Issue 23, 2007
From the journal:

Physical Chemistry Chemical Physics

Two-photon absorption of Zn(ii) octupolar molecules†

Simone Mazzucato,a   Ilaria Fortunati,a   Sara Scolaro,a   Michele Zerbetto,a   Camilla Ferrante,*a   Raffaella Signorini,a   Danilo Pedron,a   Renato Bozio,a   Danika Locatelli,b   Stefania Righetto,b   Dominique Roberto,*b   Renato Ugo,b   Alessandro Abbotto,*c   Graziano Archetti,c   Luca Beverinac  and  Sergio Ghezzic  

* Corresponding authors

a Dipartimento di Scienze Chimiche e UdR INSTM di Padova, Università di Padova, Via Marzolo 1, Padova, Italy
E-mail: camilla.ferrante@unipd.it
Fax: (+39) 049 8275239
Tel: (+39) 049 8275148

b Dipartimento di Chimica Inorganica, Metallorganica e Analitica and Centro di Eccellenza CIMAINA dell’Università di Milano, UdR INSTM di Milano, via Venezian 21, Milano, Italy
E-mail: dominique.roberto@unimi.it
Fax: (+39) 02 5031 4405
Tel: (+39) 02 5031 4399

c Dipartimento di Scienze dei Materiali e Unità di Ricerca INSTM, Università di Milano-Bicocca, Via Cozzi 53, Milano, Italy
E-mail: alessandro.abbotto@unimib.it
Fax: (+39) 026 448 5400
Tel: (+39) 026 448 5227

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, 11 493).

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

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Article information

DOI
https://doi.org/10.1039/B618709A
Article type
Paper
Submitted
22 Dec 2006
Accepted
13 Mar 2007
First published
13 Apr 2007

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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