Abstract
Experimentally measured and DFT calculated isotropic hyperfine splitting constants for the nitroxide radicals 4-amino-2,2,5,5- tetramethyl-3-imidazoline-N-oxyl and 4-amino-2,2,6,6-tetramethylpiperidine-N-oxyl were compared to provide the basis for a choice of an appropriate level of low-cost DFT computations of electronic characteristics of nitroxide radicals.
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