Relationship between structure and nonlinear optical properties of new bisazo chromophores. Theoretical and experimental study |
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Authors: | Irmina Zadrożna Ewa Kaczorowska |
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Affiliation: | (1) Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3, Warsaw, 00-664, Poland |
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Abstract: | Two new bisazo chromophores—derivatives of bis-2,2-(4-hydroxyphenyl)propane (bisphenol A), heterocyclic amines (2-aminobenzothiazole, and 2-amino-6-nitrobenzothiazole) and aniline—were synthesized. Nonlinear optical properties of these chromophores were studied by solvatochromic method (obtained compounds have βCT value ∼10−29 esu). Dependence among the structure of molecules, their dipole moments, and first hyperpolarizabilities was considered on the basis of semi-empirical calculations. A correlation between the measured and calculated β values was studied. The NLO chromophores were used as special monomers to synthesize copolyarylates. The basic characterization of obtained polymers was carried out. |
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Keywords: | Solvatochromism Nonlinear optical compounds Bisazo chromophores |
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