Fluorescent sensing of water in DMSO by 2,4-dinitrophenyl hydrazine derived Schiff base

2021 ◽  
pp. 132086
Author(s):  
R. Behura ◽  
S. Behera ◽  
P. Mohanty ◽  
P.P. Dash ◽  
R. Panigrahi ◽  
...  
RSC Advances ◽  
2015 ◽  
Vol 5 (35) ◽  
pp. 27682-27689 ◽  
Author(s):  
Zhi-Peng Zheng ◽  
Qin Wei ◽  
Wen-Xia Yin ◽  
Lin-Tao Wan ◽  
Xia Huang ◽  
...  

Two Schiff base ligands (HL1, HL2) were synthesized as fluorescent sensors for Zn2+ or Cd2+. With an ethoxyl group, HL1 can distinguishingly sense Zn2+ and Cd2+, while HL2 exclusively responds to Zn2+.


2017 ◽  
Vol 239 ◽  
pp. 1194-1204 ◽  
Author(s):  
Barnali Naskar ◽  
Ritwik Modak ◽  
Yeasin Sikdar ◽  
Dilip K. Maiti ◽  
Antonio Bauzá ◽  
...  

2018 ◽  
Vol 42 (1) ◽  
pp. 293-300 ◽  
Author(s):  
Ambreen Abbasi ◽  
Mohammad Shakir

An effective and simple fluorescent sensing approach for recognition of Cr(vi) using a Schiff base chemosensor,N′-[(E)-(3,4-dimethoxyphenyl) methylidene] furan-2-carbohydrazide, was developed.


2014 ◽  
Vol 633-634 ◽  
pp. 310-313
Author(s):  
Jing Liu ◽  
Wei Yuan ◽  
Cheng Mi ◽  
Chen Chen Li

A novel naphthalimides schiff base fluorescent probe and polymeric fluorescent probe for Ag+ ions were synthesied by using cheap and commercially available of 1,8 naphthalene anhydride, vanillin, N,N-dimethyl-propane diamine and hydrazine hydrate as raw material. Their spectral characteristics and fluorescent sensing of metal ions in aqueous were studied. The results indicate that the fluorescent probes sythesized showed good water-soluble and stability, high detection sensitivity selectivity to Ag+, linear relationship between the fluorescent intensity and concentration of Ag+ is in the range of 9.9 × 10-6 ~ 9.9 × 10-5 mol/L.


2020 ◽  
Vol 44 (11-12) ◽  
pp. 750-755
Author(s):  
Yu Chen

A novel steroid-derived Schiff base chemosensor, N′-(2-hydroxybenzylidene)-3α-hydroxy-cholanhydrazide (LA), has been designed and prepared via microwave irradiation. The sensor LA showed highly selective fluorescent sensing for Al3+ with a low detection limit of 34 nM in the pH range from 6.05 to 9.32 in ethanol/water (1:2, v/v) solution. The binding stoichiometry between LA and Al3+ was determined as 1:1 by Job’s plot and further verified with 1H NMR studies. Under a UV lamp, the fluorescence color changes could be easily detected by the naked eye. In addition, the sensor LA has been applied in detection of Al3+ in real water samples.


RSC Advances ◽  
2015 ◽  
Vol 5 (64) ◽  
pp. 51875-51882 ◽  
Author(s):  
Yeasmin Sarkar ◽  
Sanju Das ◽  
Riddhi Datta ◽  
Sharmila Chattopadhyay ◽  
Ambarish Ray ◽  
...  

A new Schiff-base ligand owing to 1 : 1 chelation with boric acid exhibits selective boric acid fluorosensor at physiological condition along with bio-imaging facilities.


2021 ◽  
Author(s):  
Cyril Rajnák ◽  
Romana Mičová ◽  
Ján Moncoľ ◽  
Ľubor Dlháň ◽  
Christoph Krüger ◽  
...  

A pentadentate Schiff-base ligand 3,5Cl-L2− and NCSe− form a iron(iii) mononuclear complex [Fe(3,5Cl-L)(NCSe)], which shows a thermally induced spin crossover with a broad hysteresis width of 24 K between 123 K (warming) and 99 K (cooling).


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