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Issue 22, 2012
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New [(D-terpyridine)-Ru-(D or A-terpyridine)][4-EtPhCO2]2 complexes (D = electron donor group; A = electron acceptor group) as active second-order non linear optical chromophores

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Abstract

The dipolar and octupolar contributions of the second order nonlinear optical properties of [(4′-(C6H4-p-D)-2,2′:6′,2′′-terpyridine)-Ru-(4′-(C6H4-p-A)-2,2′:6′,2′′-terpyridine)]Y2 heteroleptic complexes (D and A are donor and acceptor groups, respectively), and related free terpyridines and homoleptic complexes, have been obtained by means of a comprehensive combination of Electric Field Induced Second Harmonic generation, Third Harmonic Generation, and Harmonic Light Scattering measurements. These results evidence how a metal can act as a bridge between two π-delocalized terpyridine moieties bearing a D and an A group, respectively, leading to a large quadratic hyperpolarizability hugely dominated by the octupolar contribution.

Graphical abstract: New [(D-terpyridine)-Ru-(D or A-terpyridine)][4-EtPhCO2]2 complexes (D = electron donor group; A = electron acceptor group) as active second-order non linear optical chromophores

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Publication details

The article was received on 24 Jan 2012, accepted on 03 Apr 2012 and first published on 03 Apr 2012


Article type: Paper
DOI: 10.1039/C2DT30183K
Citation: Dalton Trans., 2012,41, 6707-6714
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    New [(D-terpyridine)-Ru-(D or A-terpyridine)][4-EtPhCO2]2 complexes (D = electron donor group; A = electron acceptor group) as active second-order non linear optical chromophores

    A. Colombo, D. Locatelli, D. Roberto, F. Tessore, R. Ugo, M. Cavazzini, S. Quici, F. De Angelis, S. Fantacci, I. Ledoux-Rak, N. Tancrez and J. Zyss, Dalton Trans., 2012, 41, 6707
    DOI: 10.1039/C2DT30183K

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