Comparison of Spin-lattice Relaxation Measurements Made in the Presence of Strong Radiation Damping
- Author(s): Taylor, Robert E
- Peterson, Robert D.
- et al.
Published Web Locationhttps://doi.org/10.1016/j.molstruc.2010.02.071
The scientific literature contains reports of external magnetic fields affecting the fundamental properties and structure of water, including a report of the rotational motion of water molecules being slowed due to increased hydrogen bonding resulting from magnetic treatment. To investigate such a change in molecular motion, 1H spin-lattice relaxation times of water were measured at increasing magnetic field strengths. Strong radiation damping was observed at each magnetic field strength when using inversion-recovery experiments. To measure the relaxation times in the presence of radiation damping, several experimental methods of saturation recovery to measure spin-lattice relaxation were applied to a 90% H2O sample to obtain results as a function of field strength for proton frequencies from 300 to 800 MHz.
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