...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical >Highly Sensitive and Selective Fluorescent Sensor for Zinc Ion Based on a New Diarylethene with a Thiocarbamide Unit
【24h】

Highly Sensitive and Selective Fluorescent Sensor for Zinc Ion Based on a New Diarylethene with a Thiocarbamide Unit

机译：基于具有硫脲基单元的新型二芳基乙烯的锌离子高灵敏度和选择性荧光传感器

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A new photochromic diarylethene has been synthesized by using thiocarbamide as a functional group and perfluordiarylethene as photoswitching trigger via a Salicylidene Schiff base linkage. The diarylethene could he used as a multicontrollable fluorescence switch when triggered by base/acid, light, and metal ions. The results showed that the absorption and fluorescence characteristics of the diarylethene exhibited sequence-dependent responses through efficient interaction of specific salicylidene Schiff base-linked thiocarbamide unit with tetrabutylammonium hydroxide/trifluoroacetic acid and photoirradiation. Moreover, the diarylethene was highly selective toward Zn2+ ion with obvious fluorescence change from light blue to bright yellow in acetonitrile. The deprotonated form of the diarylethene had typical photochromism, but it showed an irreversible photocyclization reaction after binding with Zn2+. Finally, two logic circuits were constructed by using the fluorescence intensity as the output signal with the inputs of the combinational stimuli of light and chemical species.
机译：一种新的光致变色二芳基乙烯通过使用水杨基席夫碱键作为官能团和全氟二芳基乙烯作为光开关触发来合成。当被碱/酸，光和金属离子触发时，二芳基乙烯可以用作多控荧光开关。结果表明，通过特定的水杨叉席夫碱连接的硫代氨基甲酸酯单元与氢氧化四丁基铵/三氟乙酸的有效相互作用和光照射，二芳基乙烯的吸收和荧光特性表现出序列依赖性响应。此外，二芳基乙烯对Zn2 +离子具有高度选择性，并且在乙腈中从浅蓝色到亮黄色具有明显的荧光变化。二芳基乙烯的去质子化形式具有典型的光致变色现象，但在与Zn2 +结合后显示出不可逆的光环化反应。最后，通过将荧光强度作为输出信号以及光和化学物种的组合刺激的输入，构造了两个逻辑电路。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号