Journal
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
Volume 397, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jphotochem.2020.112569
Keywords
Naked eye recognition; Minimum detection limit; DFT theoretical calculation; RGB analysis
Categories
Funding
- National Natural Science Foundation of China [21761018]
- Program for Excellent Team of Scientific Research in Lanzhou Jiaotong University [201706]
- Overseas Visiting and Research Project for Outstanding Young Talents of Colleges and Universities [gxgwfx2019043]
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A novel unsymmetrical bis(salamo)-based sensor H5L has been firstly synthesized, and characterized by means of elemental analyses, fourier transform infrared spectroscopy and ESI-mass spectrometry, (HNMR)-H-1 and Gaussian-09 software program. The RGB analysis is made by Color Assist software. The sensor has good selectivity and sensitivity for Cu2+ ions, which is due to the paramagnetism of Cu2+ ions. When Cu2+ ions were added to the sensor H5L solution, the color was changed from light yellow to dark brown. The experimental results of solvent effect, pH range and aqueous system show that the sensor has high efficiency in different organic solvents and wide pH ranges. In addition, L-Cu2+ complex can be used as a new sensor to test Cys and GSH.
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