Tetraphenylethene-Embedded Pillar[5]arene and [15]Paracyclophane: Distorted Cavities and Host–Guest Binding Properties |
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| Authors: | Yingtao Fan Kaitai Hu Junyi Nan Yingzhong Shen |
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| Affiliation: | Applied Chemistry Department, College of Material Science & Engineering, Nanjing University of Aeronautics & Astronautics, Nanjing 210016, China; (Y.F.); (K.H.); (J.N.) |
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| Abstract: | Two aggregation-induced emission (AIE) macrocycles (DMP[5]-TPE and PCP[5]-TPE) were prepared by embedding Tetraphenylethene (TPE) unit into the skeletons of Dimethoxypillar[5]arene (DMP[5]) and [15]Paracyclophane ([15]PCP) at meso position, respectively. In crystal, the PCP[5]-TPE showed a distorted cavity, and the incubation of hexane inside the DMP[5]-TPE cavity caused a distinct change in the molecular conformation compared to PCP[5]-TPE. There was no complexation between PCP[5]-TPE and 1,4-dicyanobutane (DCB). UV absorption experiments showed the distorted cavity of DMP[5]-TPE hindered association with DCB. |
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| Keywords: | pillararene, [15]Paracyclophane, aggregation-induced emission, meso functionalization, host– guest |
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