Abstract
Spectral hole burning is used to measure spin-conversion relaxation of methyl groups attached to a dye probe. The dye is dimethyl-s-tetrazine, the host is n-octane, which is, at low temperatures, a Shpol'skii-matrix. The temperature dependence of the spin-conversion relaxation follows the same pattern for the protonated and the perdeuterated methyl-rotor. However, the relaxation rates of the perdeuterated rotor are higher by almost two orders of magnitude. Partial deuteration destroys the rotor symmetry and leads to a breakdown of the correlation between nuclear spin and rotational wave function.
Original language | English |
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Pages (from-to) | 1-6 |
Number of pages | 6 |
Journal | Journal of Chemical Physics |
Volume | 99 |
Issue number | 1 |
DOIs | |
State | Published - 1993 |
Externally published | Yes |