title: Two-photon absorption of Zn(II) octupolar molecules.
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).
authors.affiliation: Dipartimento di Scienze Chimiche e UdR INSTM di Padova, Università di Padova, Padova, Italy.
authors.forename: Simone
authors.initials: S
authors.lastname: Mazzucato
authors.forename: Ilaria
authors.initials: I
authors.lastname: Fortunati
authors.forename: Sara
authors.initials: S
authors.lastname: Scolaro
authors.forename: Michele
authors.initials: M
authors.lastname: Zerbetto
authors.forename: Camilla
authors.initials: C
authors.lastname: Ferrante
authors.forename: Raffaella
authors.initials: R
authors.lastname: Signorini
authors.forename: Danilo
authors.initials: D
authors.lastname: Pedron
authors.forename: Renato
authors.initials: R
authors.lastname: Bozio
authors.forename: Danika
authors.initials: D
authors.lastname: Locatelli
authors.forename: Stefania
authors.initials: S
authors.lastname: Righetto
authors.forename: Dominique
authors.initials: D
authors.lastname: Roberto
authors.forename: Renato
authors.initials: R
authors.lastname: Ugo
authors.forename: Alessandro
authors.initials: A
authors.lastname: Abbotto
authors.forename: Graziano
authors.initials: G
authors.lastname: Archetti
authors.forename: Luca
authors.initials: L
authors.lastname: Beverina
authors.forename: Sergio
authors.initials: S
authors.lastname: Ghezzi