Nuclear magnetic resonance spin-lattice

Nuclear magnetic resonance spin-lattice relaxation 241... 

Dynamics of Poly(oxyethylene) Melts Comparison of 13C Nuclear Magnetic Resonance Spin-Lattice Relaxation and Dielectric Relaxation as Determined from Simulations and Experiments. 

B. D. Sykes, W. E. Hull, and G.H. Snyder, Biophys. /, 21, 137 (1978). Experimental Evidence for the Role of Cross-relaxation in Proton Nuclear Magnetic Resonance Spin Lattice Relaxation Time Measurements in Proteins. 

D. C. Look and I. J. Lowe, "Effect of hindered molecular rotation between unequal potential wells upon nuclear magnetic resonance spin-lattice relaxation times and second moments,"... 

A nuclear magnetic resonance spin-lattice relaxation technique was recently successfully demonstrated on a number of types of porous media. The basic principle is that the portion of pore fluid near a pore wall undergoes spin-lattice relaxation in a magnetic field faster than pore fluid removed from the pore wall [45]. 

The proton spin-lattice relaxation-rate (R,) is a well established, nuclear magnetic resonance (n.m.r.) parameter for structural, configurational, and conformational analysis of organic molecules in solution. " As yet, however, its utility has received little attention in the field of carbohydrate chemistry,... 

Electron spin resonance (ESR) measures the absorption spectra associated with the energy states produced from the ground state by interaction with the magnetic field. This review deals with the theory of these states, their description by a spin Hamiltonian and the transitions between these states induced by electromagnetic radiation. The dynamics of these transitions (spin-lattice relaxation times, etc.) are not considered. Also omitted are discussions of other methods of measuring spin Hamiltonian parameters such as nuclear magnetic resonance (NMR) and electron nuclear double resonance (ENDOR), although results obtained by these methods are included in Sec. VI. 

From its very beginning nuclear magnetic resonance (NMR) was used to unravel dynamic processes in amorphous matter, where the high selectivity of this technique was exploited. Recent progress has largely benefited from the development of multidimensional NMR spectroscopy, significantly extending the traditional techniques such as spin-lattice relaxation and line-shape analyses. Modern NMR techniques helped a lot to understand the molecular dynamics in disordered systems such as the a-process. 

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