High-field EPR of irradiated inclusion compounds

High-field EPR can be successfully used to study the dynamics of guest molecules in inclusion compounds. A radical guest has been obtained by γ-irradiation of the inclusion compound nonadecan-10-one in perhydrotriphenylene. The rotational motion of the radicals inside the host channels is fast and t...

Full description

Saved in:
Bibliographic Details
Published in:Chemical physics letters 1999-07, Vol.308 (5), p.408-412
Main Authors: Segre, Ulderico, Brustolon, Marina, Brunel, Louis Claude, Maniero, Anna Lisa
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:High-field EPR can be successfully used to study the dynamics of guest molecules in inclusion compounds. A radical guest has been obtained by γ-irradiation of the inclusion compound nonadecan-10-one in perhydrotriphenylene. The rotational motion of the radicals inside the host channels is fast and the relaxation effect on the X-band EPR line shapes is small. The line widths of the W-band EPR spectra (108 GHz) are significantly larger since the molecular rotation modulates the g -tensor of the radical. Analysis of the relaxation effects shows that the X-band and W-band EPR are complementary. The former gives the maximum information at low temperature, while the latter is useful at higher temperatures.
ISSN:0009-2614
1873-4448
DOI:10.1016/S0009-2614(99)00629-6