Kinetics and spectral properties of electron and •OH adducts of dimethylpyridines: a pulse radiolysis study

Kinetics and spectral properties of electron and •OH adducts of dimethylpyridines: a pulse... The reactions of eaq -, •OH, O•- and SO•- 4 with 2,4-, 2,6- and 3,5-dimethylpyridines have been investigated in aqueous solution by pulse radiolysis with optical detection. Both eaq - and •OH radicals have high reactivity toward these compounds with k = (4-8) × 109 dm3 mol-1 s-1. The rates of O•- and SO•4 - reactions ((1-3) × 109 dm3 mol-1 s-1) were lower compared to the rate observed with the •OH radical. The transient absorption spectra obtained in the reaction of eaq - with three isomers exhibited a weak broad band around 340-410 nm. The absorption maxima of the intermediates formed in the •OH and SO•4 - reactions were centred around 320-330 nm (ε = 2450-3500 dm3 mol-1 cm-1) with an additional broad peak in the range 460-520 nm which are attributed to the corresponding •OH adducts. The spectra in the O•- reaction have absorption maxima between 300 and 320 nm and it reacts both by addition and H-abstraction from the CH3 group. A reaction mechanism consistent with the observed results is proposed. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Kinetics and spectral properties of electron and •OH adducts of dimethylpyridines: a pulse radiolysis study

Loading next page...
 
/lp/springer_journal/kinetics-and-spectral-properties-of-electron-and-oh-adducts-of-Hi7aeVbCGH
Publisher
Brill Academic Publishers
Copyright
Copyright © 2003 by VSP 2003
Subject
Chemistry; Inorganic Chemistry; Physical Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856703321505058
Publisher site
See Article on Publisher Site

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches

$49/month

Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.

$588

$360/year

billed annually
Start Free Trial

14-day Free Trial