Synthesis and characterization of a highly selective turn-on fluorescent chemosensor for Sn2+ derived from diimine Schiff base

2021 ◽  
Vol 272 ◽  
pp. 116668
Author(s):  
Feyza Kolcu ◽  
Diğdem Erdener ◽  
İsmet Kaya
RSC Advances ◽  
2015 ◽  
Vol 5 (78) ◽  
pp. 63338-63344 ◽  
Author(s):  
Sayed Muktar Hossain ◽  
Avinash Lakma ◽  
Rabindra Nath Pradhan ◽  
Ayon Chakraborty ◽  
Ashis Biswas ◽  
...  

A ditopic Schiff base fluorescent chemosensor, L (OFF state), selectively senses Al3+ by inhibition of ESIPT/GSIPT, CN isomerization and CHEF (ON state).


2019 ◽  
Vol 9 (02) ◽  
Author(s):  
Zena G. Alrecabi ◽  
Zainab Amer ◽  
Naeemah Al-Lami

This study including prepared new colored esters containing heterocyclic with high molecular weights. In the first part of work we synthesized azo dyes [1,2] from the reaction p-toluidine with β-naphthol and o-nitro phenol, thin we synthesized Schiff bases [3,4] by the reaction anthranilic acid with benzaldehyde and dimethyl benzaldehyde. The reaction azo dyes (contain OH group) with Schiff base (contain COOH group) these led to produce the new colored esters [A1-A4]. The second part of work was modification the (C=N-) group in esters to heterocyclic compounds by reacting with phenyl iso cyanide to produce new β-lactam [B1-B4] and with anthranilic acid to get new hydroquinazoline [C1-C4]. All these compounds were characterized by physical properties and spectral methods FTIR, 1H-NMR and 13C-NMR.


1988 ◽  
Vol 145 (1) ◽  
pp. 21-28 ◽  
Author(s):  
Mark S. Mashuta ◽  
Thompson N. Doman ◽  
William Pierce ◽  
Robert M. Buchanan

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