Large quadratic hyperpolarizabilities with donor–acceptor polyenes exhibiting optimum bond length alternation: correlation between structure and hyperpolarizability

M Blanchard??Desce, V Alain…

Index: Blanchard-Desce; Alain; Bedworth; Marder; Fort; Runser; Barzoukas; Lebus; Wortmann Chemistry - A European Journal, 1997 , vol. 3, # 7 p. 1091 - 1104

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Citation Number: 347

Abstract

Abstract Donor–acceptor polyenes of various lengths, and that combine aromatic electron- donating moieties with powerful heterocyclic electron-withdrawing terminal groups, have been synthesized and characterized as efficient nonlinear optical (NLO) chromophores. Their linear and nonlinear optical properties have been investigated, and variations in these properties have been related to ground-state polarization (dipole μ) and structure. In ...