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摘要
In order to prepare D-pi-A-pi-D analogs have the ability to use in optical applications, 4H-pyran fragment conjugated with two styryl groups and their combination play pi-spacer role between donor and acceptor groups. Malononitrile and 1, 3-indandione play as acceptor groups and ferrocene nuclei was chosen as donor group. H-1 and C-13 NMR, FT-IR and mass spectroscopy and CHN analysis were used to confirm the structure of synthesized compounds. Electrochemical, photochemical and photophysical properties of these compounds were studied. The third order nonlinear refractive index, n(2), and nonlinear absorption coefficient, beta, of synthesized chromophores were assessed by the open and closed aperture Z-scan measurements, respectively. The quantum chemistry study was performed on synthesized compounds with the DFT approach. The theoretical and experimental results show that these compounds can be considered as candidates to be used in optical applications.
- 出版日期2017-10-1
