Theory of nuclear spin conversion in ethylene
Chemical Physics
2009-11-06 v1 Atomic Physics
Abstract
First theoretical analysis of the nuclear spin conversion in ethylene molecules (13^CCH4) has been performed. The conversion rate was found equal approx. 3x10^{-4} 1/s*Torr, which is in qualitative agreement with the recently obtained experimental value. It was shown that the ortho-para mixing in 13^CCH4 is dominated by the spin-rotation coupling. Mixing of only two pairs of ortho-para levels were found to contribute significantly to the spin conversion.
Cite
@article{arxiv.physics/0008083,
title = {Theory of nuclear spin conversion in ethylene},
author = {P. L. Chapovsky and E. Ilisca},
journal= {arXiv preprint arXiv:physics/0008083},
year = {2009}
}
Comments
20 pages, 5 eps figures