Synthesis And Optical Properties Of The Compound With A Push-pull Electronic Structure

In this paper, a series of phenyl thiourea derivatives with push-pull electronicstructure were synthesized by our research group get a series of optical tests and then wedesign, synthesis several “push-pull” chalcone derivatives which elemental analysis, IR,NMR and other methods have been used for their structural characterization. We used thethiourea derivatives in the organic/water phase to get ions recognition, and the probe3and probe4which have a good ability to identify ion and are used in the practicalapplication. The results showed that the thiourea derivatives with containing N, N-dimethyl group should be having a relatively excellent property, and the probe3can beused to detect I-in the organic phase with fluorescence, what’s more the complex whichprobe3combined with I-also can identify the Ag+, at he same time probe4can identifythe Cr3+in the inorganic phase. They are better than thiourea derivatives which containingmethoxy group whether in the ability to identify or in the application prospect. Because thesynthesized chalcone derivative4-fluoro-4’-N, N-dimethyl chalcone (probe5) has arelatively excellent fluorescence property, we apply the probe5to detect ions in theaqueous phase, it can be sensitive to identify Fe3+, while can also identify the toxic CN-, ithas a good prospect in biological probe direction. Design and synthesis of three chalconederivatives have a good solubility and strong single-photon fluorescence property, two ofthem exhibit a good nonlinear absorption property through the study of nonlinear opticalproperty, they have a potential application in the laser protection.