Results 141 to 150 of about 29,362 (316)

Characterization of new 5-aminoimidazole derivatives [PDF]

open access: yes, 2014
Comunicação apresentada no "III Encontro de Técnicas de Caracterização e Análises Químicas", Braga, Portugal (Junho 2014).Fundação para a Ciência e Tecnologia [PEst-C/QUI/UI0686/2013 (FCOMP-01-0124-FEDER-037302)], PTNMR and a PhD grant awarded to Nádia ...
Dias, Alice   +3 more
core  

Dual‐State Photophysical Modulation via Bifurcated Hydrogen Bonding in a U‐Shaped Dipyridophenazine‐Cored Donor‐π‐Acceptor‐π‐Donor Fluorophore

open access: yesChemistry – A European Journal, EarlyView.
A donor–π–acceptor–π–donor (D–π–A–π–D) fluorophore bearing a U‐shaped dipyridophenazine core forms bifurcated hydrogen bonds with neutral donors such as sulfonamides or water. This interaction modulates both ground and excited states, enabling red‐shifted emission and enhanced photoluminescence in solution and solid state.
Kimiya Takei   +7 more
wiley   +1 more source

Handbook on Hypergolic Propellant Discharges and Disposal [PDF]

open access: yes
The efficiency of all treatment methods formerly or currently used in treating chemical wastes is assessed with emphasis on the disposal of hypergolic propellants. Maximum focus is on the space shuttle propellants MMH and N2O4.
Bowman, T. E.   +2 more
core   +1 more source

Synthesis and characterization of amphiphilic nitroxide 1,1,3,3–tetraethylisoindoline–2–oxyl–5–sodium sulfonate (TEIOSNa)

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal   +3 more
wiley   +1 more source

Investigating the Ligand‐Binding Properties of N‐arylbenzimidazoles as Novel Elastase Inhibitors

open access: yesChemMedChem, EarlyView.
A series of novel N‐[(3,5‐dimethylphenyl)methyl]‐1H‐benzimidazole derivatives is designed, synthesized, and evaluated for inhibitory activity against elastase. Several compounds demonstrate an antielastase activity, including the N‐(2‐bromophenyl)‐2‐(6‐chloro‐1‐(3,5‐dimethylbenzyl)‐1H‐benzo[d]imidazol‐2‐ylthio)acetamide, showing the greatest potency ...
Giovanna Pitasi   +6 more
wiley   +1 more source

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