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Inorg Chem. 2013 Jul 15;52(14):7987-94. doi: 10.1021/ic400541e. Epub 2013 Jun 28.

Linear and nonlinear optical properties of tris-cyclometalated phenylpyridine Ir(III) complexes incorporating π-conjugated substituents.

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Institut des Sciences Chimiques de Rennes, UMR 6226 CNRS- Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France.


The synthesis, luminescence, and nonlinear optical properties of a new series of Ir(ppy)3 (ppy = 2-phenylpyridine) complexes incorporating π-extended vinyl-aryl substituents at the para positions of their pyridine rings are reported. Appropriate substitution of the pyridyl rings allows the tuning of the luminescence properties and the second-order nonlinear optical response of this unusual family of three-dimensional chromophores. Theoretical calculations were performed to evaluate the dipole moments, to gain insight into the electronic structure, and to rationalize the observed optical properties of the investigated complexes.


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