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A Highly Selective Turn‐On Fluorescent Probe for B 4 O 7 2− Based On Naphthalaldehyde Derivative
Author(s) -
Chen Yanli,
Jin Lei,
Wang Wenling,
Dai Lihui,
Tan Xiaoxue,
Wang Qingming
Publication year - 2019
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201803717
Subject(s) - fluorescence , detection limit , turn (biochemistry) , chemistry , methylene , analytical chemistry (journal) , derivative (finance) , selectivity , ion , metal ions in aqueous solution , fluorescence spectroscopy , proton nmr , spectroscopy , stereochemistry , chromatography , medicinal chemistry , organic chemistry , catalysis , optics , biochemistry , physics , financial economics , economics , quantum mechanics
A novel B 4 O 7 2− fluorescent probe, (E)‐1‐[(2‐hydroxynaphthalen‐1‐yl)methylene]phenylthiourea ( NPC ) was designed, synthesized and characterized by 1H‐NMR, 13C‐NMR, IR, ESI‐MS, EAs. The probe exhibited excellent selectivity and sensitivity for detecting B 4 O 7 2− over other anions and metal ions with a lower detection limit of 0.21 μ M in DMF / H 2 O ( v:v =1:1). The fluorescence sensing properties of the probe were established by UV‐Vis and fluorescence spectroscopy. What's more, the mechanism between NPC and B 4 O 7 2− was also confirmed by ESI‐MS. The turn‐on fluorescence behaviour of B 4 O 7 2− and NPC was found within 10 s which could be used as an effective probe for the detection of B 4 O 7 2− .