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为实现金属离子检测和分子水平的信息处理,合成了一类新型的含有功能配位基团的螺吡喃衍生物(SP1-SP4).研究发现:在没有UV光照的条件下,金属离子可以促进螺吡喃(SP2和SP4)开环并形成稳定可逆的络合物(MC-Mn+).紫外-可见吸收光谱研究表明,在UV光照前加入不同的金属离子会引起SP2和SP4的光学性质的特征变化,因此提供了一种简易的通过裸眼就能辨别金属离子的比色方法.荧光光谱研究表明,这类化合物能够高灵敏高选择性地检测锌离子.此外,基于吸收光谱和荧光光谱的变化,这类螺吡喃衍生物可以用于构建组合的逻辑门,执行分子水平的信息处理,从而展现了其在化学或环境传感和未来的分子计算机领域的潜在应用前景.
A new class of spiropyran derivatives containing functional coordination groups (SP1-SP4) was synthesized for the detection of metal ions and the information processing at the molecular level. The study found that in the absence of UV light, metal ions can Promoted the ring opening of spiropyrans (SP2 and SP4) and formed a stable and reversible complex (MC-Mn +) .Ultraviolet-Visible absorption spectroscopy studies showed that the addition of different metal ions prior to UV illumination caused the optical properties of SP2 and SP4 Thus providing a simple colorimetric method that can identify metal ions by the naked eye Fluorescence spectroscopy studies show that these compounds can detect zinc ions with high sensitivity and high selectivity.In addition, based on the absorption and fluorescence spectra These types of spiropyran derivatives can be used to construct combinatorial logic gates and perform molecular-level information processing, thereby demonstrating their potential applications in chemical or environmental sensing and in the future of molecular computers.