Effect of Coupling between Rotational and Translational Brownian Motions on NMR Spin Relaxation: Consideration Using Green Function of Rigid Body Diffusion.
Using the Green function of arbitrary rigid Brownian diffusion (Goldstein, Biopolymers 33, 409-436, 1993), it was analytically shown that coupling between translation and rotation diffusion degrees of freedom does not affect the correlation functions relevant to the NMR intramolecular relaxation. It follows that spectral densities usually used for the anisotropic rotation diffusion (Woessner, J. Chem. Phys. 37, 647-654, 1962) can be regarded as exact in respect to the rotation-translation coupling for the spin system connected with a rigid body. Copyright 1998 Academic Press.
Beloborodov
IS
Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Science, ul. Miklukho-Maklaya 16/10, Moscow, 117871, Russia
Orekhov
VY
Arseniev
AS