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

using model chemistry: wB97X-D/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at wB97X-D/6-31+G**
 hartrees
Energy at 0K-296.228021
Energy at 298.15K-296.233268
HF Energy-296.228021
Nuclear repulsion energy213.256119
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 wB97X-D/6-31+G**
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 3268 3113 0.00      
2 Ag 1544 1470 0.00      
3 Ag 1077 1026 0.00      
4 Ag 763 726 0.00      
5 Au 353 336 0.00      
6 B1u 3267 3111 3.75      
7 B1u 1263 1203 59.71      
8 B1u 1107 1054 1.07      
9 B2g 993 945 0.00      
10 B2g 823 784 0.00      
11 B2u 1493 1422 1.28      
12 B2u 1169 1114 11.08      
13 B2u 1010 962 44.33      
14 B3g 1613 1536 0.00      
15 B3g 1331 1268 0.00      
16 B3g 653 622 0.00      
17 B3u 930 886 1.80      
18 B3u 274 261 59.38      

Unscaled Zero Point Vibrational Energy (zpe) 11464.6 cm-1
Scaled (by 0.9523) Zero Point Vibrational Energy (zpe) 10917.8 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 wB97X-D/6-31+G**
ABC
0.22919 0.21239 0.11024

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31+G**

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.265
C2 0.000 0.000 -1.265
N3 0.000 1.190 0.651
N4 0.000 -1.190 0.651
N5 0.000 -1.190 -0.651
N6 0.000 1.190 -0.651
H7 0.000 0.000 2.345
H8 0.000 0.000 -2.345

Atom - Atom Distances (Å)
  C1 C2 N3 N4 N5 N6 H7 H8
C12.52931.33941.33942.25502.25501.08043.6097
C22.52932.25502.25501.33941.33943.60971.0804
N31.33942.25502.38082.71321.30122.07083.2235
N41.33942.25502.38081.30122.71322.07083.2235
N52.25501.33942.71321.30122.38083.22352.0708
N62.25501.33941.30122.71322.38083.22352.0708
H71.08043.60972.07082.07083.22353.22354.6900
H83.60971.08043.22353.22352.07082.07084.6900

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 117.287 C1 N4 N5 117.287
C2 N5 N4 117.287 C2 N6 N3 117.287
N3 C1 N4 125.427 N3 C1 H7 117.287
N4 C1 H7 117.287 N5 C2 N6 125.427
N5 C2 H8 117.287 N6 C2 H8 117.287
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.032      
2 C -0.032      
3 N -0.080      
4 N -0.080      
5 N -0.080      
6 N -0.080      
7 H 0.193      
8 H 0.193      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -32.901 0.000 0.000
y 0.000 -44.746 0.000
z 0.000 0.000 -28.057
Traceless
 xyz
x 3.500 0.000 0.000
y 0.000 -14.267 0.000
z 0.000 0.000 10.766
Polar
3z2-r221.533
x2-y211.845
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.300 0.000 0.000
y 0.000 7.845 0.000
z 0.000 0.000 8.566


<r2> (average value of r2) Å2
<r2> 103.917
(<r2>)1/2 10.194