Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here

Hydrogen abstraction from solvents by the triplet state of p-benzoquinone: a time-resolved electron paramagnetic resonance and laser flash photolysis study

No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Research on Chemical Intermediates

The reaction of triplet p-benzoquinone in several solvents, such as ethanol, 2-propanol, ethylene glycol, t-butanol, 1,4-dioxane, tetrahydrofuran and cyclohexane, has been studied. The primary photochemical event was shown to be a hydrogen atom abstraction from the solvent and not an electron transfer. In the time-resolved EPR experiments, in all cases, except t-butanol and cyclohexane, the radicals from the solvent were recorded along with p-benzosemiquinone radical and the spectra were dominated by triplet mechanism of spin polarization, giving totally emissive EPR signals. The sites of abstracted hydrogen atom have been identified. In particular, whereas the methine hydrogen atom is abstracted from 2-propanol, both the methylene and hydroxyl hydrogen atoms are abstracted from ethanol. From laser flash photolysis experiments, the rate constants of the hydrogen abstraction in all solvents, except t-butanol and cyclohexane, were found to be (1–5) × 108 M−1 s−1.


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Research on Chemical Intermediates — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation