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Synthesis, structure and photochromic properties of hybrid molecules based on fullerene C60 and spiropyrans

机译:基于富勒烯C60和螺吡喃的杂化分子的合成,结构和光致变色特性

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The 1,3-dipolar cycloaddition of azomethine ylides to fullerene C _(60) was utilized to perform the synthesis of spiropyran-containing photochromic pyrrolidinofullerenes. It was found that photochromism is observed only for the hybrid compound containing an NO _(2) group in the pyran moiety, whereas the pyrrolidinofullerenes with Cl or F atoms in the spiropyran moiety do not possess photochromism. The photochromic fullerene hybrid is characterized by lower light sensitivity and photodegradation parameters compared to the initial spiropyrans, which can be attributed to reabsorption of activating radiation.
机译:利用氮杂甲酸钠的1,3-双极环加成芳烯C_(60)来进行含螺螺吡喃光致变色吡咯烷的合成。发现仅针对吡喃部分含有NO _(2)基团的杂化化合物观察到光致变色,而螺吡喃部分中的吡咯烷烃与Cl或F原子不具有光致弹。与初始螺丝吡喃相比,光致变色富勒烯杂种的特征在于光敏感性和光降解参数,这可能归因于激活辐射的重吸收。

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