科研之友
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摘要
A novel quinoline-based colorimetric chemosensor (HL) and its Cu(II) complex (CuL2) were synthesized. HL exhibits an obvious color change from colorless to yellow upon addition of Cu2+ in aqueous medium. This response was investigated by UV-vis absorption and ESI-MS spectra, and all the results indicated the species formed in detection system is CuL2. The color change can be attributed to ligand-metal charge transfer (LMCT) in CuL2. The association constant for CuL2 in THF/(HO)-O-2 was calculated to be 4.43 x 10(9) M-2.
- 出版日期2017-10
- 单位北京师范大学
