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

using model chemistry: CID/6-311G*

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/6-311G*
 hartrees
Energy at 0K-295.415386
Energy at 298.15K-295.420849
Nuclear repulsion energy215.134514
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/6-311G*
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 3358 3120 0.00      
2 Ag 1639 1522 0.00      
3 Ag 1129 1049 0.00      
4 Ag 796 739 0.00      
5 Au 399 371 0.00      
6 B1u 3357 3119 5.93      
7 B1u 1322 1228 69.31      
8 B1u 1158 1076 3.94      
9 B2g 1040 966 0.00      
10 B2g 859 798 0.00      
11 B2u 1576 1465 2.19      
12 B2u 1225 1138 19.32      
13 B2u 929 863 73.28      
14 B3g 1711 1589 0.00      
15 B3g 1393 1294 0.00      
16 B3g 677 629 0.00      
17 B3u 982 912 2.20      
18 B3u 358 333 57.35      

Unscaled Zero Point Vibrational Energy (zpe) 11953.0 cm-1
Scaled (by 0.9291) Zero Point Vibrational Energy (zpe) 11105.5 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/6-311G*
ABC
0.23298 0.21638 0.11219

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-311G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.253
C2 0.000 0.000 -1.253
N3 0.000 1.179 0.651
N4 0.000 -1.179 0.651
N5 0.000 -1.179 -0.651
N6 0.000 1.179 -0.651
H7 0.000 0.000 2.330
H8 0.000 0.000 -2.330

Atom - Atom Distances (Å)
  C1 C2 N3 N4 N5 N6 H7 H8
C12.50671.32441.32442.23972.23971.07633.5831
C22.50672.23972.23971.32441.32443.58311.0763
N31.32442.23972.35872.69391.30142.05183.2052
N41.32442.23972.35871.30142.69392.05183.2052
N52.23971.32442.69391.30142.35873.20522.0518
N62.23971.32441.30142.69392.35873.20522.0518
H71.07633.58312.05182.05183.20523.20524.6594
H83.58311.07633.20523.20522.05182.05184.6594

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 117.068 C1 N4 N5 117.068
C2 N5 N4 117.068 C2 N6 N3 117.068
N3 C1 N4 125.863 N3 C1 H7 117.068
N4 C1 H7 117.068 N5 C2 N6 125.863
N5 C2 H8 117.068 N6 C2 H8 117.068
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability