Nonlinear optical and two-photon absorption properties of octupolar tris(bipyridyl)metal complexes

Christophe Feuvrie, Olivier Maury, Hubert Le Bozec*, Isabelle Ledoux, Joseph P. Morrall, Gulliver T. Dalton, Marek Samoc, Mark G. Humphrey

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    61 Citations (Scopus)

    Abstract

    The linear (absorption and emission) and nonlinear optical (NLO) properties of a series of D3 [(Fe(II), Ru(II), Ni(II), Cu(II), Zn(II)] octupolar metal complexes featuring the 4,4'-bis[(dibutylamino)styryl]-2,2'- bipyridine ligand are reported. Zinc(II), nickel(II), and copper(II) complexes exhibit similar absorption spectra in the visible region (λ ILCT = 474-476 nm) which are assigned to intraligand charge-transfer (ILCT) bands. The quadratic and cubic NLO properties are strongly influenced by the nature of the metallic center. Harmonic light scattering studies at λ = 1.91 μm reveal that these chromophores display large first hyperpolarizabilities β1.91 in the range of (211-340) × 10-30 esu; replacing the Zn(II) metal ion by Ni(II) or Cu(II) results in a decrease of the static β0 coefficient by a factor of 1.5-1.6. Z-scan measurements at 765 and 965 nm reveal relatively large two-photon absorption cross-sections [650 < σ2 < 2200 GM], showing that both β and σ2 values can be tuned by simple modification of the metal ion.

    Original languageEnglish
    Pages (from-to)8980-8985
    Number of pages6
    JournalJournal of Physical Chemistry A
    Volume111
    Issue number37
    DOIs
    Publication statusPublished - 20 Sept 2007

    Fingerprint

    Dive into the research topics of 'Nonlinear optical and two-photon absorption properties of octupolar tris(bipyridyl)metal complexes'. Together they form a unique fingerprint.

    Cite this