Synthesis of Biindole-Diazo conjugates as a colorimetric anion receptor

Gang Woo Lee; Nam Kyun Kim; Kyu Sung Jeong

doi:10.1021/ol100830b

Synthesis of Biindole-Diazo conjugates as a colorimetric anion receptor

Gang Woo Lee, Nam Kyun Kim, Kyu Sung Jeong

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

A colorimetric anion receptor based on an indole scaffold has been synthesized by incorporating an azobenzene chromophore to the 5-position of indole. The receptor binds anions by hydrogen bonds which are effectively transmitted through resonance to the chromophore to give rise to color changes. The cyanide ion induced a pronounced color change from light yellow to reddish orange, but less intense or negligible changes were observed with the other anions examined here.

Original language	English
Pages (from-to)	2634-2637
Number of pages	4
Journal	Organic Letters
Volume	12
Issue number	11
DOIs	https://doi.org/10.1021/ol100830b
Publication status	Published - 2010 Jun 4

All Science Journal Classification (ASJC) codes

Biochemistry
Physical and Theoretical Chemistry
Organic Chemistry

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10.1021/ol100830b

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abstract = "A colorimetric anion receptor based on an indole scaffold has been synthesized by incorporating an azobenzene chromophore to the 5-position of indole. The receptor binds anions by hydrogen bonds which are effectively transmitted through resonance to the chromophore to give rise to color changes. The cyanide ion induced a pronounced color change from light yellow to reddish orange, but less intense or negligible changes were observed with the other anions examined here.",

author = "Lee, {Gang Woo} and Kim, {Nam Kyun} and Jeong, {Kyu Sung}",

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N2 - A colorimetric anion receptor based on an indole scaffold has been synthesized by incorporating an azobenzene chromophore to the 5-position of indole. The receptor binds anions by hydrogen bonds which are effectively transmitted through resonance to the chromophore to give rise to color changes. The cyanide ion induced a pronounced color change from light yellow to reddish orange, but less intense or negligible changes were observed with the other anions examined here.

AB - A colorimetric anion receptor based on an indole scaffold has been synthesized by incorporating an azobenzene chromophore to the 5-position of indole. The receptor binds anions by hydrogen bonds which are effectively transmitted through resonance to the chromophore to give rise to color changes. The cyanide ion induced a pronounced color change from light yellow to reddish orange, but less intense or negligible changes were observed with the other anions examined here.

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Synthesis of Biindole-Diazo conjugates as a colorimetric anion receptor

Abstract

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