Article

Conformational dynamics of some short-chain biradicals in solutions

Applied Magnetic Resonance (impact factor: 0.75). 05/2012; 19(2):187-196. DOI:10.1007/BF03162273 pp.187-196

ABSTRACT Intramolecular electron spin exchange, as a function of temperature and the solvent nature, has been studied by X-band electron
paramagnetic resonance (EPR) spectroscopy in five short-chain flexible nitroxide biradicals. Certain thermodynamic parameters
of the conformational rearrangements were calculated from the EPR spectra. The process of spin exchange in short flexible
biradicals has some peculiarities in comparison with that in long-chain molecules.

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