ISSN:
1572-879X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract The analysis of the ESR-spectra obtained upon the sorption of dienes and olefins on H-mordenite shows that molecules of dienes are not very reactive in oligomerization inside HM-channels. Warming of HM with presorbed 1,4-pentadiene or 1,5-hexadiene results in the selective cyclization of molecules inside the HM channels. In contrast cyclization of dienes does not take place inside the narrower channels of H-ZSM5 in spite of the fact that the nature of both acid and redox sites in these two zeolites is the same. This clearly demonstrates the reality of transition state selectivity.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00774873
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