6533b861fe1ef96bd12c42df

RESEARCH PRODUCT

Reorientations and translations in a fragile glass-former: magnetic resonance studies of meta-fluoroaniline

C. Alba-simionescoO. KircherRoland Böhmer

subject

Arrhenius equationCondensed matter physicsProtonChemistryOrganic ChemistrySpin–lattice relaxationMagnetostaticsHomonuclear moleculeAnalytical ChemistryInorganic ChemistrySpin–spin relaxationsymbols.namesakeHeteronuclear moleculesymbolsRelaxation (physics)Spectroscopy

description

Abstract The rotational dynamics in supercooled liquid and glassy meta-fluoroaniline was studied using proton and fluorine spin-lattice relaxation times. It is shown that while proton relaxation is dominated by homonuclear relaxation, for fluorine heteronuclear relaxation prevails. The results could be well described using a distribution of correlation times. The mean correlation times show pronounced deviations from the simple Arrhenius law. In addition translational self-diffusion coefficients were measured for T>200 K using a static magnetic field gradient technique.

yearjournalcountryeditionlanguage
1999-04-01Journal of Molecular Structure
https://doi.org/10.1016/s0022-2860(98)00870-9