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Table 2 QM results in gas phase

From: Interaction of sulfasalazine with outer surface of boron-nitride nanotube as a drug carrier in aqueous solution: insights from quantum mechanics and Monte Carlo simulation

Species

Dipole moment (Debye)

Energy

(kcal /mol)

Binding energy

(kcal /mol)

BNNT

13.72

− 4,957,999.32

–

SSZ (enol form)

5.24

− 1,058,804.12

–

SSZ (keto form)

7.91

− 1,058,794.61

–

SSZ (enol)–BNNT-via carbonyl-ver1

13.52

− 6,016,807.22

− 3.78

SSZ (enol)–BNNT-via carbonyl-ver2

7.71

− 6,016,802.45

− 2.27

SSZ (enol)–BNNT-via sulfonamide

14.96

− 6,016,802.45

0.99

SSZ (keto)–BNNT-via carbonyl-ver1

21.78

− 6,016,812.11

− 18.18

SSZ (keto)–BNNT-via carbonyl-ver2

22.68

− 6,016,818.58

− 24.64

SSZ (keto)–BNNT-via sulfonamide

21.27

− 6,016,810.92

− 16.99

SSZ (keto)–BNNT-via pyridine

14.49

− 6,016,799.32

− 5.39