Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 10 (October 2013)


metal-organic compounds



is5306 scheme

Acta Cryst. (2013). E69, m566    [ doi:10.1107/S1600536813026159 ]

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

K. Ariyoshi and T. Suzuki

Abstract: In the title compound, [Ir(C10H15)(C11H8N)(N3)], the IrIII ion is coordinated by three anionic ligands, namely, pentamethylcyclopentadienyl (Cp*-), 2-(pyridin-2-yl)phenyl (ppy-) and azide (N3-), and adopts a three-legged piano-stool geometry The coordination mode of N3- is typical for Cp*IrIII-N3 complexes, with an Ir-N(N3) bond length of 2.125 (2) Å and an Ir-N=N bond angle of 116.5 (2)°. The N3- ligand is almost linear [N=N=N = 176.0 (3)°], 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) Å, respectively. For the ppy- ligand, the Ir-C and Ir-N bond lengths are 2.066 (3) and 2.079 (3) Å, respectively, which are rather close to each other, compared to the related IrIII- or RhIII-ppy complexes. The Ir-C(Cp*) bond lengths vary in the range 2.163 (2)-2.232 (2) Å, indicating a strong trans influence of the cyclometallated C-donor atom of the ppy- ligand.


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