| 초록 |
A new colorimetric chemosensor for Al3+ based on Rhodamine 6G was simply synthesized and investigated for photophysical properties. Rhodamine 6G derivated colorimetric chemosensor(P4) was designed and synthersized by imine synthesis of rhodamine6G ethylenediamine and 8-chloroquinoline-2-carboaldehyde. Chemosensor(P4) displayed obvious color change from colorless to pink (under normal light) and non-fluorescent to yellowish-green fluorescent in the Al3+ direction in the acetonitrile and methylene chloride (v/v = 9:1) solution. And various metal ions including Ag+, K+, Li+, Na+, Ca2+, Cd2+, Co2+, Ni2+, Zn2+, Ba2+, Mg2+, Fe2+, Cs+, Fe3+, Hg2+, Cu2+, Tb3+, Eu3+, Gd3+ caused less or smaller UV-spectral changes. The 2:3 stoichiometry of sensor complex P4+ Al3+ was confirmed by Job’s plot(UV-vis) and UV absorbance titration. |
