Two single-crystal structures of cucurbit[n]uril mediated supramolecular complexes were obtained in which [1+3] and [2+3] self-assembly modes are adopted due to the different sizes of cucurbit[7]uril and cucurbit[8]uril. An obvious red-shift in absorption and emission was observed compared to the guest molecule itself which makes them good biolabels.

中文翻译：

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用于生物成像的葫芦脲基超分子主客体复合物的单晶结构

得到葫芦[ n ]uril介导的两种单晶结构的超分子配合物，由于葫芦[7]uril和葫芦[8]尺寸不同，采用[1+3]和[2+3]自组装方式]乌里尔。与客体分子本身相比，观察到吸收和发射明显的红移，这使得它们成为良好的生物标记物。