Table 2. Deviations in ppm for Predicting 31P NMR Chemical Shifts in Solvated ATP and ADP Molecules under Minimal Ionic Conditionsa.
| |δPcalc. – δPexp.|/ppm |
||||||
|---|---|---|---|---|---|---|
| Pα | Pβ | Pγ | P̅ | |||
| min. ionic conditions | ATP | MM | 2.66 | 4.19 | 13.27 | 6.71 |
| QM | 1.76 | 2.30 | 1.95 | 2.00 | ||
| ADP | MM | 2.66 | 13.08 | − | 7.87 | |
| QM | 1.75 | 2.25 | − | 2.00 | ||
P̅ denotes the average deviations.