Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Methylcyclohexane ring-contraction: A sensitive solid acidity and shape selectivity probe reaction.

Gary B McVicker1, Owen C Feeley, John J Ziemiak

  • 1Corporate Strategic Research Laboratories, ExxonMobil Research and Engineering Company, 1545 Route 22 East, Annandale, New Jersey 08801, USA. gary.b.mcvicker@exxonmobil.com

The Journal of Physical Chemistry. B
|July 21, 2006
PubMed
Summary

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Probing the evolution of adsorption on nanoporous solids by in situ solid-state NMR spectroscopy.

Chemphyschem : a European journal of chemical physics and physical chemistry·2007
Same author

High field 27Al ENDOR reveals the coordination mode of Cu2+ in low Si/Al zeolites.

Journal of the American Chemical Society·2006
Same author

Fine structures of zeolite-Linde-L (LTL): surface structures, growth unit and defects.

Chemistry (Weinheim an der Bergstrasse, Germany)·2004
Same author

Structure of the first silicate molecular sieve with 18-ring pore openings, ECR-34.

Journal of the American Chemical Society·2003
Same author

Constraining asymmetric organometallic catalysts within mesoporous supports boosts their enantioselectivity.

Journal of the American Chemical Society·2003

Methylcyclohexane isomerization effectively characterizes solid acid properties. This reaction provides a richer product mixture than cyclohexane, allowing simultaneous ranking of acid site density, strength, and shape selectivity.

Area of Science:

  • Catalysis
  • Materials Science
  • Physical Chemistry

Background:

  • Solid acids are crucial catalysts in various chemical processes.
  • Characterizing their acidic properties (density, strength, selectivity) is essential for catalyst design.
  • Existing probe reactions often lack the comprehensive information needed.

Purpose of the Study:

  • To introduce methylcyclohexane isomerization as a versatile probe reaction for solid acids.
  • To demonstrate its utility in simultaneously evaluating key acid descriptors.
  • To compare its effectiveness against simpler probe molecules like cyclohexane.

Main Methods:

  • Utilizing an acid-catalyzed isomerization reaction of methylcyclohexane.
  • Analyzing the resulting isomeric mixture of alkylcyclopentanes.

Related Experiment Videos

  • Applying the reaction to a diverse range of platinum-loaded solid acids (amorphous and crystalline).

    • Main Results:

    • Methylcyclohexane isomerization yields a complex product distribution (ethylcyclopentane, dimethylcyclopentanes).
    • This richer product mixture allows for simultaneous ranking of acid site density, strength, and shape selectivity.
    • The reaction proved effective across various solid acid types.

    Conclusions:

    • Methylcyclohexane ring-contraction is a superior single-component probe for characterizing solid acid properties.
    • It offers a more informative analysis compared to cyclohexane isomerization.
    • This method enables simultaneous evaluation of critical solid acid descriptors.