Results 31 to 40 of about 60,540 (292)
Solvatochromism of 5-(4-substituted arylazo)-4-phenyl-6-methyl-3-cyano-2-pyridones
Zaštita Materijala, 2018 Eight 5-(4-substituted arylazo)-4-phenyl-6-methyl-3-cyano-2-pyridones were synthesized by reaction of benzoylacetone and arendiazonium salt, followed by condensation with cyanoacetamide. Absorption spectra of all azo pyridone dyes were recorded in twelve
Gordana S. Ušćumlić +1 more
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, 2023 Photochemical ring-opening reactions are among the most extensively employed chemical reactions in the field of chemistry. Owing to their significance, molecular-level studies of these reactions have been widely conducted. One of the major considerations
Seongmin Im (17309357) +1 more
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Substituent effects in triarylphosphines
, 2012 M.Sc. The main objective of the work presented in this dissertation was to investigate the application of the phosphorus atom as a probe to evaluate stereo-electronic effects in arylphosphines. Traditionally, electronic effects are described as having inductive or resonance origins.
Renison, Carina Alicia
openaire +3 more sources
, 2020 The photochemical dynamics of double-bond-containing hydrocarbons is exemplified by the smallest alkenes, ethylene and butadiene. Chemical substituents can alter both decay timescales and photoproducts through a combination of inertial effects due to ...
Andrey E. Boguslavskiy +11 more
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Computational analysis of substituent effect on emission wavelengths and chemical reaction rates [PDF]
, 2021 Substituent groups are widely used to take advantage of their electronic and steric proper- ties. For example, substituents with an electron-donating or electron-withdrawing nature have been utilized to design new materials with effective photophysical ...
Satalkar, Vardhan
core
Substituent Effects at the 5,10-Positions of Dianilinotripyrrins on Their Dimerization Dynamics
, 2022 Control of the association behavior by the molecular design is one of the most essential benefits in artificial supramolecular systems. 1,14-Dianilinotripyrrin has recently emerged as a novel conjugated molecule which forms a double helix in non-polar ...
Ayane, Nishiyama +4 more
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Substituent effect on IR, 1H and 13C NMR spectral data in n-(substituted phenyl)-2-cyanoacetamides: A correlation study [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2013 Linear free energy relationships (LFER) were applied to the IR, 1H and 13C NMR spectral data of N-(substituted phenyl)-2-cyanoacetamides. A variety of substituents were employed for phenyl substitution and fairly good correlations were obtained using ...
Marinković Aleksandar D. +5 more
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A survey on the characterization and biological activity of isatin derivatives [PDF]
Journal of the Serbian Chemical Society, 2020 The derivatives of isatin have already been known to display a variety of biological activities. Therefore, the studies on their activity and its relation to structure have recently become a popular subject for investigation.
Drmanić Saša Ž. +4 more
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The substituent effect on benzene dications
Phys. Chem. Chem. Phys., 2014 It was shown that the substituent effect in the dicationic benzene ring, which is a 4nπ-electron system, can be numerically quantified and then further interpreted.
Palusiak, Marcin +3 more
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Substituent and Solvent Effect Studies of N-Alkenylnitrone 4π-Electrocyclizations
, 2022 The roles of substituent and solvent effects in promoting the 4π-electrocyclization of N-alkenylnitrones to give azetidine nitrones have been investigated by experimental examination of relative rates, activation energies, and linear free energy ...
Laura, Alonso +5 more
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