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

using model chemistry: B97D3/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B97D3/6-31G*
 hartrees
Energy at 0K-296.137804
Energy at 298.15K-296.142690
HF Energy-296.137804
Nuclear repulsion energy 
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 B97D3/6-31G*
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 3164 3102 0.00      
2 Ag 1407 1379 0.00      
3 Ag 1012 992 0.00      
4 Ag 741 726 0.00      
5 Au 290 285 0.00      
6 B1u 3162 3100 20.76      
7 B1u 1192 1168 56.32      
8 B1u 1071 1050 0.25      
9 B2g 962 943 0.00      
10 B2g 802 786 0.00      
11 B2u 1445 1417 2.79      
12 B2u 1121 1099 7.72      
13 B2u 959 940 26.99      
14 B3g 1504 1475 0.00      
15 B3g 1299 1274 0.00      
16 B3g 634 622 0.00      
17 B3u 891 873 0.76      
18 B3u 148 145 54.63      

Unscaled Zero Point Vibrational Energy (zpe) 10901.5 cm-1
Scaled (by 0.9804) Zero Point Vibrational Energy (zpe) 10687.8 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 B97D3/6-31G*
ABC
0.22558 0.20696 0.10794

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-31G*

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.268
C2 0.000 0.000 -1.268
N3 0.000 1.206 0.667
N4 0.000 -1.206 0.667
N5 0.000 -1.206 -0.667
N6 0.000 1.206 -0.667
H7 0.000 0.000 2.358
H8 0.000 0.000 -2.358

Atom - Atom Distances (Å)
  C1 C2 N3 N4 N5 N6 H7 H8
C12.53581.34721.34722.28012.28011.09063.6264
C22.53582.28012.28011.34721.34723.62641.0906
N31.34722.28012.41182.75641.33442.07723.2571
N41.34722.28012.41181.33442.75642.07723.2571
N52.28011.34722.75641.33442.41183.25712.0772
N62.28011.34721.33442.75642.41183.25712.0772
H71.09063.62642.07722.07723.25713.25714.7169
H83.62641.09063.25713.25712.07722.07724.7169

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 117.080 C1 N4 N5 117.080
C2 N5 N4 117.080 C2 N6 N3 117.080
N3 C1 N4 125.840 N3 C1 H7 117.080
N4 C1 H7 117.080 N5 C2 N6 125.840
N5 C2 H8 117.080 N6 C2 H8 117.080
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.184      
2 C 0.184      
3 N -0.191      
4 N -0.191      
5 N -0.191      
6 N -0.191      
7 H 0.199      
8 H 0.199      


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 -32.227 0.000 0.000
y 0.000 -43.065 0.000
z 0.000 0.000 -27.813
Traceless
 xyz
x 3.212 0.000 0.000
y 0.000 -13.045 0.000
z 0.000 0.000 9.834
Polar
3z2-r219.667
x2-y210.838
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.025 0.000 0.000
y 0.000 6.750 0.000
z 0.000 0.000 8.148


<r2> (average value of r2) Å2
<r2> 105.064
(<r2>)1/2 10.250