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

using model chemistry: B1B95/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at B1B95/6-311G**
 hartrees
Energy at 0K-296.285627
Energy at 298.15K-296.290817
Nuclear repulsion energy213.847472
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 B1B95/6-311G**
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 3219 3090 0.00      
2 Ag 1511 1450 0.00      
3 Ag 1066 1023 0.00      
4 Ag 753 723 0.00      
5 Au 333 319 0.00      
6 B1u 3217 3089 7.47      
7 B1u 1246 1196 59.19      
8 B1u 1097 1053 2.30      
9 B2g 997 957 0.00      
10 B2g 832 798 0.00      
11 B2u 1486 1427 2.16      
12 B2u 1168 1121 13.27      
13 B2u 1006 966 35.46      
14 B3g 1591 1527 0.00      
15 B3g 1328 1275 0.00      
16 B3g 639 613 0.00      
17 B3u 932 895 1.62      
18 B3u 247 238 56.79      

Unscaled Zero Point Vibrational Energy (zpe) 11333.1 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 10880.9 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 B1B95/6-311G**
ABC
0.23090 0.21321 0.11085

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-311G**

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 0.657
N4 0.000 -1.188 0.657
N5 0.000 -1.188 -0.657
N6 0.000 1.188 -0.657
H7 0.000 0.000 2.338
H8 0.000 0.000 -2.338

Atom - Atom Distances (Å)
  C1 C2 N3 N4 N5 N6 H7 H8
C12.51091.33041.33042.25132.25131.08263.5935
C22.51092.25132.25131.33041.33043.59351.0826
N31.33042.25132.37622.71511.31362.05873.2219
N41.33042.25132.37621.31362.71512.05873.2219
N52.25131.33042.71511.31362.37623.22192.0587
N62.25131.33041.31362.71512.37623.22192.0587
H71.08263.59352.05872.05873.22193.22194.6761
H83.59351.08263.22193.22192.05872.05874.6761

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 116.743 C1 N4 N5 116.743
C2 N5 N4 116.743 C2 N6 N3 116.743
N3 C1 N4 126.514 N3 C1 H7 116.743
N4 C1 H7 116.743 N5 C2 N6 126.514
N5 C2 H8 116.743 N6 C2 H8 116.743
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.128      
2 C 0.128      
3 N -0.146      
4 N -0.146      
5 N -0.146      
6 N -0.146      
7 H 0.164      
8 H 0.164      


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 -32.328 0.000 0.000
y 0.000 -43.642 0.000
z 0.000 0.000 -27.941
Traceless
 xyz
x 3.464 0.000 0.000
y 0.000 -13.508 0.000
z 0.000 0.000 10.044
Polar
3z2-r220.089
x2-y211.314
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.396 0.000 0.000
y 0.000 6.733 0.000
z 0.000 0.000 8.035


<r2> (average value of r2) Å2
<r2> 103.082
(<r2>)1/2 10.153