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Tricyanopyrroline-based nonlinear optical chromophores bearing a thienyl or phenyl group perpendicular to the long molecular axis, so as to separate the conjugation planes of the parent chromophore, were synthesized. The incorporation of such a lateral group into the molecular backbone of the colorant, together with the use of a strong tricyano-based acceptor moiety influenced nonlinear optical character...
We have prepared a phenothiazine-based nonlinear optical (NLO) chromophore that displays a fairly high microscopic nonlinearity through intramolecular charge transfer. The phenothiazine unit plays important roles of contributing its high electron donating ability and connecting the resonance pathway through a conjugative effect in the cyclized ring adjacent to the aromatic ring. Theoretical calculations...
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