Results 31 to 40 of about 82,211 (300)

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

Journal 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, Md. Amran Hossain, Nur Mostaq Shah, Hridika Talukder Barua, Md. Alamgir Kabir, Mohammad Jamshed Khan, Romel Mullick   +6 more
doaj   +1 more source

Synthesis, IR and NMR spectral correlations in some symmetrical diimines

Bulletin 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

Spectroscopy Database Spectra by Compound 2023_01_16.zip

, 2023
Dataset of NMR, IR, and MS spectra in mestreC format for teaching spectroscopy.  Includes H-1, C-13, DEPT, COSY, HMQC, HMBC NMR.  
Scott Van Bramer (16631745)
core   +1 more source

Design, Synthesis and Anti-HIV Integrase Evaluation of 4-Oxo-4H-quinolizine-3-carboxylic Acid Derivatives

Molecules, 2009
4-Oxo-4H-quinolizine-3-carboxylic acid derivatives bearing sulfamido, carboxylamido, benzimidazole and benzothiazole substituents have been designed and synthesized. The structures of these new compounds were confirmed by 1H-NMR, 13C- NMR, IR and ESI (or
Li-Ming Hu, Ru-gang Zhong, Zi-Guo Jiao, Cheng-Chu Zeng, Yi-Sheng Xu   +4 more
doaj   +1 more source

Synthesis and Biological Activity of Some New Pyrazoline and Pyrrolo[3,4-c]pyrazole-4,6-dione Derivatives: Reaction of Nitrilimines with Some Dipolarophiles

Molecules, 2008
Several 1,3-diaryl-5-(cyano-, aminocarbonyl- and ethoxycarbonyl-)-2-pyrazoline, pyrrolo[3,4-c]pyrazole-4,6-dione and 1,3,4,5-tetraaryl-2-pyrazoline derivativeswere prepared by the reaction of nitrilimine with different dipolarophilic reagents.
Omar A. Miqdad, Nadia G. Kandile, Hamdi M. Hassaneen, Nada M. Abunada   +3 more
doaj   +1 more source

Shedding light on reaction mechanisms : structure determination of reactive intermediates and investigation of protein structural dynamics using 2D-IR spectroscopy [PDF]

, 2013
Detailed knowledge of reaction mechanisms is key to understanding chemical, biological, and biophysical processes. For many reasons, it is desirable to comprehend how a reaction proceeds and what influences the reaction rate and its products.
Meßmer, Andreas T.
core  

Identifying the meta, para and ortho isomers in octa(aminophenyl)silsesquioxane (OAPS) from joint experimental characterizations and theoretical predictions of the IR and NMR spectra [PDF]

, 2022
International audiencePolyhedral oligomeric silsesquioxane (POSS) compounds are defined by the chemical formula (RSiO3/2)8 with R being an organic fragment.
Salimi, Saman, Neyertz, Sylvie, Benes, Nieck E., Benes, Nieck, Pilz, Monika, Brown, David, Radmanesh, Farzaneh, Nieck Benes, Farzaneh Radmanesh, Sylvie Neyertz, David Brown, Saman Salimi, Monika Pilz   +12 more
core   +1 more source

Self‐Assembled Crystalline Peptoid Nanomaterials as Metal‐Free Enzyme Mimics for Enhanced Carbon Dioxide Hydration and Precipitation

Advanced Functional Materials, EarlyView.
Inspired by metal‐free carbonic anhydrases (CAs) that achieve efficient catalysis without metal cofactors, we herein report a sequence‐defined supramolecular peptoid platform that mimics metal‐free CAs and exhibits hydrolytic activity via a supramolecular assembly‐mediated proton‐transfer mechanism.
Progyateg Chakma, Ying Chen, Thi Kim Hoang Trinh, Anthony R. Perez, Jonathan Gil, Maria Casco Hidalgo, Botao Hao, Kyle Whitaker, Chun‐Long Chen   +8 more
wiley   +1 more source

Ab initio studies on complexes formed by melamine and cyclotrione [PDF]

Journal of the Serbian Chemical Society, 2007
Ab initio methods were used to study the binding energies of non-bonded complexes formed by melamine and cyclotrione, with the STO-3G, 3-21G and 6-31G (d) basis sets.
LIANGIANG ZHU, QIWEN TENG, SHI WU
doaj   +3 more sources

A New Derivatives of Benzodiazepine, Imidazole, Isatin, Maleimide, Pyrimidine and 1,2,4-Triazole: Synthesis and Characterization

مجلة بغداد للعلوم, 2008
The synthesis of new benzodiazepine, imidazole, isatin, maleimide, pyrimidine and 1,2,4-triazole derived from 2-amino-4-hydroxy-1,3,5-triazine, via its cyclocondensation reaction with different organic reagents, is described. FT-IR, 1H-NMR and as well as
Baghdad Science Journal
doaj   +1 more source