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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-295.327096
Energy at 298.15K-295.332549
Nuclear repulsion energy214.571816
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
(Å4/u)
Dep P Dep U
1 Ag 3379 3121 0.00      
2 Ag 1641 1516 0.00      
3 Ag 1133 1046 0.00      
4 Ag 795 734 0.00      
5 Au 403 372 0.00      
6 B1u 3377 3119 5.23      
7 B1u 1330 1229 72.21      
8 B1u 1156 1068 3.91      
9 B2g 1048 968 0.00      
10 B2g 854 789 0.00      
11 B2u 1584 1463 2.83      
12 B2u 1229 1136 16.06      
13 B2u 954 881 73.32      
14 B3g 1718 1587 0.00      
15 B3g 1406 1298 0.00      
16 B3g 679 627 0.00      
17 B3u 985 910 1.43      
18 B3u 353 326 57.52      

Unscaled Zero Point Vibrational Energy (zpe) 12011.6 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 11095.1 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
0.23160 0.21539 0.11160

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 1.257
C2 0.000 0.000 -1.257
N3 0.000 1.182 0.653
N4 0.000 -1.182 0.653
N5 0.000 -1.182 -0.653
N6 0.000 1.182 -0.653
H7 0.000 0.000 2.334
H8 0.000 0.000 -2.334

Atom - Atom Distances (Å)
  C1 C2 N3 N4 N5 N6 H7 H8
C12.51331.32711.32712.24622.24621.07693.5902
C22.51332.24622.24621.32711.32713.59021.0769
N31.32712.24622.36412.70121.30682.05433.2123
N41.32712.24622.36411.30682.70122.05433.2123
N52.24621.32712.70121.30682.36413.21232.0543
N62.24621.32711.30682.70122.36413.21232.0543
H71.07693.59022.05432.05433.21233.21234.6671
H83.59021.07693.21233.21232.05432.05434.6671

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 117.037 C1 N4 N5 117.037
C2 N5 N4 117.037 C2 N6 N3 117.037
N3 C1 N4 125.926 N3 C1 H7 117.037
N4 C1 H7 117.037 N5 C2 N6 125.926
N5 C2 H8 117.037 N6 C2 H8 117.037
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability