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Issue 11, 2013
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Molecular materials for switchable nonlinear optics in the solid state, based on ruthenium-nitrosyl complexes

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Abstract

The promising class of (polypyridine-ruthenium)-nitrosyl complexes capable of high yield Ru–NO/Ru–ON isomerization is targeted as a potential molecular device for the achievement of complete NLO switches in the solid state. A computational investigation conducted at the PBE0/6-31+G** DFT level for benchmark systems of general formula [R-terpyridine-RuIICl2(NO)](PF6) (R being a substituent with various donating or withdrawing capabilities) leads to the suggestion that an isomerization could produce a convincing NLO switch (large value of the βON/βOFF ratio) for R substituents of weak donating capabilities. Four new molecules were obtained in order to test the synthetic feasibility of this class of materials with R = 4′-p-bromophenyl, 4′-p-methoxyphenyl, 4′-p-diethylaminophenyl, and 4′-p-nitrophenyl. The different cis-(Cl,Cl) and trans-(Cl,Cl) isomers can be separated by HPLC, and identified by NMR and X-ray crystallographic studies.

Graphical abstract: Molecular materials for switchable nonlinear optics in the solid state, based on ruthenium-nitrosyl complexes

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Publication details

The article was received on 24 May 2013, accepted on 09 Jul 2013 and first published on 09 Jul 2013


Article type: Paper
DOI: 10.1039/C3NJ00558E
Citation: New J. Chem., 2013,37, 3518-3527
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    Molecular materials for switchable nonlinear optics in the solid state, based on ruthenium-nitrosyl complexes

    J. Akl, C. Billot, P. G. Lacroix, I. Sasaki, S. Mallet-Ladeira, I. Malfant, R. Arcos-Ramos, M. Romero and N. Farfán, New J. Chem., 2013, 37, 3518
    DOI: 10.1039/C3NJ00558E

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