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

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-296.108727
Energy at 298.15K-296.113583
HF Energy-296.108727
Nuclear repulsion energy211.775537
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 PBEPBE/Def2TZVPP
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 3080 0.00      
2 Ag 1406 1389 0.00      
3 Ag 1014 1002 0.00      
4 Ag 729 720 0.00      
5 Au 290 286 0.00      
6 B1u 3116 3079 10.17      
7 B1u 1190 1176 56.34      
8 B1u 1065 1052 0.26      
9 B2g 968 956 0.00      
10 B2g 812 802 0.00      
11 B2u 1423 1406 2.55      
12 B2u 1117 1104 6.59      
13 B2u 965 954 26.72      
14 B3g 1494 1476 0.00      
15 B3g 1281 1266 0.00      
16 B3g 629 621 0.00      
17 B3u 896 885 1.35      
18 B3u 118 117 55.65      

Unscaled Zero Point Vibrational Energy (zpe) 10816.2 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 10685.3 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 PBEPBE/Def2TZVPP
ABC
0.22677 0.20883 0.10871

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/Def2TZVPP

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.270
C2 0.000 0.000 -1.270
N3 0.000 1.202 0.653
N4 0.000 -1.202 0.653
N5 0.000 -1.202 -0.653
N6 0.000 1.202 -0.653
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
C12.53961.35101.35102.26802.26801.08853.6281
C22.53962.26802.26801.35101.35103.62811.0885
N31.35102.26802.40442.73661.30682.08613.2428
N41.35102.26802.40441.30682.73662.08613.2428
N52.26801.35102.73661.30682.40443.24282.0861
N62.26801.35101.30682.73662.40443.24282.0861
H71.08853.62812.08612.08613.24283.24284.7166
H83.62811.08853.24283.24282.08612.08614.7166

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 117.145 C1 N4 N5 117.145
C2 N5 N4 117.145 C2 N6 N3 117.145
N3 C1 N4 125.710 N3 C1 H7 117.145
N4 C1 H7 117.145 N5 C2 N6 125.710
N5 C2 H8 117.145 N6 C2 H8 117.145
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.014      
2 C 0.014      
3 N -0.071      
4 N -0.071      
5 N -0.071      
6 N -0.071      
7 H 0.127      
8 H 0.127      


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 -32.724 0.000 0.000
y 0.000 -43.824 0.000
z 0.000 0.000 -28.400
Traceless
 xyz
x 3.389 0.000 0.000
y 0.000 -13.262 0.000
z 0.000 0.000 9.873
Polar
3z2-r219.747
x2-y211.100
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.357 0.000 0.000
y 0.000 7.809 0.000
z 0.000 0.000 8.998


<r2> (average value of r2) Å2
<r2> 104.880
(<r2>)1/2 10.241