A multifunctional Schiff-base as chromogenic chemosensor for Mn2+ and fluorescent chemosensor for Zn2+ in semi-aqueous environment

2019 ◽  
Vol 493 ◽  
pp. 49-56 ◽  
Author(s):  
V. Raju ◽  
R. Selva Kumar ◽  
Y. Tharakeswar ◽  
S.K. Ashok Kumar
Keyword(s):  
Schiff Base ◽  
Fluorescent Chemosensor ◽  
Aqueous Environment

“Novel Dextrin‐Cysteine Schiff Base: A Highly Efficient Sensor for Mercury Ions in Aqueous Environment”

2020 ◽  
Vol 5 (6) ◽  
pp. 2082-2093 ◽  
Author(s):  
Barun Mondal ◽  
Shankha Banerjee ◽  
Jagabandhu Ray ◽  
Subinoy Jana ◽  
Sanjib Senapati ◽  
...  
Keyword(s):  
Schiff Base ◽  
Aqueous Environment ◽  
Mercury Ions ◽  
Highly Efficient

A new Schiff-base type selective fluorescent chemosensor for Cu2+

2009 ◽  
Vol 12 (6) ◽  
pp. 494-497 ◽  
Author(s):  
Hong-Ge Li ◽  
Zheng-Yin Yang ◽  
Dong-Dong Qin
Keyword(s):  
Schiff Base ◽  
Fluorescent Chemosensor

A highly selective fluorescent chemosensor for Al(III) ions based on 2-hydroxy-1-naphthaldehyde derivative

2019 ◽  
Vol 97 (5) ◽  
pp. 387-391 ◽  
Author(s):  
Jiayi Sun ◽  
Min Zhang ◽  
Changyan Sun
Keyword(s):  
Mass Spectrometry ◽  
Schiff Base ◽  
Excited State ◽  
Intramolecular Proton Transfer ◽  
Fluorescent Chemosensor ◽  
Hydroxyl Groups ◽  
Ionization Mass ◽  
Nmr Titration ◽  
H Nmr ◽  
Base Derivative

This manuscript reports the synthesis and fluorescent chemosensor property of a Schiff base derivative, 4-[(2-hydroxy-1-naphthyl) methylideneamino]benzoic acid (H2L). The fluorescence spectrum shows that H2L exhibits a highly selective and sensitive recognition for Al3+ ions in N,N′-dimethylformamide/water (DMF/H2O, 1/1, v/v). The fluorescence titration experiments and electrospray ionization mass spectrometry (ESI–MS) show that H2L and Al3+ ions form a 1:1 complex. 1H NMR titration results show that H2L coordinates to Al3+ ions with carboxylate, hydroxyl groups, and imine groups and the probable sensing mechanism may be the excited-state intramolecular proton transfer (ESIPT) process.

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