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.
Research on Chemical Intermediates – Springer Journals
Published: Apr 14, 2009
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
Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.
Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.
It’s easy to organize your research with our built-in tools.
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.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera