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A simple BODIPY-aniline-based fluorescent chemosensor as multiple logic operations for the detection of pH and CO2 gas.
- Source :
- Dalton Transactions: An International Journal of Inorganic Chemistry; 2014, Vol. 43 Issue 22, p8499-8507, 9p
- Publication Year :
- 2014
-
Abstract
- A simple 4-aniline boron-dipyrromethene (BODIPY) dye (1) was developed as a highly sensitive acidic pH fluorescent probe excitable with visible light based on a photoinduced electron transfer (PeT) mechanism. The pH titration indicates that the fluorescence intensity increases more than 500-fold within the pH range of 4.12-1.42 with a pKa value of 3.24 in methanol-water (1 : 1, v/v) solution, which is valuable for studying strongly acidic conditions. Density functional theory (DFT) calculations reproduce the fluorescence off-on behavior. 1 has also been used as a fluorescent chemosensor for the visual detection of dissolved carbon dioxide (CO<subscript>2</subscript>) gas. The underlying mechanism of the sensing process is rationalized. This probe can be recovered by bubbling nitrogen (N<subscript>2</subscript>) gas into CO<subscript>2</subscript>-treated solutions for over 10 cycles. In addition, two logic gates (OR and INH) have been achieved at the molecular level by changing the initial states of system 1 and chemical inputs. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14779226
- Volume :
- 43
- Issue :
- 22
- Database :
- Complementary Index
- Journal :
- Dalton Transactions: An International Journal of Inorganic Chemistry
- Publication Type :
- Academic Journal
- Accession number :
- 100112482
- Full Text :
- https://doi.org/10.1039/c4dt00395k