Digitale Medien
College Park, Md.
:
American Institute of Physics (AIP)
The Journal of Chemical Physics
83 (1985), S. 5495-5500
ISSN:
1089-7690
Quelle:
AIP Digital Archive
Thema:
Physik
,
Chemie und Pharmazie
Notizen:
Heisenberg spin exchange effects on the powder spectra of weakly perturbed triplet states have been studied by simulation techniques. From very small exchange frequencies on, the derivative powder spectrum is dominated by a sharp, essentially constant width, central line whose amplitude exhibits very close to a square-root dependence on the exchange frequency. The derivative powder edge lines are shown to behave according to the single crystal limiting exchange width equation and it is shown that the frequency dependence of the central dominating line provides yet another measure of exchange parameters in physical systems. Application of these methods to the (φ3AsCH+3) (TCNQ)−2 ion radical salt yields results in good agreement with those obtained by other methods.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1063/1.449670
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