title: Tuning the dipolar second-order nonlinear optical properties of 5-π-delocalized-donor-1,3-di(2-pyridyl)benzenes, related cyclometallated platinum(ii) complexes and methylated salts.
abstract: The synthesis and characterization of three 5-π-delocalized-donor-1,3-di(2-pyridyl)benzenes is reported along with that of their related cyclometallated platinum(ii) complexes and N,N-dimethylated iodide salts. The second-order nonlinear optical (NLO) properties of all the compounds have been determined by the Electric Field Induced Second Harmonic generation technique, showing how the μβEFISHabsolute value of 1,3-di(2-pyridyl)benzenes can be tuned by the nature of the substituent on position 5 of the central benzene ring, and greatly increased by cyclometallation to Pt or by N-methylation.
authors.affiliation: Dipartimento di Chimica dell'Università degli Studi di Milano, UdR-INSTM, via Golgi 19, I-20133, Milano, Italy. simona@thch.unipg.it.
authors.forename: Filippo
authors.initials: F
authors.lastname: Nisic
authors.affiliation: Dipartimento di Chimica dell'Università degli Studi di Milano, UdR-INSTM, via Golgi 19, I-20133, Milano, Italy. simona@thch.unipg.it and ISTM-CNR, via Golgi 19, I-20133, Milano, Italy.
authors.forename: Elena
authors.initials: E
authors.lastname: Cariati
authors.affiliation: Dipartimento di Chimica dell'Università degli Studi di Milano, UdR-INSTM, via Golgi 19, I-20133, Milano, Italy. simona@thch.unipg.it.
authors.forename: Alessia
authors.initials: A
authors.lastname: Colombo
authors.affiliation: Dipartimento di Chimica dell'Università degli Studi di Milano, UdR-INSTM, via Golgi 19, I-20133, Milano, Italy. simona@thch.unipg.it and ISTM-CNR, via Golgi 19, I-20133, Milano, Italy.
authors.forename: Claudia
authors.initials: C
authors.lastname: Dragonetti
authors.affiliation: Computational Laboratory for Hybrid/Organic Photovoltaics (CLHYO), CNR-ISTM, Via Elce di Sotto 8, I-06213, Perugia, Italy.
authors.forename: Simona
authors.initials: S
authors.lastname: Fantacci
authors.affiliation: Dipartimento di Chimica dell'Università degli Studi di Milano, UdR-INSTM, via Golgi 19, I-20133, Milano, Italy. simona@thch.unipg.it.
authors.forename: Eleonora
authors.initials: E
authors.lastname: Garoni
authors.affiliation: ISTM-CNR, via Golgi 19, I-20133, Milano, Italy.
authors.forename: Elena
authors.initials: E
authors.lastname: Lucenti
authors.affiliation: Dipartimento di Chimica dell'Università degli Studi di Milano, UdR-INSTM, via Golgi 19, I-20133, Milano, Italy. simona@thch.unipg.it.
authors.forename: Stefania
authors.initials: S
authors.lastname: Righetto
authors.affiliation: Dipartimento di Chimica dell'Università degli Studi di Milano, UdR-INSTM, via Golgi 19, I-20133, Milano, Italy. simona@thch.unipg.it and ISTM-CNR, via Golgi 19, I-20133, Milano, Italy.
authors.forename: Dominique
authors.identifier: http://orcid.org/0000-0001-9659-4760
authors.initials: D
authors.lastname: Roberto
authors.affiliation: Department of Chemistry, University of Durham, South Road, Durham, DH1 3LE, UK.
authors.forename: J A Gareth
authors.identifier: http://orcid.org/0000-0002-4688-3000
authors.initials: JA
authors.lastname: Williams