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Issue 15, 2015
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Highly sensitive detection of carbon dioxide by a pyrimido[1,2-a]benzimidazole derivative: combining experimental and theoretical studies

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Abstract

In the present paper, a “light-up” chemsensor with a high specificity for carbon dioxide detection using a pyrimido[1,2-a]benzimidazole derivative (P1H) in liquid media has been developed. The results show that P1H reacts with carbon dioxide activated by a basic ion to form a carboxylic acid compound (P1-COOH). These results also provide a possible method for carboxylation reactions of P1H using carbon dioxide based on a vinyl carbanion. The complete reaction mechanism cycle was also described using DFT calculations.

Graphical abstract: Highly sensitive detection of carbon dioxide by a pyrimido[1,2-a]benzimidazole derivative: combining experimental and theoretical studies

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Article information


Submitted
12 May 2015
Accepted
08 Jun 2015
First published
09 Jun 2015

Analyst, 2015,140, 5099-5104
Article type
Paper
Author version available

Highly sensitive detection of carbon dioxide by a pyrimido[1,2-a]benzimidazole derivative: combining experimental and theoretical studies

G. Xia, C. Ruan and H. Wang, Analyst, 2015, 140, 5099
DOI: 10.1039/C5AN00947B

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