title: A highly selective fluorescent probe based on Michael addition for fast detection of hydrogen sulfide.
abstract: A new 4-hydroxy-1,8-naphthalimide-based compound (probe 1) has been designed and synthesized. The colorimetric and fluorescent properties of probe 1 towards hydrogen sulfide (H2S) were investigated in detail. The results show that the probe 1 could selectively and sensitively recognize H2S rather than other reactive sulfur species. The reaction mechanism of this probe is an intramolecular cyclization caused by the Michael addition of H2S to give 4-hydroxy-1,8-naphthalimide. The intramolecular charge transfer of 4-hydroxy-1,8-naphthalimide is significant. Probe 1 quickly responded to H2S and showed a 75-fold fluorescence enhancement in 5min. Moreover, probe 1 could detect H2S quantitatively with a detection limit as low as 0.23μM.
authors.affiliation: School of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan 030006,China.
authors.forename: Baozhen
authors.initials: B
authors.lastname: Gao
authors.affiliation: School of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan 030006,China.
authors.forename: Lixia
authors.initials: L
authors.lastname: Cui
authors.affiliation: State Key Laboratory of NBC Protection for Civilian, Research Institute of Chemical Defense, Yangfang, Changping District, Beijing 102205, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Pan
authors.affiliation: School of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan 030006,China.
authors.forename: Minjie
authors.initials: M
authors.lastname: Xue
authors.affiliation: School of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan 030006,China.
authors.forename: Boyu
authors.initials: B
authors.lastname: Zhu
authors.affiliation: School of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan 030006,China.
authors.forename: Guomei
authors.initials: G
authors.lastname: Zhang
authors.affiliation: School of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan 030006,China. Electronic address: chzhang@sxu.edu.cn.
authors.forename: Caihong
authors.initials: C
authors.lastname: Zhang
authors.affiliation: School of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan 030006,China.
authors.forename: Shaomin
authors.initials: S
authors.lastname: Shuang
authors.affiliation: School of Chemistry and Chemical Engineering, Center of Environmental Science and Engineering Research, Shanxi University, Taiyuan 030006,China. Electronic address: dc@sxu.edu.cn.
authors.forename: Chuan
authors.initials: C
authors.lastname: Dong
keywords: 1,8-Naphthalimide; Fluorescent probe; Hydrogen sulfide; Michael addition