| NO | NO2 | |||||
| System | Atomsite | Bondsite | Vacantsite | Atomsite | Bondsite | Vacantsite |
| 50 | −0.20 | −0.21 | −0.23 | 0.12 | −0.92 | −0.35 |
| 90 | −0.14 | −0.16 | −0.26 | −0.23 | −0.21 | −0.22 |
| 55 | −0.13 | −0.16 | −0.11 | −0.15 | −0.37 | −0.17 |
| 66 | −0.17 | −0.17 | −0.19 | −0.14 | −0.38 | −0.16 |