| Issue |
Europhys. Lett.
Volume 66, Number 3, May 2004
|
|
|---|---|---|
| Page(s) | 378 - 384 | |
| Section | Condensed matter: structure, mechanical and thermal properties | |
| DOI | https://doi.org/10.1209/epl/i2003-10221-1 | |
| Published online | 01 April 2004 | |
Controlling and measuring conformational properties of 
-alkane ultraconfined in
urea: A high-pressure 
NMR study
Groupe Matière Condensée et Matériaux, UMR6626 au CNRS, Université Rennes I Campus de Beaulieu, 35042 Rennes Cedex, France
Corresponding author: christophe.odin@univ-rennes1.fr
Received:
24
November
2003
Accepted:
2
March
2004
high-resolution solid-state NMR experiments were performed
on the intergrowth compound 
/urea at ambient
temperature and helium pressure up to 4500
in a home-made
NMR probe. These experiments show that the populations of chain
ends gauche conformers can be reversibly modified with
pressure. The trans-gauche volume change 
, free-energy change 
as well as the contribution of the conformational
defects to the chain spring constant 
were
estimated for the first time for an ultraconfined n-alkane.
PACS: 68.65.-k – Low-dimensional, mesoscopic, and nanoscale systems: structure and nonelectronic properties / 76.60.-k – Nuclear magnetic resonance and relaxation / 36.20.Ey – Conformation (statistics and dynamics)
© EDP Sciences, 2004
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.