Tsuboi M, Takahashi S, Kyogoku Y, Hayatsu H, Ukita T, Kainosho M. Phosphorus-Proton Spin-Spin Coupling and Conformation of a Dinucleoside Phosphate.
Science 1969;
166:1504-5. [PMID:
17742850 DOI:
10.1126/science.166.3912.1504]
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Abstract
The phosphorus-31 nuclear magnetic resonance spectrum of beta-adenosine-3'-beta-adenosine-5'-phosphoric acid in its aqueous solution (pH = 9.2) was studied. The signal consisted of eight peaks caused by the spin-spin coupling of the phosphorus nucleus with three protons, two on the 5' carbon, and one on the 3' carbon. The coupling constants were 3.4, 6.5, and 8.1 hertz; from these values the dihedral angles of the three P-O-C-H systems were estimated.
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