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Phosphorus-31 magnetic relaxation of phosphocreatine in solution

โœ Scribed by R. Gaspar Jr.; W.S. Brey; E.R. Andrew

Book ID
103030505
Publisher
Elsevier Science
Year
1991
Tongue
English
Weight
329 KB
Volume
184
Category
Article
ISSN
0009-2614

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โœฆ Synopsis

Measurements have been made of the longitudinal phosphoms-31 magnetic relaxation of phosphocreatine in Hz0 and D20 solutions from 2 78 to 333 K at 12 I. 5 and at 40.5 MHz. The phosphorus-3 1 spin-lattice relaxation of phosphocreatine is dominated by intermolecular and intramolecular dipolar and chemical-shift anisotropy interactions. The relative contribution of the two interactions to the spin-lattice relaxation changes with NMR frequency. Activation energies characterizing the solution dynamics of the phosphocreatine molecule in Hz0 and D20 are 15.4 f 1.1 and 14.6 + 1 .O kJ/mol, respectively.

๐Ÿ“œ SIMILAR VOLUMES

Phosphorus-31 magnetic relaxation of ino
Phosphorus-31 magnetic relaxation of inorganic orthophosphate in solution
โœ R. Gaspar Jr.; E.R. Andrew ๐Ÿ“‚ Article ๐Ÿ“… 1990 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 309 KB

Measurements have been made of the longitudinal 3'P magnetic relaxation of inorganic orthophosphate in H,O and D,O solutions at 121.5 MHz from 278 to 317 K. The phosphorus spin-lattice relaxation time is temperature dependent and dominated by dipolar and spin-rotation interactions to a different ext