6533b828fe1ef96bd1288d23
RESEARCH PRODUCT
Re-investigation of the conformational interconversion of the 1,2,3,6,7,8-hexahydropyrene cation radical by EPR, ENDOR and TRIPLE spectroscopy
Mikko VuolleReijo Mäkeläsubject
Cation radicalNuclear magnetic resonancelawChemistryPhysical chemistryGeneral Materials ScienceGeneral ChemistryAtmospheric temperature rangeElectron paramagnetic resonanceSpectroscopySpectral lineArrhenius plotlaw.inventiondescription
The conformational interconversion of the 1,2,3,6,7,8-hexahydropyrene cation radical has been re-examined by EPR, ENDOR and TRIPLE spectroscopy, and the Arrhenius plot is presented for a wider temperature range than that used earlier. The EPR spectra were measured from 143 to 369 K and the ENDOR spectra from 143 to 263 K. The thermodynamic constants of the conformational interconversion of the cation radical were determined on the basis of the temperature-dependent spectra. The high-resolution spectra clearly show that there are two overlapping spectra at low temperature, and this is confirmed by simulation.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1985-08-01 | Magnetic Resonance in Chemistry |