Novel NNO pincer type Schiff base ligand and its complexes of Fe(IIl), Co(II) and Ni(II): synthesis, spectroscopic characterization, DFT, antibacterial and anticorrosion study

2021 ◽  
pp. 130582
Author(s):  
Satyendra Nath Shukla ◽  
Pratiksha Gaur ◽  
Mohan Lal Raidas ◽  
Bhaskar Chaurasia ◽  
Sanjay Singh Bagri
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Spectroscopic Characterization

scholarly journals Zr(IV), La(III), and Ce(IV) Chelates with 2-[(4-[(Z)-1-(2-Hydroxyphenyl)ethylidene]aminobutyl)-ethanimidoyl]phenol: Synthesis, Spectroscopic Characterization, and Antimicrobial Studies

2015 ◽  
Vol 2015 ◽  
pp. 1-15 ◽  
Author(s):  
M. M. El-ajaily ◽  
H. A. Abdullah ◽  
Ahmed Al-janga ◽  
E. E. Saad ◽  
A. A. Maihub
Keyword(s):  
Schiff Base ◽  
Spectral Data ◽  
Schiff Base Ligand ◽  
Active Sites ◽  
Antimicrobial Agents ◽  
Spectroscopic Characterization ◽  
Metal Chelates ◽  
Molar Ratio ◽  
Bacterial Strains ◽  
Activity Data

La(III), Zr(IV), and Ce(IV) chelates of 2-[(4-[(Z)-1-(2-hydroxyphenyl)ethylidene]aminobutyl)-ethanimidoyl]phenol were synthesized and characterized by using several physical techniques. The Schiff base was obtained by refluxing of o-hydroxyacetophenone with 1,4-butanediamine in 2 : 1 molar ratio. The CHN elemental analysis results showed the formation of the Schiff base and the chelates has been found to be in 1 : 1 [M : L] ratio. The molar conductance measurements revealed that all the chelates are nonelectrolytes. Structural elucidations of the ligand and its chelates were based on compatible analytical and spectroscopic evidences. The infrared spectral data revealed that the Schiff base coordinates to the metal ions through active sites which are –OH and –C=N groups. According to the electronic spectral data, an octahedral geometry was proposed for the chelates. The synthesized ligand and its metal chelates were screened for their antimicrobial activity against two Gram negative (Escherichia coli, Salmonella kentucky) and two Gram positive (Lactobacillus fermentum, Streptococcus faecalis) bacterial strains, unicellular fungi (Fusarium solani), and filamentous fungi (Aspergillus niger). The activity data showed that the metal chelates have antibacterial and antifungal activity more than the parent Schiff base ligand against one or more bacterial or fungi species. The results also indicated that the metal chelates are higher sensitive antimicrobial agents as compared to the Schiff base ligand.

Optical, magnetic and spectroscopic characterization of a novel iron(II) spin-transition compound with a Schiff base ligand

2000 ◽  
Vol 3 (4) ◽  
pp. 198-201
Author(s):  
Hong-Mei Wang ◽  
Peng Cheng* ◽  
Li-Cun Li ◽  
Shi-Ping Yan ◽  
Zong-Hui Jiang ◽  
...  
Keyword(s):  
Schiff Base ◽  
Schiff Base Ligand ◽  
Spin Transition ◽  
Spectroscopic Characterization
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