| 曹义,陆云.化学通报,2017,80(6):539-543. |
| 三种水杨醛类席夫碱的合成与性质研究 |
| Synthesis and Properties of Three Schiff Bases Containing Salicylaldehyde Units |
| 投稿时间：2016-10-20 修订日期：2016-11-09 |
| DOI： |
| 中文关键词: 水杨醛 席夫碱 取代基 光学性能 |
| 英文关键词:Salicylaldehyde Schiff base Substituents Optical properties |
| 基金项目:国家自然科学基金项目（NO. 21374046） |
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| 中文摘要: |
| 以取代水杨醛和3-氨基噻吩为原料合成了三种水杨醛类席夫碱，探讨了水杨醛结构中酚羟基对位取代基结构变化对于该席夫碱探针的激发态内质子转移过程、pH响应和金属离子响应的影响规律。研究结果表明，改变取代基团的吸、推电子能力，可调节酚氧负离子对活泼氢的束缚能，进而影响这些席夫碱分子的激发态内质子转移性能。同时，酚氧负离子的电荷密度也决定了其与阳离子的配合能力，从而表现出不同的席夫碱结构对金属离子的选择性和灵敏性。 |
| 英文摘要: |
| In this article, three kinds of Schiff bases containing salicylaldehyde units were synthesized from substituted salicylaldehydeand 3-aminothiophene. The effects of different substituents located in the para position of the phenolic hydroxyl groups on the proton transfer process, the pH response and the metal ion response of the Schiff base probe were investigated .The results showed that changing the electron withdrawing and pushing ability of the substituents can adjust the binding energy of the phenoxy anion to the active hydrogen, and then affect the excited proton transfer properties of these Schiff bases. At the same time, the charge density of the phenoxy anion also determined its ability to coordinate with the metal cation, thus showing different selectivity and sensitivity. |
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