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

using model chemistry: SVWN/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 SVWN/6-311G*
 hartrees
Energy at 0K-294.785260
Energy at 298.15K-294.789939
Nuclear repulsion energy213.695559
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 SVWN/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 3117 3087 0.00      
2 Ag 1474 1460 0.00      
3 Ag 1050 1040 0.00      
4 Ag 745 738 0.00      
5 Au 268 266 0.00      
6 B1u 3116 3087 5.49      
7 B1u 1229 1217 58.13      
8 B1u 1075 1065 1.36      
9 B2g 958 949 0.00      
10 B2g 822 814 0.00      
11 B2u 1435 1421 1.82      
12 B2u 1151 1140 8.43      
13 B2u 1053 1043 31.95      
14 B3g 1540 1525 0.00      
15 B3g 1284 1272 0.00      
16 B3g 629 623 0.00      
17 B3u 889 881 1.86      
18 B3u 18 18 65.90      

Unscaled Zero Point Vibrational Energy (zpe) 10926.5 cm-1
Scaled (by 0.9904) Zero Point Vibrational Energy (zpe) 10821.6 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 SVWN/6-311G*
ABC
0.23046 0.21320 0.11075

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

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.255
C2 0.000 0.000 -1.255
N3 0.000 1.188 0.658
N4 0.000 -1.188 0.658
N5 0.000 -1.188 -0.658
N6 0.000 1.188 -0.658
H7 0.000 0.000 2.351
H8 0.000 0.000 -2.351

Atom - Atom Distances (Å)
  C1 C2 N3 N4 N5 N6 H7 H8
C12.50961.32981.32982.25152.25151.09573.6053
C22.50962.25152.25151.32981.32983.60531.0957
N31.32982.25152.37622.71601.31522.06823.2343
N41.32982.25152.37621.31522.71602.06823.2343
N52.25151.32982.71601.31522.37623.23432.0682
N62.25151.32981.31522.71602.37623.23432.0682
H71.09573.60532.06822.06823.23433.23434.7010
H83.60531.09573.23433.23432.06822.06824.7010

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 116.686 C1 N4 N5 116.686
C2 N5 N4 116.686 C2 N6 N3 116.686
N3 C1 N4 126.628 N3 C1 H7 116.686
N4 C1 H7 116.686 N5 C2 N6 126.628
N5 C2 H8 116.686 N6 C2 H8 116.686
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at SVWN/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.029      
2 C -0.029      
3 N -0.124      
4 N -0.124      
5 N -0.124      
6 N -0.124      
7 H 0.276      
8 H 0.276      


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 -32.633 0.000 0.000
y 0.000 -44.050 0.000
z 0.000 0.000 -28.076
Traceless
 xyz
x 3.430 0.000 0.000
y 0.000 -13.696 0.000
z 0.000 0.000 10.266
Polar
3z2-r220.532
x2-y211.417
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.457 0.000 0.000
y 0.000 6.790 0.000
z 0.000 0.000 8.203


<r2> (average value of r2) Å2
<r2> 103.389
(<r2>)1/2 10.168