N-acyl triazenes as tunable and selective chemodosimeters toward cyanide ion
SCIE
SCOPUS
- Title
- N-acyl triazenes as tunable and selective chemodosimeters toward cyanide ion
- Authors
- Chung, Y; Lee, H; Ahn, KH
- Date Issued
- 2006-12-08
- Publisher
- AMER CHEMICAL SOC
- Abstract
- A novel type of chemodosimeters has been developed on the basis of a displacement reaction. N-Acyltriazenes are found to be highly selective and tunable chemodosimeters toward cyanide. When N-acetyltriazene 1a was titrated with various anions (-CN, F-, Cl-, AcO-, H2PO4-, -SCN, ClO4-, and HSO4-) in acetonitrile, significant absorption changes (from colorless to deep purple) resulted in the cases of -CN and F-, and small changes in the cases of AcO- and H2PO4-. N-Isopropanoyl-triazene 1b showed significant response only toward -CN, weaker response toward F-, and little response toward other anions in acetonitrile. Both of the triazenes 1a and 1b responded only to -CN in methanol-water, because of the analyte's strong nucleophilicity toward the acyl group and weak hydrogen-bonding ability as compared to other anions examined. The N-acyl-triazenes can be used for the naked eye detection of cyanide.
- Keywords
- ANION RECOGNITION; SYNTHETIC RECEPTORS; MEMBRANE ELECTRODE; SENSITIVE PROBES; CARBON-DIOXIDE; SENSORS; CHEMOSENSORS; HIGHLIGHTS; REACTANDS; ALCOHOLS
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/23696
- DOI
- 10.1021/JO061798T
- ISSN
- 0022-3263
- Article Type
- Article
- Citation
- JOURNAL OF ORGANIC CHEMISTRY, vol. 71, no. 25, page. 9470 - 9474, 2006-12-08
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