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Schiff base
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The wave function regards like localized orbital locator, electron localized function, average localized ionization energy and non-covalent interaction are also examined as a means of theoretical evidence of the titled compound. The NBO calculations probe the intermolecular and intramolecular movement of charges, and additionally the molecule's stability. The ADMET properties are also considered for the compound with the assistance of Swiss ADMET online tool.
17p
dianmotminh02
03-05-2024
1
1
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In this research paper we report the detailed synthesis, spectral (1H-NMR, FT-IR, and UV-Vis), crystal structure determination, DFT studies, and molecular modeling of 4-amino-3-mercapto-5-methyl-1,2,4-triazole (L2) Schiff base ligand and its complexes of cadmium as suitable bioactive agents for the treatment of malaria. From the spectroscopic results, the synthesized Schiff base has potentialtridentate coordination with themetal ion via hydroxy naphthalinic-O, azomethine-N and sulphur atom of the thione group.
17p
dianmotminh02
03-05-2024
2
1
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In this study, a facile synthesis and grafting method is reported for tetradentate Cu(II) Schiff base complex onto the surface of graphene oxide (GO). The Schiff base Cu-complex was synthesized through the condensation reaction between 2,3-diamino pyridine and 2-hydroxy-1-naphthaldehyde, followed by the addition of Cu(II) ion to afford N2O2-Cu(II) complex.
17p
dianmotminh02
03-05-2024
3
1
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Detection of nitroaromatic explosives (NAEs) is very important in terms of national security as well as the damage they cause to living things and the environment. The precision detection of these is a very important issue to reduce their harmful effects and take the necessary precautions. Electron-rich polyaromatic fluorescent materials are highly sensitive and selective in the detection of NAEs in terms of their fluorometric quenching abilities.
11p
dianmotminh02
03-05-2024
2
1
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In recent times many research activities have been carried out to prove the metal ion detection ability of Schiff bases. [13,14] In the present study, a new Schiff base has been synthesized from 5-bromo-2- hydroxybenzaldehyde and naphthalene-1,8-diamine and it is complexated with Co(II), Ni(II), Cu(II) and Zn(II) ions. The biological application of all the compounds has been analyzed and metal ions recognition property of the Schiff base has also been studied.
16p
dianmotminh02
03-05-2024
5
1
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The geometries and relative stabilities of 15 tautomeric forms and the corresponding isomers of the studied molecules have been identified and their relative stabilities are investigated. The potential energy profiles and intrinsic reaction coordinates (IRC) calculations along the proton transfer coordinates both in the ground and in the excited state are monitored as well. The impact of the donating (OMe) and withdrawing (NO2) groups on the single and double proton transfers are investigated both in the gas phase and solution.
9p
dianmotminh02
03-05-2024
4
1
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Ebook "Functional materials in amperometric sensing polymeric, inorganic, and nanocomposite materials for modified electrodes" critically discuss preparation methods, in addition to chemical and physical characteristics of these new materials. They present various examples of emerging applications in electroanalysis. Due to its comprehensive coverage, the book will become an indispensable source for researchers working on the development and even proper use of new amperometric sensor systems.
228p
tudohanhtau1006
29-03-2024
2
1
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Bài viết trình bày tổng hợp và thử hoạt tính kháng khuẩn của các dẫn chất 1,3-benzodioxole. Kết quả nghiên cứu gợi ý về sự phối hợp giữa nhóm base Schiff và khung 1,3-benzodioxole trong phát triển các chất kháng khuẩn mới.
6p
vipierre
30-09-2023
4
2
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Copper (II) and Cobalt (II) metal complexes (4a- and 4b-complexes) using Schiff base ligand 1-[(4- butylphenyl)imino]methyl naphthalen-2-ol (3) have been synthesized. The single crystals of Copper (II) and Cobalt (II) complex phosphors were grown and characterized by Fourier-Transform Infrared (FTIR), single crystal X-ray diffraction (XRD), SEM (Scanning Electron Microscope) and EDS (Energy Dispersive X-ray spectroscopy).
8p
viberbers
09-08-2023
5
3
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Synthetically feasible and cost effective Ni(II) complex phosphor (4) as green organic light emitting diode (OLED) was prepared by using Schiff base 1-[(4-butylphenyl)imino]methyl naphthalen-2-ol (3). The single crystals of Ni(II) complex were grown from chloroform and hexane (1:1 v/v) solution.
