Jove
Visualize
Contact Us

Related Experiment Videos

Microdynamics and phase equilibria in organic nanocrystals

H F Booth1, J H Strange

  • 1School of Physical Sciences, University of Kent, Canterbury, UK.

Magnetic Resonance Imaging
|November 6, 1998
PubMed
Summary

Confinement significantly alters organic molecule dynamics within porous silica. Molecular behavior inside pores differs from bulk, influenced by molecular size, shape, and pore structure.

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

Binary liquid mixtures in porous solids.

The Journal of chemical physics·2004
Same author

Pore surface exploration by NMR.

Magnetic resonance imaging·2003
Same author

An evaluation of NMR cryoporometry, density measurement and neutron scattering methods of pore characterisation.

Magnetic resonance imaging·2001
Same author

Combined MR-relaxation and MR-cryoporometry in the study of bone microstructure.

Magnetic resonance imaging·2001
Same author

Diffusion-weighted imaging of bacteria colonies in the STRAFI plane.

Journal of magnetic resonance (San Diego, Calif. : 1997)·2000
Same author

Diffusion processes in confined materials.

Magnetic resonance imaging·1998
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

Area of Science:

  • Physical Chemistry
  • Materials Science
  • Nanotechnology

Background:

  • Understanding molecular behavior under confinement is crucial for designing advanced materials.
  • Porous materials offer unique environments for studying molecular dynamics.

Purpose of the Study:

  • To investigate the effects of confinement on the molecular dynamics of organic molecules.
  • To compare the behavior of confined molecules with their bulk counterparts.

Main Methods:

  • Nuclear magnetic resonance (NMR) relaxation techniques (T2 and T1 rho) were employed.
  • Experiments were conducted across a temperature range from room temperature down to 77 K.
  • Organic molecules (cyclohexane, pentadecane, squalane, squalene) were confined within 60 Å porous silica.

Main Results:

  • Molecular dynamics of confined organic molecules differed significantly from bulk materials.
  • The behavior of confined molecules was influenced by their size and shape.
  • Structural disorder within the pores played a key role in observed dynamics.

Conclusions:

  • Confinement in porous silica fundamentally alters organic molecule dynamics.
  • Molecular size, shape, and pore-induced structural disorder are critical factors governing confined molecular behavior.

Related Experiment Videos