Synthesis and Optical Properties of 2,13‐Dibenzothiazol‐2′‐yldibenzo[b,k]‐18‐crown‐6 |
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| Authors: | Zhi‐Bin HUANG Sung‐Hong KIM Da‐Qing SHI Tai‐Jong KANG Seung‐Hyun CHANG |
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| Affiliation: | 1. Tel.: 027‐87543232;2. Fax: 086‐027‐87543632;3. Analysis Research Division, Daegu Center, Korea Basic Science Institute, Daegu 702‐701, Korea;4. College of Chemistry and Chemical Engineering, Suzhou University, Suzhou, Jiangsu 215123, China;5. Department of Chemistry, Daegu University, Kyongbuk 712‐714, Korea |
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| 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. |
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| Keywords: | crown ether absorption spectra fluorescence spectra |
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