The relationship between nonexponential relaxation and molecular stiffnessin aromatic model compounds

Authors
Privalko, VP Ezquerra, TA Zolotukhin, M Balta-Calleja, FJ Nequlqueo, G Garcia, C de la Campa, JG de Abajo, J
Citation
Vp. Privalko et al., The relationship between nonexponential relaxation and molecular stiffnessin aromatic model compounds, J CHEM PHYS, 112(12), 2000, pp. 5254-5256
Citations number
26
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF CHEMICAL PHYSICS
ISSN journal
00219606 → ACNP
Volume
112
Issue
12
Year of publication
2000
Pages
5254 - 5256
Database
ISI
SICI code
0021-9606(20000322)112:12<5254:TRBNRA>2.0.ZU;2-X
Abstract
The alpha relaxation of a series of ether-ketone model compounds was studie d to quantify the effect of molecular stiffness on the Kohlrausch-Williams- Watts stretching exponential. The obtained values decrease with increasing stiffness and are within the theoretical bounds predicted for systems with spatial dimensionality varying from 2 to 1. (C) 2000 American Institute of Physics. [S0021-9606(00)51512-8].