Synthesis and two-photon properties of a multi-polar chromophore based on tetra-quinoxalinylethylene scaffold
作者:Tzu-Chau Lin、Yu-Jhen Huang、Bor-Rong Huang、Ying-Hsuan Lee
DOI:10.1016/j.tetlet.2011.10.019
日期:2011.12
synthesized via Pd-catalyzed Suzuki coupling and experimentally shown to possess strong solvent effect on its fluorescence emission and lifetime behaviors. The initial characterization also found that this dye molecule exhibits two-photon activities and effective optical power limiting properties in the near-IR region under the irradiation of nanosecond laser pulses.
A set of symmetrically substituted multibranched chromophores composed of three quinoxaline-based congeners has been synthesized and experimentally shown to possess strong and widely dispersed two-photonabsorptivities in the visible to near-IR region under the irradiation of femtosecond and nanosecond laser pulses. The electronic properties of the central π bridges incorporated into the final structures