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Thiosemicarbazone derivatives
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In this study, The QSPR models were built with knotp, SHBa, HOMO, xvpc4, N4, LUMO, ionization potential, dipole, molecular weight, Maxneg and Hf descriptors selected from the descriptor sets.
13p
viaudi
04-08-2022
4
1
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Tetra-coordinated nickel(II) complexes of two ONS (1, 2) and seven ONN (3a–3g) chelating 2-hydroxy3-methoxy-benzaldehyde thiosemicarbazones were synthesized. The dibasic ligands and complexes bearing PPh 3 as a coligand were characterized by means of analytical and spectroscopic data. Cytotoxic activities of the ligands and nickel(II) complexes were determined using the MTT assay in vitro against MDCK cells, and then all the compounds were tested on influenza virus replication by plaque assays. The compounds showed GI 50 values varying from concentrations of 15.9 up to 161.
14p
tudichquannguyet
29-11-2021
10
1
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The experimental data were compared with the theoretical results obtained by the quantum chemical calculations of the DFT/B3LYP method with LANL2DZ basis set. A detailed interpretation of the FT-IR spectra of the studied compounds was performed based on the total energy distribution. In order to investigate the electronic structures and the UV-Vis spectrum of complex 5, time-dependent density functional theory calculation was taken into account.
45p
tudichquannguyet
29-11-2021
8
1
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Schiff-base–bearing new bis(thiosemicarbazone) derivatives were prepared from terephthalaldehyde and various thiosemicarbazides. FT–IR, 1 H NMR, 13 C NMR, and UV–Vis spectroscopic methods and elemental analysis were used to elucidate the identification of the synthesized molecules. The in vitro antioxidant activity of the synthesized compounds was analysed with the 1,1-diphenyl-2-picryl hydrazyl free-radical–trapping process. The synthesized compounds exhibited lower antioxidant activity than the standard ascorbic acid. IC50 values of the synthesized molecules measured from 3.81 ± 0.
33p
tudichquannguyet
29-11-2021
5
0
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Six nickel(II) complexes of the N2 O2 chelating thiosemicarbazones were synthesized using N1-4-benzyloxysalicylidene-Smethyl/propyl thiosemicarbazone and methoxy-substitute-salicylaldehydes in the presence of Ni(II) ion by template reaction. The structures of thiosemicarbazones and nickel(II) complexes were characterized by elemental analysis, UV-Vis, IR, and 1H-NMR spectroscopies. The structure of the N1-4-benzyloxysalicylidene-S-propyl thiosemicarbazone (2) was determined by X-ray single-crystal diffraction method.
10p
tudichquannguyet
29-11-2021
48
1
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The thiosemicarbazone of N- (tetra-O-acetyl-β-D-glycopyranosyl) of some naturally derived aldehydes and ketones has been synthesized and studied in the MNMR spectrum. The 1H and 13C NMR spectra of these thiosemicarbazon were discussed. Magnetic resonance signals in their NMR spectrum indicate the relationship between the structure and the position of the resonant signal. The configuration β of these thiosemicarbazon is confirmed based on the pairing constant J = 9.5–8.5 Hz between the NH-4 proton of the thiosemicarbazon proton and the H-1 proton in the sugar component.
7p
khidoichuoi
04-03-2020
15
1
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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Antioxidant, antimicrobial, and theoretical studies of the thiosemicarbazone derivative Schiff base 2-(2-imino-1-methylimidazolidin-4-ylidene)hydrazinecarbothioamide (IMHC)
23p
sting06
16-02-2012
49
5
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Tuyển tập các báo cáo nghiên cứu khoa học ngành toán học được đăng trên tạp chí toán học quấc tế đề tài: Antioxidant, antimicrobial, and theoretical studies of the thiosemicarbazone derivative Schiff base 2-(2-imino-1-methylimidazolidin-4-ylidene)hydrazinecarbothioamide (IMHC)
23p
dauphong11
04-02-2012
51
4
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Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: N-methylisatin-beta-thiosemicarbazone derivative (SCH 16) is an inhibitor of Japanese encephalitis virus infection in vitro and in vivo
12p
dauphong7
13-01-2012
41
2
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