Highly sensitive and selective fluorescent sensor for copper(ii) based on salicylaldehyde Schiff-base derivatives with aggregation induced emission and mechanoluminescence

2017 ◽  
Vol 41 (19) ◽  
pp. 11079-11088 ◽  
Author(s):  
Xiaoli Yang ◽  
Wenyan Zhang ◽  
Zihan Yi ◽  
Hao Xu ◽  
Jun Wei ◽  
...  

The present study provides valuable information for designing materials with AIE, Cu2+ sensor and MFC properties based on Schiff-bases.

2020 ◽  
Vol 41 (1) ◽  
pp. 26-35
Author(s):  
Kishor Devkota ◽  
Govinda Pathak ◽  
Bhushan Shakya

Triazole ring system has attracted a continuously growing interest of synthetic organic chemists and those dealing with the medicinal compounds due to its versatile potential to interact with biological systems. Schiff bases are also considered as one of the most biologically active compounds.  The aim of the present study was to synthesize new Schiff bases bearing triazole nucleus and to assess their antimicrobial activities. Four new Schiff base derivatives of 1,2,4-triazole-3-thione were synthesized by combining two different pharmacophores viz. triazole nucleus and Schiff base moiety and were characterized by spectral techniques (UV, FT-IR, and NMR). The Schiff bases were evaluated for antibacterial (Staphylococcus aureus, Escherichia coli, and Klebsiella pneumoniae) and antifungal (Candida albicans) activities. The synthesized compounds exhibited good to moderate activities against different strains of bacteria and fungi tested.


The Analyst ◽  
2018 ◽  
Vol 143 (18) ◽  
pp. 4298-4305 ◽  
Author(s):  
Jiabin Qiu ◽  
Yunxiang Chen ◽  
Shengjie Jiang ◽  
Hongyu Guo ◽  
Fafu Yang

A fluorescent sensor based on aggregation-induced emission for amines was prepared and its highly sensitive detection of hydrazine and application in living cell imaging were investigated in detail.


2014 ◽  
Vol 2 (15) ◽  
pp. 2684-2691 ◽  
Author(s):  
Gang Liu ◽  
Mingdi Yang ◽  
Lianke Wang ◽  
Jun Zheng ◽  
Hongping Zhou ◽  
...  

Three new Schiff base derivatives possessing vagarious blue aggregation-induced emission (AIE) characteristics in tetrahydrofuran (THF)–water were synthesized.


2017 ◽  
Vol 15 (1) ◽  
pp. 256-264 ◽  
Author(s):  
Xiaoping Gan ◽  
Guangjin Liu ◽  
Mingjie Chu ◽  
Wengang Xi ◽  
Zili Ren ◽  
...  

The structure–property relationship was discussed and we found that the C–H⋯π interactions and H⋯H interactions played a significant role in AIE performance.


1973 ◽  
Vol 28 (3-4) ◽  
pp. 153-157 ◽  
Author(s):  
R. N. Prasad ◽  
J. P. Tandon

Reactions of aluminium iso-propoxide with monofunctional bidentate Schiff bases having the general formula 2-HOC10H6CH:NR (where R = C2H5, n C3H7, iso-C3H7, n-C4H9, iso-C4H9, sec-C4H9, tert-C4H9 and C6H5) in different stoichiometric ratios have yielded Al(OPri)2(SB), Al(OPri)(SB)2 and Al(SB)3 type of products (where SB is the anion of the corresponding Schiff base, SBH). The ebullioscopic determination of molecular weights shows that the di-iso-propoxy mono- Schiff base derivatives are dimeric; the tris- Schiff base derivatives are monomeric and for the mono-iso-propoxy bis- Schiff base derivatives, molecular association is ~1.4. The IR spectra of a few representative derivatives have been recorded and possible structures indicated.


1970 ◽  
Vol 25 (1) ◽  
pp. 32-36 ◽  
Author(s):  
P. Prashar ◽  
J. P. Tandon

Schiff base derivatives of niobium and tantalum of the types, M(OPri)3SB, M(OPri)(SB)2 and M(SB)2(SBH) have been synthesized by the reactions of the metal isopropoxides with the Schiff bases in 1:1, 1:2 and 1:3 molar ratios (where M=Nb or Ta, SBH⊖ and SB2⊖ represent the corresponding anions of the Schiff bases). Except the triisopropoxy acetylacetone-2-hydroxy-alkylimine derivatives of these metals which are distillable, all the remaining complexes decompose when an attempt is made to distil them. The triisopropoxy mono - Schiff base and the tris - Schiff base derivatives of these metals are essentially monomeric in boiling benzene and probably possess hexa- and octa-coordinated metal atoms, while the monoisopropoxy bis-Schiff base complexes show slight tendency of polymerization.


RSC Advances ◽  
2020 ◽  
Vol 10 (16) ◽  
pp. 9258-9273 ◽  
Author(s):  
Sanjoy Satpati ◽  
Sourav Kr. Saha ◽  
Aditya Suhasaria ◽  
Priyabrata Banerjee ◽  
Dipankar Sukul

Two Schiff base derivatives of vanillin and divanillin with 2-picolylamine are synthesized and their anti-corrosive propensity for mild steel in aqueous HCl are compared.


2015 ◽  
Vol 44 (48) ◽  
pp. 20830-20833 ◽  
Author(s):  
Si-Quan Jiang ◽  
Zi-Yan Zhou ◽  
Shu-Ping Zhuo ◽  
Guo-Gang Shan ◽  
Ling-Bao Xing ◽  
...  

An in situ-generated iron(iii) complex with a 1,8-naphthalene-based Schiff base unit has been rationally designed, which exhibits a highly selective response and excellent sensitivity for the turn-on detection of PO43− anions.


2009 ◽  
Vol 2009 (5) ◽  
pp. 317-318
Author(s):  
Chao Shen ◽  
Qing Zhao ◽  
Hui Zheng ◽  
Pengfei Zhang

The synthesis of novel sugar derived Schiff base derivatives from reaction of 3-O-methyl-4, 6-O-benzylidene-β-D-glucopyranosylamine with several substituted aldehydes is described.


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