Design and Synthesis of Novel Chromophore with Multi-Carboxyl Groups

文献类型： 外文期刊

第一作者： Chen, Haiying

作者： Chen, Haiying;Ouyang, Canbin

作者机构：

关键词： Chromophore;multi-carboxyl;second-order nonlinear optics;water solubility

期刊名称：POLYCYCLIC AROMATIC COMPOUNDS （ 影响因子：3.744； 五年影响因子：3.584 ）

ISSN： 1040-6638

年卷期： 2018 年 38 卷 2 期

页码：

收录情况： SCI

摘要： In order to explore the application of organic conjugated small molecules in bioimaging, a novel functional chromophore with A--D--A structure (Cr-3) was synthesized through Knoevenagel condensation reaction, consisting of carbazole unit as electron donor and cyanoacetic acid as electron acceptor groups. To improve the water solubility of this conjugated molecule, three carboxyl groups were introduced to chromophore Cr-3. Compared to the traditional D--A chromophores, chromophore Cr-3 showed the great improvement in water with the solubility of 2000ppm. Also, the thermal stability of chromophore Cr-3 was also studied. The thermal decomposition temperature (Td) of Cr-3 was approximately 180 degrees C, which was attributed to the dehydration of the carboxyl groups. Though the second harmonic generation (SHG) effect was not very high, it is large enough for the detection of SHG signal in water solution (0.28pm/V).

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