Results 11 to 20 of about 66,931 (265)

Spectral Analyses of Ecabet Sodium

open access: yesChinese Journal of Magnetic Resonance, 2018
Ultraviolet (UV) spectrum, infrared (IR) spectrum, high resolution-mass spectrum (HR-MS), nuclear magnetic resonance (NMR) spectra (i.e., 1H NMR, 13C NMR, DEPT, 1H-1H COSY, 1H-13C HSQC and 1H-13C HMBC) of ecabet sodium were collected and analyzed to ...
JI Xiao-long, YU Shui-tao, CHEN Zai-xin
doaj   +1 more source

Spectroscopic and computational investigation of the structure and pharmacological activity of 1-benzylimidazole

open access: yesJournal of Taibah University for Science, 2017
The chemical and pharmacological activity of the compound 1-benzylimidazole was analysed using vibrational, NMR and UV-Visible spectroscopic tools. The necessary data were obtained by recording FT-IR, FT-Raman, NMR and UV-Visible spectra.
A. Madanagopal   +5 more
doaj   +1 more source

Electrochemical Behavior of bis((E) 3-(2-Nitrophenyl) Allylidene)Propane-1,2-Diamine as a New Schiff Base and Some Its New XII Group Complexes

open access: yesInternational Journal of Electrochemical Science, 2012
Synthesis, spectroscopic and electrochemical properties of some complexes of a new symmetric bidentate Schiff base ligand of bis((E) 3-(2-nitrophenyl)allylidene)propane-1,2-diamine (L) with a general formula of MLX2(M= Cd(II) and Hg(II); X= Cl-, Br-, -I,
Morteza Montazerozohori   +2 more
doaj   +1 more source

Ab Inito Calculations on Adipic Acid

open access: yesSakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2013
Geometric optimization, vibrational spectra and GIAO (gauge including atomic orbital) 13C NMR, 1H NMR chemical shift calculations were carried out by using Hartree-Fock (HF) method and density functional method (B3LYP) with the 6-31G(d) basis set.
Mustafa Çetin   +2 more
doaj   +1 more source

Diethyl 2,2'-[Biphenyl-4,4'-diyldihydrazin-2-yl-1-ylidene]bis(chloroacetate)

open access: yesMolbank, 2014
Diethyl 2,2'-[biphenyl-4,4'-diyldihydrazin-2-yl-1-ylidene]bis(chloroacetate) was synthesized in high yield via Japp–Klingemann reaction. The structure of this compound was fully characterized by IR, 1H-NMR, 13C-NMR, Mass spectra and elemental analysis.
Nabila Abdelshafy Kheder   +1 more
doaj   +1 more source

Tunnel Effect in Widezone Crystals with Proton Conductivity [PDF]

open access: yesЖурнал нано- та електронної фізики, 2014
The spectrum of thermally stimulated depolarization currents, dielectric losses, thermally stimulated luminescence, IR transmission and absorption spectra and NMR-spectra of protons in widezone hydrogen-bonded crystals had been investigated.
V.M. Timokhin
doaj  

Ergosterol Peroxide and Stigmasterol from The Stembark of Aglaia simplicifolia (Meliaceae) and Their Cytotoxic against HeLa Cervical Cancer Cell Lines

open access: yesJurnal Kimia Valensi, 2021
Two steroid compounds, ergosterol peroxide (1) and stigmasterol (2) have been isolated from the stembark of Aglaia simplicifolia belong to Meliaceae family.
Nunung Kurniasih   +5 more
doaj   +1 more source

Synthesis, Characterization and Antibacterial Activity of Schiff Bases and their Metal Complexes Derived from 4-Acyl-1-phenyl-3-methyl-2-pyrazolin-5-ones and 2-Amino-4(4'-methylphenyl)-thiazole

open access: yesE-Journal of Chemistry, 2010
4-Acyl-1-phenyl-3-methyl-2-pyrazolin-5-ones condensed with 2-amino-4(4'-methylphenyl)-thiazole to form Schiff base. These Schiff bases from complexes of type ML22H2O (M=Mn, Fe, Co, Ni and Cu).
A. S. Thakar   +4 more
doaj   +1 more source

Synthesis, Characterization, and Antimicrobial Activity Studies of Ni(II) Complex with Pyridine as a Ligand

open access: yesJournal of Chemistry, 2015
We represent a metal complex which has been synthesized by the simple reaction with Ni(II) chloride and pyridine (as a lignd) affording a complex having the molecular formula [NiC5H5N2Cl2], characterized on the basis of elemental analyses, electronic ...
Faridul Islam   +6 more
doaj   +1 more source

Synthesis, IR and NMR spectral correlations in some symmetrical diimines

open access: yesBulletin of the Chemical Society of Ethiopia, 2014
A series of diimines have been synthesized by coupling of diamine with substituted benzaldehydes. The purities of these diimines were checked by their analytical and spectroscopic data. The spectral frequencies νCN (cm-1), NMR chemical shifts (δ, ppm) of
G. Thirunarayanan
doaj   +1 more source

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