A simple FORTRAN program, called POWDERSPEC, for simulating the second-order powder patterns and the electron paramagnetic resonance (EPR) spectra of ions in an orthorhombic crystal field, or nuclear resonance (NMR) from a crystal with quadrupole interaction, is introduced. POWDERSPEC can be used ov
Simulation of Multiple Isotropic Spin-Trap EPR Spectra
β Scribed by D.R. Duling
- Publisher
- Elsevier Science
- Year
- 1994
- Tongue
- English
- Weight
- 381 KB
- Volume
- 104
- Category
- Article
- ISSN
- 1064-1866
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β¦ Synopsis
A computer program has been developed for fitting EPR data with multiple free radicals as formed in biochemical and chemical spin-trapping systems. Simulation of these spectra requires as many as 40 independent parameters, creating a chaotic analysis environment. Accurate simulation of these systems is essential for correct identification of the free radicals, which often show only slight differences in spin-Hamiltonian parameters. This method consists of rule-based perturbations with trial and error calculations and has proven successful in several applications. Details of the algorithm, example data, and a discussion of the difficulties of this analysis are presented in this report.
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