Effect of Coupling between Rotational and Translational Brownian Motions on NMR Spin Relaxation: Consideration Using Green Function of Rigid Body Diffusion

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• 作者：Beloborodov ; Igor S. ; Orekhov ; Vladislav Yu. ; Arseniev ; Alexander S.
• 刊名：Journal of Magnetic Resonance
• 出版年：1998
• 出版时间：June, 1998
• 年：1998
• 卷：132
• 期：2
• 页码：328-329
• 全文大小：98.3 K

文摘

Using the Green function of arbitrary rigid Brownian diffusion (Goldstein,Biopolymers33, 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.