ABSTRACT A new bimodal triazole-bridged pyrene-appended calix[4]arene 2g has been synthesised and characterised and complexation studies showed that the binding of Cd2+ and Zn2+ occurs as demonstrated by enhanced monomer and declining excimer emission fluorescence spectral changes. With several other metal ions, quenching of both monomer and excimer emissions occurred. The observed monomer formation in the fluorescence spectra seen with Zn2+ and Cd2+ is possibly linked not just to the diminished parallel orientations of the pyrene rings but with the magnitude of the resulting HOMO-LUMO gaps and other parameters measured by DFT calculations. Graphical abstract

中文翻译：

---

作为 Zn2+ 和 Cd2+ 荧光化学传感器的双（芘）附加“封端”三唑连接的杯[4]芳烃的合成、超分子络合和 DFT 研究

摘要 合成并表征了一种新的双峰三唑桥连芘附加杯[4]芳烃 2g，复合研究表明 Cd2+ 和 Zn2+ 的结合发生，如单体增强和准分子发射荧光光谱变化下降所证明的那样。对于其他几种金属离子，单体和准分子发射都发生了猝灭。在 Zn2+ 和 Cd2+ 的荧光光谱中观察到的单体形成可能不仅与芘环平行取向的减少有关，而且与由此产生的 HOMO-LUMO 间隙的大小和 DFT 计算测量的其他参数有关。图形概要