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All results from a given calculation for C2H2N4 (sym-tetrazine)

using model chemistry: CID/6-31G

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/6-31G
 hartrees
Energy at 0K-294.930705
Energy at 298.15K-294.936078
Nuclear repulsion energy210.519876
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/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3377 3158 0.00      
2 Ag 1494 1397 0.00      
3 Ag 1058 990 0.00      
4 Ag 779 728 0.00      
5 Au 405 379 0.00      
6 B1u 3373 3155 1.01      
7 B1u 1261 1179 75.14      
8 B1u 1114 1042 1.13      
9 B2g 1020 954 0.00      
10 B2g 826 773 0.00      
11 B2u 1517 1419 17.30      
12 B2u 1152 1077 5.87      
13 B2u 798 746 51.43      
14 B3g 1600 1497 0.00      
15 B3g 1374 1285 0.00      
16 B3g 676 632 0.00      
17 B3u 971 908 2.92      
18 B3u 360 337 70.69      

Unscaled Zero Point Vibrational Energy (zpe) 11577.4 cm-1
Scaled (by 0.9352) Zero Point Vibrational Energy (zpe) 10827.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CID/6-31G
ABC
0.22060 0.20929 0.10740

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.291
C2 0.000 0.000 -1.291
N3 0.000 1.199 0.670
N4 0.000 -1.199 0.670
N5 0.000 -1.199 -0.670
N6 0.000 1.199 -0.670
H7 0.000 0.000 2.366
H8 0.000 0.000 -2.366

Atom - Atom Distances (Å)
  C1 C2 N3 N4 N5 N6 H7 H8
C12.58111.35011.35012.29842.29841.07543.6565
C22.58112.29842.29841.35011.35013.65651.0754
N31.35012.29842.39832.74751.34052.07693.2645
N41.35012.29842.39831.34052.74752.07693.2645
N52.29841.35012.74751.34052.39833.26452.0769
N62.29841.35011.34052.74752.39833.26452.0769
H71.07543.65652.07692.07693.26453.26454.7319
H83.65651.07543.26453.26452.07692.07694.7319

picture of sym-tetrazine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 N6 117.350 C1 N4 N5 117.350
C2 N5 N4 117.350 C2 N6 N3 117.350
N3 C1 N4 125.299 N3 C1 H7 117.350
N4 C1 H7 117.350 N5 C2 N6 125.299
N5 C2 H8 117.350 N6 C2 H8 117.350
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability