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- W2021036296 abstract "The Forsen-Hoffman spin-saturation method of relating exchange rates to the spin-lattice relaxation time, T1, has been applied to the 13C spectrum of N,N-dimethylformamide. The rate of methyl group exchange can be determined for a two-site exchange problem by measuring the size of the signal at one site in the absence and presence of a strong radiofrequency magnetic field at the second site, provided that T1 can be measured. In the case of N,N-dimethylformamide, where T1 values for the two methyl groups are markedly different, T1 cannot be measured by the conventional (Td−π−t−π2)n pulse sequence when exchange is occurring. However, T1 for one site can be readily calculated from an “apparent” T1 which is measured by the (Td−π−t−π2)n pulse sequence in the presence of a strong radiofrequency magnetic field at the second site." @default.
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- W2021036296 title "The application of the Forsén-Hoffman spin-saturation method of measuring rates of exchange to the 13C NMR spectrum of N,N-dimethylformamide" @default.
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- W2021036296 doi "https://doi.org/10.1016/0022-2364(77)90121-4" @default.
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