title: One- and two-photon absorption and emission properties of a Zn(II) chemosensor.
abstract: This paper presents the synthesis and two photon-induced absorption (TPA) properties of a functionalized distyrylbenzene (DSB) 1 containing a tetra-azacyclododecane (cyclen) receptor for Zn(II). The influence of Zn(II) on one- and two-photon absorption characteristics of 1 has been investigated in dimethyl sulfoxide. The experiments show that the TPA action spectrum of uncomplexed 1, at 750 nm employing nanosecond-long excitation pulses, is 5 times more intense than that of the complexed form. This moderate contrast between the bound and unbound species confirms, however, the potential of this design scheme for the development of molecular structures with enhanced sensitivity and contrast to be used as Zn(II) sensors through TPA-induced fluorescence microscopy.
authors.affiliation: Dipartimento di Scienze Chimiche, Unità di Ricerca INSTM e ITM-CNR, Università di Padova, Via Marzolo 1, I-35131 Padova, Italy.
authors.forename: Renato
authors.initials: R
authors.lastname: Bozio
authors.forename: Elio
authors.initials: E
authors.lastname: Cecchetto
authors.forename: Graziano
authors.initials: G
authors.lastname: Fabbrini
authors.forename: Camilla
authors.initials: C
authors.lastname: Ferrante
authors.forename: Michele
authors.initials: M
authors.lastname: Maggini
authors.forename: Enzo
authors.initials: E
authors.lastname: Menna
authors.forename: Danilo
authors.initials: D
authors.lastname: Pedron
authors.forename: Raffaele
authors.initials: R
authors.lastname: Riccò
authors.forename: Raffaella
authors.initials: R
authors.lastname: Signorini
authors.forename: Michele
authors.initials: M
authors.lastname: Zerbetto
mesh_terms: D000042:Absorption; D001555:Benzene Derivatives / Q000737:chemistry; D002413:Cations, Divalent; D000080027:Cyclams; D005456:Fluorescent Dyes / Q000737:chemistry*; D006571:Heterocyclic Compounds / Q000737:chemistry; D008856:Microscopy, Fluorescence; D008956:Models, Chemical; D009942:Organometallic Compounds / Q000737:chemistry*; D017785:Photons; D013056:Spectrophotometry, Ultraviolet; D013343:Styrenes / Q000737:chemistry; D015032:Zinc / Q000737:chemistry*
chemical_list: D001555:Benzene Derivatives; D002413:Cations, Divalent; D000080027:Cyclams; D005456:Fluorescent Dyes; D006571:Heterocyclic Compounds; D009942:Organometallic Compounds; D013343:Styrenes; C507243:distyrylbenzene; C038072:cyclen; D015032:Zinc