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  2. Inductive effect - Wikipedia

    en.wikipedia.org/wiki/Inductive_effect

    In Organic chemistry, the inductive effect in a molecule is a local change in the electron density due to electron-withdrawing or electron-donating groups elsewhere in the molecule, resulting in a permanent dipole in a bond. [1] It is present in a σ (sigma) bond, unlike the electromeric effect which is present in a π (pi) bond.

  3. Swain–Lupton equation - Wikipedia

    en.wikipedia.org/wiki/Swain–Lupton_equation

    Alkyl groups have a low to zero value for F but sensible values for R. This is most commonly explained by hyperconjugation, meaning little to no inductive effects but partial resonance effects. Fig. 2a F values for common substituents. CF 3 has a much higher R/F ratio than other substituents with high degrees of conjugation. This was studied in ...

  4. Organic base - Wikipedia

    en.wikipedia.org/wiki/Organic_base

    Most organic bases are considered to be weak.Many factors can affect the strength of the compounds. One such factor is the inductive effect.A simple explanation of the term would state that electropositive atoms (such as carbon groups) attached in close proximity to the potential proton acceptor have an "electron-releasing" effect, such that the positive charge acquired by the proton acceptor ...

  5. Electrophilic aromatic directing groups - Wikipedia

    en.wikipedia.org/wiki/Electrophilic_aromatic...

    An electron donating group (EDG) or electron releasing group (ERG, Z in structural formulas) is an atom or functional group that donates some of its electron density into a conjugated π system via resonance (mesomerism) or inductive effects (or induction)—called +M or +I effects, respectively—thus making the π system more nucleophilic.

  6. Electron-withdrawing group - Wikipedia

    en.wikipedia.org/wiki/Electron-withdrawing_group

    Electron-withdrawing groups exert an "inductive" or "electron-pulling" effect on covalent bonds. The strength of the electron-withdrawing group is inversely proportional to the pKa of the carboxylic acid. [2] The inductive effect is cumulative: trichloroacetic acid is 1000x stronger than chloroacetic acid.

  7. Chilean prosecutors probe sexual harassment complaint against ...

    www.aol.com/news/chilean-prosecutors-probe...

    Chile launched a preliminary investigation into a sexual harassment complaint against President Gabriel Boric on Tuesday in a blow to his leftwing administration that is grappling with a separate ...

  8. Field effect (chemistry) - Wikipedia

    en.wikipedia.org/wiki/Field_effect_(chemistry)

    A field effect is the polarization of a molecule through space. The effect is a result of an electric field produced by charge localization in a molecule. [1] This field, which is substituent and conformation dependent, can influence structure and reactivity by manipulating the location of electron density in bonds and/or the overall molecule. [2]

  9. Trump tariffs on Canada imports could bring sharply higher ...

    www.aol.com/trump-tariffs-canada-imports-could...

    Donald Trump's proposed tariffs on Canada could increase U.S. gas prices by up to 70 cents a gallon, energy experts say.