Synthesis and Optical Properties of 2,13-Dibenzothiazol-2′-yldibenzo[b,k]-18-crown-6

✍ Scribed by Zhi-Bin HUANG; Sung-Hong KIM; Da-Qing SHI; Tai-Jong KANG; Seung-Hyun CHANG

• Publisher: John Wiley and Sons
• Year: 2008
• Tongue: English
• Weight: 126 KB
• Volume: 26
• Category: Article
• ISSN: 0256-7660
• DOI: 10.1002/cjoc.200890194

✦ Synopsis

Abstract

A new crown ether of 2,13‐dibenzothiazol‐2′‐yldibenzo[b,k]‐18‐crown‐6 was synthesized from 2,13‐diformyl‐ dibenzo[b,k]‐18‐crown‐6 with 2‐aminothiophenol. The binding behavior and the optical properties of the crown ether were examined through UV‐visible spectroscopy and fluorescence spectroscopy. When complexed with Na^+^, K^+^, Rb^+^ and Cs^+^ ions, it led to intramolecular charge transfer and caused the changes of the fluorescence spectra. The protonation of the crown ether was also studied.