Synthesis, X-ray crystal structure, electrochemical and antibacterial activity of a silver(I) complex with α-bromo-cinnamaldehyde salicylhydrazone

2010 ◽  
Vol 35 (5) ◽  
pp. 507-511 ◽  
Author(s):  
Jun An Liu ◽  
Qing Li ◽  
Ming Ming Wang ◽  
Hui Wang ◽  
Guo Qing Gan ◽  
...  
2018 ◽  
Vol 42 (10) ◽  
pp. 512-514
Author(s):  
Rui-bo Xu ◽  
Xiao-tian Yang ◽  
Hai-nan Li ◽  
Peng-cheng Zhao ◽  
Jiao-jiao Li ◽  
...  

Two new bis-Schiff bases containing a piperazine ring, N,N‘-bis(4-chlorobenzylidene)- and N,N‘-bis(4-cyanobenzylidene)-1,4-bis(3-aminopropyl)piperazine, were prepared by the reaction of N,N‘-bis(3-aminopropyl)piperazine with 4-chloro- and 4-cyanobenzaldehyde, respectively. The dichloro compound was fully identified by X-ray crystallography and it exhibited good antibacterial activity against Escherichia coli, Staphylococcus aureus and Bacillus subtilis.


2011 ◽  
Vol 282-283 ◽  
pp. 96-99
Author(s):  
Xi Shi Tai

1D chain Ca(II) coordination polymer was synthesized and characterized by elemental analysis, molar conductance, IR and single-crystal X-ray diffraction, The results of crystal structure show that each Ca(II) ion forms eight-coordinated and the complex formed one dimensional chain structure by the oxygen atoms of carboxylate and water bridged. The antibacterial activity of the Ca(II) coordination polymer and the ligand were tested, the results show that the complex show considerable antibacterial activity against escherichia coli, bacillus subtilis and staphylococcus white.


ChemBioChem ◽  
2020 ◽  
Vol 21 (15) ◽  
pp. 2187-2195
Author(s):  
Eric M. Lewandowski ◽  
Łukasz Szczupak ◽  
Aleksandra Kowalczyk ◽  
Gracia Mendoza ◽  
Manuel Arruebo ◽  
...  

2022 ◽  
pp. 132424
Author(s):  
Amel Marir ◽  
Toma Nardjes Mouas ◽  
Barkahem Anak ◽  
Erwann Jeanneau ◽  
Amel Djedouani ◽  
...  

2014 ◽  
Vol 67 (2) ◽  
pp. 265-285 ◽  
Author(s):  
Ramesh Chandra Santra ◽  
Kushal Sengupta ◽  
Rajdip Dey ◽  
Tahsina Shireen ◽  
Piyal Das ◽  
...  

2020 ◽  
Vol 990 ◽  
pp. 256-261
Author(s):  
Nissapa Wattanawong ◽  
Kanchana Chatchaipaiboon ◽  
Natchanan Sreekirin ◽  
Duangdao Aht-Ong

This work was focused on the effects of filler concentration on the antibacterial activity and biodegradable behavior of poly (butylene succinate) (PBS) composite films containing silver exchanged zeolite ZSM-5 (SZSM-5). The composite films were prepared by chill roll cast film extrusion, by varying the silver zeolite content from 0.5 to 4 %wt. The silver content in zeolite was examined by energy dispersive X-ray spectroscopy (EDX). The morphology and crystal structure of silver zeolite were analyzed by scanning electron microscopy (SEM) and X-ray diffraction (XRD) technique, respectively. The incorporation of silver did not influence the zeolite morphology and its crystal structure. The antibacterial action of composite films was investigated against gram-negative Escherichia coli and gram-positive Staphylococcus aureus. The results revealed that the PBS composite films containing SZSM-5 showed 99.9% of bacterial reduction. The optimal SZSM-5 content in PBS composite films was 0.5%wt because it was the lowest concentration that showed high efficiency of antibacterial behavior. In case of biodegradable ability, PBS composite films incorporated with 0.5%wt of SZSM-5 exhibited the degradation after three-month of soil burial test, although they exhibited slower rate than neat PBS films. The SEM micrographs of the films after soil burial test displayed the cavity on film surface, indicating the biodegradable properties of the films. PBS composite films incorporated with 0.5%wt of SZSM-5 showed the potential to be used as the food packaging.


2011 ◽  
Vol 239-242 ◽  
pp. 2153-2157 ◽  
Author(s):  
Chang Zheng Zheng ◽  
Liang Wang ◽  
Juan Liu

The title complex, [(C5H5N)Ni(C15H11N2O2Br)], was synthesized by the reaction of the 5-bromo-2-hydroxyphenyl ethyl ketone benzoyl hydrazone, pyridine ligand and nickel chloride in acetone. The crystal structure was determined by single-crystal X-ray diffraction. It crystallizes in the monoclinic system, space group C2/c with a = 29.507(4) Ǻ, b = 7.7738(11) Ǻ, c = 20.205(3) Ǻ, β = 126.614(2)º, Z = 8, V = 3720.1(9) Ǻ3. Its crystal structure was determined and refined to a final R= 0.0304 for 8902 independent reflections. The center nickel atom is four-coordinated. The antibacterial activity of the ligand and its complex was also studied.The antibacterial experiments indicate that they have antibacterial activity to P.aeruginosa, S.aureus, E.coli and the complex has higher activity than the ligand.


2009 ◽  
Vol 1 (2) ◽  
pp. 306-316 ◽  
Author(s):  
M. A. Affan ◽  
B. A. Fasihuddin ◽  
Y. Z. Liew ◽  
S. W. Foo ◽  
J. Ismail

Five new organotin(IV) complexes with pyruvic acid isonicotinoyl hydrazone [H4PAI (1)] of the general formula [Me2Sn(H2PAI)] (2), [R2Sn(H2PAI).H2O] [R=n-Bu, (3) or Ph, (4)], [RSnCl(H2PAI).H2O] [R=Me (5) or Ph (6)] have been synthesized in the presence of base in absolute methanol in 1:2:1 mole ratio (metal:base:ligand). All organotin(IV) complexes are characterized by elemental analyses, molar conductance values, UV-Visible, IR and 1H NMR spectral studies. The crystal structure of organotin(IV) complex (3) has also been determined by X-ray crystallography diffraction analyses. Complex [n-Bu2Sn(H2PAI).H2O] (3) is orthorhombic with space group P2(1)/c with a=27.517(5), b=9.6574(18), c=15.742(3) Å, α=90°, β=90°, γ=90°, V=4183.4(13) Å3, Z=8 and Dcalc=1.448 mg m-3. The complex [n-Bu2Sn(H2PAI).H2O] (3) shows a distorted octahedral geometry with coordination for the central tin(IV) atom and exhibits two monomeric structures in one unit cell. In the complex (3), the pyruvic acid isonicotinoyl hydrazone ligand is coordinated to the tin(IV) as dinegative tridentate chelating agent via the carboxylic-O, enolic-O and imine-N atoms. Hydrazone ligand (1) and its organotin(IV) complexes have also been screened for their antimicrobial activities and found to be relatively active.Keywords: Organotin(IV) complexes; Hydrazone ligand; Spectral studies; Crystal structure; Antibacterial activity.© 2009 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.DOI: 10.3329/jsr.v1i2.1775


2014 ◽  
Vol 5 (12) ◽  
pp. 4621-4632 ◽  
Author(s):  
S. Hanessian ◽  
O. M. Saavedra ◽  
M. A. Vilchis-Reyes ◽  
J. P. Maianti ◽  
H. Kanazawa ◽  
...  

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