The diffusion equation of the ellipsoid

The correlation function of the Brownian rotational diffusion of an ellipsoid is

CO(τ) = $\displaystyle {\frac{{1}}{{5}}}$$\displaystyle \sum^{2}_{{i=-2}}$cie-$\scriptstyle {\frac{{\tau}}{{\tau_i}}}$. (15.110)

where ci are the weights of the five exponential terms which are dependent on the orientation of the XH bond vector and τi are the correlation times of the five exponential terms.

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