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. 2013 Jul 19;3(3):386–402. doi: 10.3390/life3030386

Figure 1.

Figure 1

(a) 31P-NMR (298 K, H2O solvent with D2O insert, 320 scans) of a sample of PPi(III) (15 mmol) and Pi(V) (17 mmol) after 48 h incubation, 15 °C at pH 7 showing clearly isohypophosphate formation; (b) 31P-NMR of PPi(III–V) (298 K, H2O; pH 8; 320 scans): δ–4.43 [dd, 1JPH = 653 Hz, 2JPP = 17 Hz, Pi(III)]; –6.08 [d, 2JPP = 17 Hz, Pi(V)].