The diffusion equation of the spheroid

The correlation function of the Brownian rotational diffusion of a spheroid is

CO(τ) = $\displaystyle {\frac{{1}}{{5}}}$$\displaystyle \sum^{1}_{{i=-1}}$cie-$\scriptstyle {\frac{{\tau}}{{\tau_i}}}$. (15.147)

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

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