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Issue 23, 2007
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Two-photon absorption of Zn(II) octupolar molecules

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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, 11 493).

Graphical abstract: Two-photon absorption of Zn(ii) octupolar molecules

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The article was received on 22 Dec 2006, accepted on 13 Mar 2007 and first published on 13 Apr 2007

Article type: Paper
DOI: 10.1039/B618709A
Citation: Phys. Chem. Chem. Phys., 2007,9, 2999-3005

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    Two-photon absorption of Zn(II) octupolar molecules

    S. Mazzucato, I. Fortunati, S. Scolaro, M. Zerbetto, C. Ferrante, R. Signorini, D. Pedron, R. Bozio, D. Locatelli, S. Righetto, D. Roberto, R. Ugo, A. Abbotto, G. Archetti, L. Beverina and S. Ghezzi, Phys. Chem. Chem. Phys., 2007, 9, 2999
    DOI: 10.1039/B618709A

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