All results from a given calculation for C4H4N2 (Pyrazine)
using model chemistry: CID/cc-pVDZ
19 10 17 12 22
States and conformations
| State |
Conformation |
minimum conformation |
conformer description |
state description |
| 1 |
1 |
yes |
D2H |
1Ag |
Energy calculated at CID/cc-pVDZ
| | hartrees |
| Energy at 0K | -263.403303 |
| Energy at 298.15K | -263.398095 |
| Nuclear repulsion energy | 209.296589 |
The energy at 298.15K was derived from the energy at 0K
and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CID/cc-pVDZ
Geometric Data calculated at CID/cc-pVDZ
Point Group is D2h
Cartesians (Å)
| Atom |
x (Å) |
y (Å) |
z (Å) |
| N1 |
0.000 |
0.000 |
1.406 |
| N2 |
0.000 |
0.000 |
-1.406 |
| C3 |
0.000 |
1.126 |
0.697 |
| C4 |
0.000 |
-1.126 |
0.697 |
| C5 |
0.000 |
-1.126 |
-0.697 |
| C6 |
0.000 |
1.126 |
-0.697 |
| H7 |
0.000 |
2.062 |
1.251 |
| H8 |
0.000 |
-2.062 |
1.251 |
| H9 |
0.000 |
-2.062 |
-1.251 |
| H10 |
0.000 |
2.062 |
-1.251 |
Atom - Atom Distances (Å)
| |
N1 |
N2 |
C3 |
C4 |
C5 |
C6 |
H7 |
H8 |
H9 |
H10 |
| N1 | | 2.8129 | 1.3305 | 1.3305 | 2.3857 | 2.3857 | 2.0677 | 2.0677 | 3.3634 | 3.3634 |
N2 | 2.8129 | | 2.3857 | 2.3857 | 1.3305 | 1.3305 | 3.3634 | 3.3634 | 2.0677 | 2.0677 | C3 | 1.3305 | 2.3857 | | 2.2511 | 2.6478 | 1.3940 | 1.0878 | 3.2352 | 3.7355 | 2.1612 | C4 | 1.3305 | 2.3857 | 2.2511 | | 1.3940 | 2.6478 | 3.2352 | 1.0878 | 2.1612 | 3.7355 | C5 | 2.3857 | 1.3305 | 2.6478 | 1.3940 | | 2.2511 | 3.7355 | 2.1612 | 1.0878 | 3.2352 | C6 | 2.3857 | 1.3305 | 1.3940 | 2.6478 | 2.2511 | | 2.1612 | 3.7355 | 3.2352 | 1.0878 | H7 | 2.0677 | 3.3634 | 1.0878 | 3.2352 | 3.7355 | 2.1612 | | 4.1237 | 4.8232 | 2.5017 | H8 | 2.0677 | 3.3634 | 3.2352 | 1.0878 | 2.1612 | 3.7355 | 4.1237 | | 2.5017 | 4.8232 | H9 | 3.3634 | 2.0677 | 3.7355 | 2.1612 | 1.0878 | 3.2352 | 4.8232 | 2.5017 | | 4.1237 | H10 | 3.3634 | 2.0677 | 2.1612 | 3.7355 | 3.2352 | 1.0878 | 2.5017 | 4.8232 | 4.1237 | |
More geometry information
Calculated Bond Angles
| atom1 |
atom2 |
atom3 |
angle |
|
atom1 |
atom2 |
atom3 |
angle |
| N1 |
C3 |
C6 |
122.222 |
|
N1 |
C3 |
H7 |
117.174 |
| N1 |
C4 |
C5 |
122.222 |
|
N1 |
C4 |
H8 |
117.174 |
| N2 |
C5 |
C4 |
122.222 |
|
N2 |
C5 |
H9 |
117.174 |
| N2 |
C6 |
C3 |
122.222 |
|
N2 |
C6 |
H10 |
117.174 |
| C3 |
N1 |
C4 |
115.556 |
|
C3 |
C6 |
H10 |
120.605 |
| C4 |
C5 |
H9 |
120.605 |
|
C5 |
N2 |
C6 |
115.556 |
| C5 |
C4 |
H8 |
120.605 |
|
C6 |
C3 |
H7 |
120.605 |
Electronic energy levels
Electronic state
Charges, Dipole, Quadrupole and Polarizability