Table 1.
Tautomer | NEIL1 242R | NEIL1 242K |
Tg (lactam) | 0.0* | 0.0 |
Tg4-OH | −6.2 | −7.8 |
Tg2-OH | −9.6 | −10.8 |
Unit: kcal/mol.
The corresponding minimized energy of lactam Tg–NEIL1 was set as the reference for calculating tautomerization energy of Tg4-OH and Tg2-OH in each system (R242 or K242). ΔEtau = E(X) − E(Tg), X = Tg4-OH or Tg2-OH.