676243-31-5Relevant academic research and scientific papers
Quinoline-based colorimetric chemosensor for Cu2+: Cu 2+-induced deprotonation leading to color change
Li, Xiao-Bo,Niu, Zhi-Gang,Chang, Ling-Ling,Chen, Men-Xia,Wang, En-Ju
, p. 80 - 82 (2014)
A quinoline-based colorimetric chemosensor (QDB) for Cu2+ was synthesized by coupling quinoline-2-carbaldehyde with 4-(dimethylamino) benzohydrazide. Although most transition metal cations can cause redshifts in the UV-vis spectrum of QDB, the response of the chemosensor for Cu2+ can be easily distinguished because it exhibits the largest redshift together with a color change from colorless to red in response to Cu2+. Other metal ions have no effect on the specific response of QDB to Cu2+. The significant redshift and color change were attributed to Cu 2+-induced deprotonation of NH in the sensor.
