title: A fluorescent sensor for Zn(2+) and NO2(-) based on the rational control of C[double bond, length as m-dash]N isomerization.
abstract: A new strategy for the ultrasensitive sensing of cations and anions based on the control of C[double bond, length as m-dash]N isomerization has been developed. Imine-derived ligand is non-fluorescent due to the C[double bond, length as m-dash]N isomerization process, whereas its ternary complex with ZnCl2 is moderately fluorescent because of the partial inhibition of C[double bond, length as m-dash]N isomerization. Such a ternary complex can give a remarkable fluorescence increase when it interacts with nitrite because of the much more efficient suppression of C[double bond, length as m-dash]N isomerization. This modulation process of C[double bond, length as m-dash]N isomerization can thus be used for the highly selective detection of Zn(2+) and NO2(-) in an aqueous solution.
authors.affiliation: School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China. chem_zhanggy@hotmail.com.
authors.forename: Zheng
authors.initials: Z
authors.lastname: Liu
authors.affiliation: School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China. chem_zhanggy@hotmail.com.
authors.forename: Cuina
authors.initials: C
authors.lastname: Peng
authors.affiliation: School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China. chem_zhanggy@hotmail.com.
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.affiliation: School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China. chem_zhanggy@hotmail.com.
authors.forename: Meishan
authors.initials: M
authors.lastname: Pei
authors.affiliation: School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China. chem_zhanggy@hotmail.com.
authors.forename: Guangyou
authors.initials: G
authors.lastname: Zhang