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Synthesis and Optical Properties of Cis ‐Dibenzothiazolyldibenzo‐24‐crown‐8 by Dong‐Jing Han; Zhi‐Bin Huang; Shun‐Jun Ji is a Chemistry article available to read on EtoBox.

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## Abstract New crown ether carrying two fluorionophores of __cis__‐dibenzothiazolyldibenzo‐24‐crown‐8 was synthesized from __cis__‐diformyldibenzo‐24‐crown‐8 and 2‐aminobenzenethiol. 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. With protonation using CF~3~COOH, the absorption bands and the fluorescence spectroscopy changed, the maximal fluorescence wavelengths red shifted and the fluorescence intensity with the maximum at 433 nm enhanced strongly. J. Heterocyclic Chem., (2011).

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Author

Dong‐Jing Han; Zhi‐Bin Huang; Shun‐Jun Ji

Publisher

Journal of Heterocyclic Chemistry; Wiley (John Wiley & Sons); Wiley-Blackwell; Wiley; FASEB (ISSN 0022-152X)

Published

2011

Language

EN

Field

Chemistry (Physical Sciences)