1313865-94-9Relevant academic research and scientific papers
A ratiometric and exclusively selective CuII fluorescent probe based on internal charge transfer (ICT)
Chen, Xiufu,Wang, Jingyun,Cui, Jingnan,Xu, Zhaochao,Peng, Xiaojun
, p. 4869 - 4873 (2011)
A new ratiometric and exclusively selective fluorescent probe N-butyl-4,5-di[N-(phenyl)-2-(amino)-acetamino]-1,8-naphthalimide (1) was designed and synthesized on the basis of the mechanism of internal charge transfer (ICT). The probe 1 showed exclusively selectivity for CuII in the presence of a variety of other metal ions in aqueous ethanol solutions and the binding mode of probe 1 with CuII was 1:1 metal-ligand complex. Fluorescent emission spectra of probe 1 in the presence of Cu II showed a 50 nm blue shift, which is from 521 nm to 471 nm. Furthermore, probe 1 shows the same fluorescent change with the CuII in living cells.
