Spin-conversion relaxation in dimethyl-s-tetrazine doped n-octane: Deuteration and symmetry breaking

K. Orth, P. Schellenberg, J. Friedrich

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12 Scopus citations

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 languageEnglish
Pages (from-to)1-6
Number of pages6
JournalJournal of Chemical Physics
Volume99
Issue number1
DOIs
StatePublished - 1993
Externally publishedYes

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