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X-ray crystal structure of HN-1. Thermal ellipsoids are drawn at the 50% probability with solvent molecules, counter ion and hydrogen atoms are eliminated for clarity. Selected bond distances (Å): Ir1–C1, 2.007(3); Ir1–C14, 2.008(3); Ir1–N1, 2.061(3); Ir1–N2, 2.064(3); Ir1–N3, 2.128(3); Ir1–N4, 2.143(3).
