A series of neutral Ir(2-phenylpyridine)3 derivatives substituted on the para-position of the pyridyl ligands with a π-conjugated substituent possessing different donor abilities has been prepared. Their two-photon absorption properties have been determined using the Z-scan technique. Such simple iridium(III) neutral complexes, which are easy to synthesize, show good two-photon absorption activity, with relevant TPA cross sections (the best is 750 GM), giving rise to multifunctional chromophores, since they present also high second-order NLO properties.
Two-photon absorption properties of simple neutral Ir(III) complexes / E. Garoni, A. Colombo, D. Roberto, C. Dragonetti, V. Guerchais, K. Kamada. - In: PHYSICAL CHEMISTRY CHEMICAL PHYSICS. - ISSN 1463-9076. - 26:9(2024 Feb 28), pp. 7837-7843. [10.1039/d3cp05489f]
Two-photon absorption properties of simple neutral Ir(III) complexes
E. Garoni;A. Colombo;D. Roberto;C. Dragonetti
;
2024
Abstract
A series of neutral Ir(2-phenylpyridine)3 derivatives substituted on the para-position of the pyridyl ligands with a π-conjugated substituent possessing different donor abilities has been prepared. Their two-photon absorption properties have been determined using the Z-scan technique. Such simple iridium(III) neutral complexes, which are easy to synthesize, show good two-photon absorption activity, with relevant TPA cross sections (the best is 750 GM), giving rise to multifunctional chromophores, since they present also high second-order NLO properties.
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