Binaphthyl-Based Chiral Macrocyclic Hosts for the Selective Recognition of Iodide Anions
Zong-Cheng Wang1, Ying-Zi Tan1, Lin-Li Tang1
1Department of Biology and Chemistry, Hunan Universityof Science and Engineering, Yongzhou 415199, China.
Abstract:
In this study, we explorethe synthesis of binaphthyl-based chiral macrocyclic hosts for the first time. They exhibited the selective recognition abilities of iodide anions which can be favored over those of other anions (AcO-, NO3-, ClO4-, HSO4-, Br-, PF6-, H2PO4-, BF4-, and CO3F3S-), as confirmed by UV-vis, HRMS, and 1H NMR spectroscopy experiments, as well as DFT calculations. Neutral aryl C-H···anion interactions play an important role in the formation complexes. The recognition process can be observed by the naked eye.
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