Highly sensitive and selective fluorescent sensor for Zn2+/Cu2+ and new approach for sensing Cu2+ by central metal displacement
writer：Li, Z. X.; Zhang, L. F.; Wang, L. N.; Guo, Y. K; Cai, L. H.; Yu, M. M.*; Wei, L. H.*
keywords：fluorescent sensor
source：期刊
specific source：Chem. Comm. 2011, 47, 5798–5800
Issue time：2011年
An ‘‘off-on’’ Zn2+ and ‘‘on-off’’ Cu2+ fluorescent chemosensor
C was designed and synthesized. The binding of C and Zn2+/Cu2+
is chemically reversible by the addition of EDTA disodium
solution; moreover, the fluorescence emission signal of ZnC
decreased with the addition of Cu2+, demonstrating that ZnC
could detect Cu2+ via metal displacement.