Molecular dynamics of C-60 in cocrystals of C-60 and p-bromocalix[4]arene propyl ether

Citation
E. Hughes et al., Molecular dynamics of C-60 in cocrystals of C-60 and p-bromocalix[4]arene propyl ether, J PHYS CH B, 104(4), 2000, pp. 691-694
Citations number
14
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF PHYSICAL CHEMISTRY B
ISSN journal
1520-6106 → ACNP
Volume
104
Issue
4
Year of publication
2000
Pages
691 - 694
Database
ISI
SICI code
1520-6106(20000203)104:4<691:MDOCIC>2.0.ZU;2-D
Abstract
Solid-state NMR experiments have been performed to determine the nature of the molecular motion of C-60 in cocrystals of C-60/p-bromocalix[4]arene pro pyl ether. Throughout the temperature range of this work (room temperature to 130 K), C-60 undergoes fast isotropic reorientation. The C-60 molecular dynamics in the cocrystal are similar to that found in the fee crystal stru cture of pure C-60 The activation energy of C-60 reorientation in the cocry stal is 5.6 +/- 0.2 kJ/mol, and the rotational diffusion constant of C-60 i s 11 x 10(9) s(-1) at room temperature.