Optical second order nonlinearities in new chromophores obtained by selective mono-reduction of dinitro precursors
| Autor: | Angela Tuzi, M. Fusco, Antonio Roviello, F. Cariati, A. De Maria, Roberto Centore, Barbara Panunzi, Ugo Caruso |
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| Přispěvatelé: | F., Cariati, Caruso, Ugo, Centore, Roberto, DE MARIA, Antonella, M., Fusco, Panunzi, Barbara, Roviello, Antonio, Tuzi, Angela |
| Rok vydání: | 2004 |
| Předmět: |
chemistry.chemical_classification
Organic Chemistry Nonlinear optics Second-harmonic generation Polymer Chromophore Photochemistry Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Inorganic Chemistry chemistry.chemical_compound chemistry Fluorenone Covalent bond Organic chemistry Molecule Thermal stability Electrical and Electronic Engineering Physical and Theoretical Chemistry Spectroscopy |
| Zdroj: | Optical Materials. 27:91-97 |
| ISSN: | 0925-3467 |
| DOI: | 10.1016/j.optmat.2004.02.011 |
| Popis: | Three new push–pull chromophores of potential interest in second order nonlinear optical applications were synthesized and characterized, also by EFISH determination of molecular second order NLO properties. The chromophores contain a phenyl-azo unit coupled with fluorenonic, stilbenic or 1,3,4-thia-diazolic groups and are OH-functionalized to prompt easy covalent insertion in polymer chains. The selective reduction of only one of the two chemically equivalent nitro groups in the starting precursors is the key step of the synthetic pathway affording the chromophores. These show good chemical and thermal stability. The X-ray structural determination of the fluorenone derived chromophore is also reported. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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