6533b856fe1ef96bd12b3025

RESEARCH PRODUCT

EPR, ENDOR and TRIPLE resonance of amino-substituted 9,10-anthraquinone radicals and the rotation of the amino groups in the solution phase

Jussi ElorantaHilkka HeikkiläReijo MäkeläMikko VuolleVirpi VatanenAntti Grönroos

subject

RadicalResonanceGeneral ChemistryENDORRotationAnthraquinoneSolution phaselaw.inventionchemistry.chemical_compoundAminoanthraquinoneschemistryRotation barrierTRIPLEComputational chemistrylawPhysical chemistryGeneral Materials ScienceEPRElectron paramagnetic resonance

description

EPR, ENDOR and TRIPLE resonance spectra were recorded for 1-amino-9,10-anthraquinone (1-aminoAQ), 2-aminoAQ, 1,2-diaminoAQ, 1.4-diaminoAQ, 1,5-diaminoAQ and 2,6-diaminoAQ anion radicals in the solution phase. The rotation of the amino groups is discussed with reference to the experimental data. Rotation barrier calculations were carried out using B3PW91/3-21G* density functional method. The amino groups at positions 1, 4, 5, 8 were found not to be in rotational movement up to the EPR time-scale.

10.1002/(sici)1097-458x(199611)34:11<903::aid-omr986>3.0.co;2-8https://cris.vtt.fi/en/publications/9dd546cb-d2c3-4789-854c-15400711f056