Crystal structure and luminescent properties of bis[2,6-dimethyl-3-(pyridin-2-yl-κ N)pyridin-4-yl-κ C 4](2,2,6,6-tetramethylheptane-3,5-dionato-κ 2 O, O ′)iridium(III) ethyl acetate monosolvate

초록

In the solvated title compound, [Ir(C₁₂ H₁₁ N₂)₂ (C₁₁ H₁₉ O₂)]·CH₃ CO₂ C₂ H₅, the Ir III ion adopts a distorted octahedral coordination environment resulting from its coordination by two C,N-chelating 2,6-dimethyl-3-(pyridin-2-yl)pyridin-4-yl ligands and one O,O′-chelating 2,2,6,6-tetramethylheptane-3,5-dionate ligand. The C,N-chelating ligands are perpendicular to each other [dihedral angle between the least-squares planes = 87.86 (5)°] and are arranged in a cis-C,C′ and trans-N,N′ fashion. In the crystal, pairwise C-H..π interactions between inversion-related Ir III complexes are present, forming a dimeric structure. The title complex shows bright bluish-green emission with good quantum efficiency in solution at room temperature. © 2018 Park et al.

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