Results 31 to 40 of about 12,878 (240)

Photo- and solvatochromic properties of nitrobenzospiropyran in ionic liquids containing the [NTf2]- anion [PDF]

open access: yes, 2008
The photo-, thermo- and solvatochromic properties of 2,3-dihydro-10,30,30-trimethyl-6-nitrospiro- [1-benzopyran-2,20-1H-indole] (BSP-NO2) were studied in ILs containing the anion [NTf2]- by UV-Vis absorption spectroscopy, ab initio molecular orbital ...
Byrne, Robert   +5 more
core   +1 more source

Influence of Swelling Media on the Crystallinity and Accessibility of Lyocell Fibers: An FTIR and 13C NMR Analysis

open access: yesJournal of Natural Fibers, 2022
Cellulose swelling using different protic, aprotic and alkaline solvents, which are capable of penetrating crystalline parts of cellulose is one of the important methods to enhance the accessibility and, as a result, the reactivity of cellulose in ...
Fereshteh Fadavi   +3 more
doaj   +1 more source

Photosensitized Oxidation of Isoeugenol in Protic and Aprotic Solvents.

open access: yesChemical and Pharmaceutical Bulletin, 1991
化學系 ; 理學院 ...
Chen, Y. L.   +2 more
openaire   +2 more sources

Synthesis method of asymmetric gold particles. [PDF]

open access: yes, 2017
Asymmetric particles can exhibit unique properties. However, reported synthesis methods for asymmetric particles hinder their application because these methods have a limited scale and lack the ability to afford particles of varied shapes.
Hahm, Eunil   +3 more
core   +1 more source

Spectroscopic behavior of pyrrolanthrone and its derivative in aprotic and protic solvents [PDF]

open access: yesInternational Conference on Atomic and Molecular Pulsed Lasers XIII, 2018
Recently synthesized pyrrolanthrone, naphtho[1,2,3-cd]indole-6(2H)-one (PyAn), and its water-soluble derivative, 3(naphtho[1,2,3-cd]indole-6(2H)-one-2-yl) sodium propylsulfonate, are very promising for anticancer therapy due to both the fluorescent and cytotoxic properties.
Merezhko, A. G.   +4 more
openaire   +2 more sources

Ultrafast Excited-State Dynamics of Hydrogen-Bonded Cytosine Microsolvated Clusters with Protic and Aprotic Polar Solvents.

open access: yesJournal of Physical Chemistry A, 2018
Microsolvation effects on the ultrafast excited-state deactivation dynamics of cytosine (Cy) were studied in hydrogen-bonded Cy clusters with protic and aprotic solvents using mass-resolved femtosecond pump-probe ionization spectroscopy.
Shi Wei   +8 more
semanticscholar   +1 more source

Effect of Solvent and Catalyst Types on Stability and Properties of Zinc Phthalocyanine in the Organic–Inorganic Hybrid Materials

open access: yesCrystals, 2021
Hybrid materials, i.e., the organically modified silicates (ORMOSIL) based on zincphthalocyanine (ZnPc) and silica glass matrix were synthesized by the sol-gel method using protic solvents (methanol, ethanol, isopropanol, butanol) and aprotic solvent (N ...
Barbara Popanda   +2 more
doaj   +1 more source

Greener Method to Obtain a Key Intermediate of Vitamin E over Cu-ZSM-5 [PDF]

open access: yes, 2014
The catalytic oxidation of 2,3,5-trimethylphenol was performed over transition metals modified ZSM-5 zeolites employing hydrogen peroxide as oxidant under mild reaction conditions.
Alcón M. J.   +39 more
core   +1 more source

Red-Shifted Environmental Fluorophores and Their Use for the Detection of Gram-Negative Bacteria

open access: yesChemosensors, 2021
Two novel, water-soluble, merocyanine fluorophores were readily prepared by microwave-assisted synthesis. Full optical characterization was performed in a series of protic and aprotic solvents, and the dyes displayed fluorescence in the red region with ...
Alicia Megia-Fernandez   +7 more
doaj   +1 more source

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