Triazole-bearing oligo(ethylene glycol)-strapped zinc porphyrins as dual mode ion-binding receptors  

作　　者：Jeong Heon Lee Kyeong-Im Hong Woo Hyeok Choi Younghun Kim Woo-Dong Jang 

机构地区：[1]Department of Chemistry,Yonsei University,Seodaemun-Gu,Seoul,Korea

出　　处：《Smart Molecules》2023年第2期39-44,共6页智能分子（英文）

基　　金：supported by the National Research Foundation(NRF)grants(2020R1A2C3004520 and 2022R1A4A1020543)funded by the Ministry of Science,ICT&Future Planning(MSIP),Korea。

摘　　要：A series of triazole-bearing oligo(ethylene glycol)-strapped zinc porphyrins(PZn4EG and PZn5EG)have been prepared as artificial ion-binding receptors.Both PZn4EG and PZn5EG exhibit UV/Vis absorption changes in a solventdependent manner upon titration with halides and alkali metal ions.In tetrahydrofuran,both PZn4EG and PZn5EG exhibit spectral shifts upon the addition of halide ions through axial coordination,whereas the absorption does not change upon the addition of alkali metal ions.On the other hand,in 10%MeCN/CHCl3,the UV/Vis absorption spectra of both PZn4EG and PZn5EG do not change upon the addition of an excess amount of halide ions;however,PZn4EG and PZn5EG show selective alkali metal ion-binding properties in this solvent.PZn4EG and PZn5EG display dramatic color changes and spectral shifts upon the addition of Li+and K+,respectively.Because of the dramatic color changes that occurred upon binding,the determination of alkali metal ions would be possible.

关 键 词：crown ether ion receptor MACROCYCLE PORPHYRIN TRIAZOLE 

分 类 号：O62[理学—有机化学]