The coordinative properties of perfluoro-15-crown-5 with monocations were investigated using ¹⁹F NMR spectroscopy and ion-selective electrodes with perfluoro-15-crown-5 as the matrix of their sensor membranes and the fluorophilic tetrakis[3,5-bis(perfluorohexyl)phenyl]borate as ion exchanger site. The results show that perfluoro-15-crown-5 interacts weakly but significantly with Na⁺ and K⁺. Assuming 1:1 stoichiometry, the formal complexation constants were determined to be 5.5 and 1.7 M⁻¹, respectively. This weak binding is consistent with the strong electron withdrawing nature of the many fluorine atoms in the perfluorocrown ether. While perfluorinated crown ethers have been known to form host–guest complexes with the anions O₂⁻ and F⁻ in the gas-phase, this is the first study that quantitatively confirms cation binding to a perfluorocrown ether.

使用¹⁹ F NMR 光谱和离子选择性电极研究 perfluoro-15-crown-5 与单阳离子的配位特性，perfluoro-15-crown-5作为其传感器膜的基质和亲氟四 [3,5-bis (全氟己基)苯基]硼酸酯作为离子交换剂位点。结果表明，perfluoro-15-crown-5 与 Na ⁺和 K ^{+ 的}相互作用微弱但显着。假设化学计量比为 1:1，确定的正式络合常数分别为 5.5 和 1.7 M ^-1。这种弱结合与全氟冠醚中许多氟原子的强吸电子性质一致。虽然已知全氟化冠醚与阴离子 O 形成主客体复合物₂ ^-和 F ^-在气相中，这是第一项定量证实阳离子与全氟冠醚结合的研究。