论文标题
可逆的1：1 C $ _ {60} $衍生品的包含复合物，$α$ - 和$β$ -Cyclodextrins对基于分子识别的传感和超分子组装的影响
Reversible 1:1 Inclusion Complexes of C$_{60}$ Derivatives in $α$- and $β$-Cyclodextrins Implications for Molecular Recognition-Based Sensing and Supramolecular Assembly
论文作者
论文摘要
我们开发了一种新颖的途径，可以高效地合成[60]富勒烯（c $ _ {60} $） - cyclodextrin（cd）复合物，该复合物被称为溶剂诱导的可逆识别。三种典型的复合物，即，c $ _ {60} $ -2GUA $^+$ - $ a $α$ -cd，c $ _ {60} $ -2GUA $^+$ - $^$ - $β$ -CD和C $ _ {60} $ -4OH- $β$ -CD，合成。通过傅立叶变换红外光谱，核磁共振（NMR），UV-VIS光谱和溶解度测试，充分证实了所有复合物的化学结构。此外，通过X射线衍射和热重分析记录了结晶状态和热降解。 NMR和ESI-MS结果清楚地证实了带有CD的C $ _ {60} $衍生物的1：1复合物。该途径克服了传统复合物的制备限制，并扩展到含$α$ -CD的准备复合物。据我们所知，这是第一次报告$α$ -CD相关的复合体。分析了所有三种复合物的C $ _ {60} $与CD之间的几何关系。我们可以实现高效率来获得固态复杂产品，这为复合物的广泛应用奠定了基础，并为在超分子组装中的c $ _ {60} $和CD的高级应用提供了足够的实验基础。值得注意的是，该复合物的溶剂引起的可逆性和离子不稳定性为基于分子识别的传感提供了新的可能性。
We developed a novel pathway to highly efficiently synthesize the [60]Fullerene (C$_{60}$)-Cyclodextrin (CD) complex, which is termed as solvent-induced reversible recognition. Three kinds of typical complexes, namely, C$_{60}$-2GUA$^+$-$α$-CD, C$_{60}$-2GUA$^+$-$β$-CD and C$_{60}$-4OH-$β$-CD, were synthesized. The chemical structure of all complexes was fully confirmed by Fourier transform infrared spectroscopy, Nuclear magnetic resonance (NMR), UV-Vis spectroscopy and the solubility test. Furthermore, crystalline status and thermal degradation were recorded by X-ray diffraction and Thermogravimetric analysis, respectively. Both the NMR and ESI-MS results clearly confirmed the 1:1 complex of C$_{60}$ derivatives with CD. The pathway overcame the preparation limitation of traditional complex, and was extended to the prepare $α$-CD containing complex. To the best of our knowledge, it is the first time to report $α$-CD related complex. The geometric relation between C$_{60}$ and CD for all the three kinds of complexes were analyzed. We can achieve high efficiency to obtain solid-state complex products, which lays the foundation for the widely practical application of complex and provides enough experimental basis for the advanced application of C$_{60}$ and CD in supramolecular assembly. Notably, the solvent-induced reversibility and ionic instability of the complex provides a new possibility for the molecular recognition-based sensing.
