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Novel, asymmetrically shaped, pyrrole-based polyene chromophores were designed to obtain a large angle θ(μ,β max ) between the directions of the maximum first hyperpolarizability β max and the dipole moment μ, by introducing an asymmetric core pyrrole into the π-conjugated polyene bridge of the chromophore. Asymmetric N-substituted pyrrolic nonlinear optical chromophores based on configurationally...
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