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

using model chemistry: B97D3/aug-cc-pVTZ

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/aug-cc-pVTZ
 hartrees
Energy at 0K-296.242760
Energy at 298.15K-296.247718
HF Energy-296.242760
Nuclear repulsion energy212.074591
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/aug-cc-pVTZ
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 3138 3090 0.00      
2 Ag 1397 1375 0.00      
3 Ag 1011 996 0.00      
4 Ag 736 725 0.00      
5 Au 307 303 0.00      
6 B1u 3137 3089 13.31      
7 B1u 1190 1172 57.21      
8 B1u 1073 1056 0.01      
9 B2g 974 959 0.00      
10 B2g 815 802 0.00      
11 B2u 1432 1410 2.11      
12 B2u 1112 1095 6.31      
13 B2u 936 922 26.49      
14 B3g 1491 1468 0.00      
15 B3g 1289 1269 0.00      
16 B3g 641 631 0.00      
17 B3u 901 887 1.16      
18 B3u 154 152 55.36      

Unscaled Zero Point Vibrational Energy (zpe) 10865.8 cm-1
Scaled (by 0.9847) Zero Point Vibrational Energy (zpe) 10699.6 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 B97D3/aug-cc-pVTZ
ABC
0.22718 0.20956 0.10901

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/aug-cc-pVTZ

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 1.198 0.663
N4 0.000 -1.198 0.663
N5 0.000 -1.198 -0.663
N6 0.000 1.198 -0.663
H7 0.000 0.000 2.352
H8 0.000 0.000 -2.352

Atom - Atom Distances (Å)
  C1 C2 N3 N4 N5 N6 H7 H8
C12.53031.34111.34112.27042.27041.08663.6169
C22.53032.27042.27041.34111.34113.61691.0866
N31.34112.27042.39682.73941.32652.07063.2445
N41.34112.27042.39681.32652.73942.07063.2445
N52.27041.34112.73941.32652.39683.24452.0706
N62.27041.34111.32652.73942.39683.24452.0706
H71.08663.61692.07062.07063.24453.24454.7036
H83.61691.08663.24453.24452.07062.07064.7036

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 116.668 C1 N4 N5 116.668
C2 N5 N4 116.668 C2 N6 N3 116.668
N3 C1 N4 126.664 N3 C1 H7 116.668
N4 C1 H7 116.668 N5 C2 N6 126.664
N5 C2 H8 116.668 N6 C2 H8 116.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.004      
2 C 0.004      
3 N -0.215      
4 N -0.215      
5 N -0.215      
6 N -0.215      
7 H 0.427      
8 H 0.427      


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 -32.718 0.000 0.000
y 0.000 -43.924 0.000
z 0.000 0.000 -28.291
Traceless
 xyz
x 3.389 0.000 0.000
y 0.000 -13.420 0.000
z 0.000 0.000 10.030
Polar
3z2-r220.061
x2-y211.206
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.852 0.000 0.000
y 0.000 8.423 0.000
z 0.000 0.000 9.366


<r2> (average value of r2) Å2
<r2> 104.646
(<r2>)1/2 10.230