6p
viberbers
09-08-2023
5
3
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Microwave irradiation has become a routine technique in homogeneous and effective heating in organic synthesis. However, its application in enzyme-containing reactions is limited since it can cause denaturation of the enzyme. In this study, we have briefly investigated the effect of microwave heating on the conjugation reaction of horseradish peroxidase (HRP) with aldehyde derivative of dextran (D-CHO). The reaction was irradiated by microwave at 50 °C for 5 min. The conjugate was confirmed via GPC, in which the conjugates of HRP and D-CHO coexist with free unbound HRP molecules.
7p
lyhuyenthu
31-01-2023
6
3
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In the present paper, the fluorescence sensor based on Schiff base and boric acid was developed for easy and rapid detection of L-tryptophan in different samples such as milk and bovine serum albumin. The photoluminescence intensity was measured by using fluorescent measurements and the results indicated that the developed fluorescent sensor was exhibited selective, sensitive, reliable determination against L-tryptophan, and a series of various analytes such as cations, amino acids, and organic compounds were used to investigate the selectivity of the fluorescent chemosensor.
13p
lyhuyenthu
31-01-2023
2
2
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Polydentate, unsymmetrical, and multi metal ion sensing Schiff bases comprised of ferrocenecarboxaldehyde attached azomethine group at one side and aromatic aldehyde linked imine on the other side have been synthesized. Cumulative addition of different metal salts solution to receptors solution, changes the electronic spectra contrarily and for the addition of Cu2+ ions, generation of MLCT charge transfer band responsible for the coordination of metal ion with a receptor is observed.
21p
lyhuyenthu
31-01-2023
3
2
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In this study, the synthesis of dimeric disulfide-Schiff bases was carried out using two methods. The structures of the obtained Schiff bases were elucidated by various spectroscopic methods as well as elemental analysis. The Schiff base derivative compounds (3a-6) were screened for in vitro antibacterial activity against multidrug-resistant microorganisms using microdilution method. All the tested compounds showed varying inhibition zones against the pathogens.
22p
lyhuyenthu
31-01-2023
9
2
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The photo-physicochemical properties of these phthalocyanines were investigated in both DMSO and DMF for 10 and in both DMSO and aqueous solution for 11. The addition of pyridine bearing Schiff base groups as peripheral ligands showed an improvement in the photophysical and photochemical properties. In addition, a spectroscopic investigation of the binding behavior of the water-soluble zinc (II) phthalocyanine complex to bovine serum albumin (BSA) was also studied in this work.
21p
lyhuyenthu
31-01-2023
4
2
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In this study, Schiff bases of chitosan (CS) were synthesized using citronellal, citral, and their derivatives containing selenium and sulfur. Organoselenium and organosulfur compounds show attractive biological and pharmaceutical activities, which can be beneficial to CS-based materials.
11p
vihermione
06-01-2023
4
2
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A series of binucleating Cu(II), Ni(II), and Zn(II) complexes of bicompartmental ligands with ONO donors were prepared. The ligands were synthesized by the condensation of 5-substituted-3-phenyl-1H -indole-2-carboxyhydrazides and 4,6-diacetylresorcinol. The newly synthesized ligands and their complexes were characterized by elemental analysis and various spectral studies like IR, 1H NMR, ESI-mass, UV-Vis, ESR, thermal studies, magnetic susceptibility, molar conductance, and powder-XRD data.
21p
langthannam
29-12-2021
8
0
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The newly synthesized compounds were screened for their antimicrobial activities; some of them were found to be active towards the test microorganisms as the results demonstrated that the synthesized compounds exhibited a broad spectrum of activity with minimum inhibitory concentration (MIC) values of 31.3–500 µg/mL against gram-positive and gram-negative bacteria, Candia albicans and Saccharomyces cerevisiae.
12p
langthannam
29-12-2021
8
0
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A new anthracene derivative of calix[4]arene was synthesized as a highly fluorescent compound. This compound was examined for its fluorescent properties towards different metal ions (Li+, Na+, Mg2+, Ca2+, Ba2+, Ni2+, Cu2+, Zn2+, Pb2+) by UV and fluorescence spectroscopy. On complexation by alkaline earth metal cations and transition metal cations, the fluorescence spectrum was quenched. In particular, Ca2+ caused greater than 98% quenching of the anthracene derivative of calix[4]arene.
8p
langthannam
29-12-2021
11
0
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Comparison between the calculated and experimental results covering molecular structures, assignment of fundamental vibrational modes, and thermodynamic properties were investigated. The optimized molecular geometries were compared with the experimental data obtained from X-ray data of a similar complex, which indicated that the theoretical results agree with the corresponding experimental values. The UV-Vis spectrum of the compound was also recorded and some properties, such as HOMO and LUMO energies and λmax , were determined using DFT (PW91) method.
12p
langthannam
29-12-2021
18
0
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