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Crystal structure and luminescent properties of bis-[2,6-dimethyl-3-(pyridin-2-yl-κ
Ki-Min Park1, Suk-Hee Moon2, Youngjin Kang3
1Research Institute of Natural Science, Gyeongsang National University, Jinju 52828, Republic of Korea.
Abstract:
In the solvated title compound, [Ir(C12H11N2)2(C11H19O2)]·CH3CO2C2H5, the IrIII ion adopts a distorted octa-hedral 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-tetra-methylhepta-ne-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 inter-actions between inversion-related IrIII complexes are present, forming a dimeric structure. The title complex shows bright bluish-green emission with good quantum efficiency in solution at room temperature.
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