Effects of zeolites and external magnetic field on photochemistry of arylmethyl esters and arylmethyl sulfones

Effects of zeolites and external magnetic field on photochemistry of arylmethyl esters and... The photolyses of benzyl p-methylphenylacetate (BCO2A), 1-naphthyl phenylacetate (ACO2N), p-methylbenzyl benzyl sulfone (ASO2B) and 1-naphthyl benzyl sulfone (ASO2N) were carried out on the pentasil and faujasite zeolites. The product distribution, in terms of the cage effect, was extremely sensitive to zeolite structure. Photolyses of BCO2A and ASO2B adsorbed on NaZSM-5 produce AB as the main product. In contrast, photoirradiation of ACO2N and ASO2N adsorbed on NaZSM-5 only gives AA and NN as the products, and the cage effect is essentially-100%. All the four substrates adsorbed on NaY zeolite show higher cage effects in the photolysed products compared with those in homogeneous solutions. All the observations are interpreted by consideration of size and shape sorption selectivity of the substrate molecules on the zeolite surface and restriction on diffusional motion of the photogenerated radicals imposed by zeolite surface. Application of a weak external magnetic field in the photolysis decreases the cage effects in all cases, which demonstrates that the reactive states for the photocleavage reaction of the esters and sulfones mainly involve triplet excited states. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Effects of zeolites and external magnetic field on photochemistry of arylmethyl esters and arylmethyl sulfones

Loading next page...
 
/lp/springer_journal/effects-of-zeolites-and-external-magnetic-field-on-photochemistry-of-u25ok7lyQD
Publisher
Springer Netherlands
Copyright
Copyright © 1998 by Springer
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856798X00159
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