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首页> 外文期刊>Chemistry: A European journal >Light- and Solvent-Controlled Self-Assembly Behavior of Spiropyran-Polyoxometalate-Alkyl Hybrid Molecules
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Light- and Solvent-Controlled Self-Assembly Behavior of Spiropyran-Polyoxometalate-Alkyl Hybrid Molecules

机译：螺吡喃-多金属氧酸酯-烷基杂化分子的光和溶剂控制的自组装行为

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摘要

A molecular photochromic spiropyran-polyoxometalate-alkyl organic-inorganic hybrid has been synthesized and fully characterized. The reversible switching of the hydrophobic spiropyran fragment to the hydrophilic merocyanine one can be easily achieved under light irradiation at different wavelengths. This switch changes the amphiphilic feature of the hybrid, leading to a light-controlled self-assembly behavior in solution. It has been shown that the hybrid can reversibly self-assemble into vesicles in polar solvents and irreversibly into reverse vesicles in non-polar solvents. The sizes of the vesicles and the reverse vesicles are both tunable by the polarity of the solvent, with the hydrophobic interactions being the main driving force.
机译：合成了分子光致变色螺吡喃-多金属氧酸酯-烷基有机-无机杂化物并对其进行了充分表征。在不同波长的光照射下，可以容易地实现疏水性螺吡喃片段向亲水性花菁的可逆转换。此开关更改了混合动力汽车的两亲特性，从而导致溶液中的光控自组装行为。已经表明，杂化物可以在极性溶剂中可逆地自组装成囊泡，而在非极性溶剂中不可逆地自组装成反向囊泡。囊泡和反向囊泡的大小均可通过溶剂的极性来调节，其中疏水相互作用是主要驱动力。

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