In this work we present an investigation of the non-linear optical (NLO) properties of two octupolar chromophores: [Zn(4,4'-bis(dibutylaminostyryl)-[2,2']-bipyridine)(3)](2+) and [Zn(4,4'-bis((E)-2-(N-(TEG)pyrrol-2-yl) vinyl)-[2,2']-bipyridine)(3)](2+) with Zn(II) as the coordination center, using two-photon emission technique (TPE) in fs-pulse temporal regime. Compared to the free ligands, our results do not show a net increase in the two-photon absorption (TPA) cross-section for the octupolar complexes, once normalized to the ligand unit. This is in partial disagreement with a previous theoretical study investigating the first molecule where a significant increase of the TPA cross-section was predicted (X.J. Liu, et al., J. Chem. Phys., 2004, 120, 11493).
Mazzucato, S., Fortunati, I., Scolaro, S., Zerbetto, M., Ferrante, C., Signorini, R., et al. (2007). Two-photon absorption of Zn(II) octupolar molecules. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 9(23), 2999-3005 [10.1039/b618709a].
Two-photon absorption of Zn(II) octupolar molecules
ABBOTTO, ALESSANDRO;BEVERINA, LUCA;
2007
Abstract
In this work we present an investigation of the non-linear optical (NLO) properties of two octupolar chromophores: [Zn(4,4'-bis(dibutylaminostyryl)-[2,2']-bipyridine)(3)](2+) and [Zn(4,4'-bis((E)-2-(N-(TEG)pyrrol-2-yl) vinyl)-[2,2']-bipyridine)(3)](2+) with Zn(II) as the coordination center, using two-photon emission technique (TPE) in fs-pulse temporal regime. Compared to the free ligands, our results do not show a net increase in the two-photon absorption (TPA) cross-section for the octupolar complexes, once normalized to the ligand unit. This is in partial disagreement with a previous theoretical study investigating the first molecule where a significant increase of the TPA cross-section was predicted (X.J. Liu, et al., J. Chem. Phys., 2004, 120, 11493).
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