp*Ir-III-N-3 complexes, with an Ir-N(N-3) bond length of 2.125 (2) angstrom and an Ir-N=N bond angle of 116.5 (2)degrees. The N-3(-) ligand is almost linear [N=N=N = 176.0 (3)degrees], and the N=N bond length between the central and coordinating N atom and that between the central and non-coordinating terminal N atom are 1.194 (3) and 1.157 (3) angstrom, respectively. For the ppy(-) ligand, the Ir-C and Ir-N bond lengths are 2.066 (3) and 2.079 (3) angstrom, respectively, which are rather close to each other, compared to the related Ir-III - or Rh-III - ppy complexes. The Ir-C(Cp*) bond lengths vary in the range 2.163 (2)-2.232 (2) angstrom, indicating a strong trans influence of the cyclo-metallated C-donor atom of the ppy(-) ligand.