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

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D2H 1Ag
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-292.398555
Energy at 298.15K-292.402550
Nuclear repulsion energy198.669562
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 BLYP/STO-3G
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 3303 3056 0.00      
2 Ag 1229 1137 0.00      
3 Ag 892 825 0.00      
4 Ag 666 616 0.00      
5 Au 199 184 0.00      
6 B1u 3301 3054 12.91      
7 B1u 1069 989 44.94      
8 B1u 1003 928 4.46      
9 B2g 912 844 0.00      
10 B2g 726 671 0.00      
11 B2u 1401 1296 38.53      
12 B2u 1014 938 4.74      
13 B2u 653 604 7.63      
14 B3g 1407 1302 0.00      
15 B3g 1213 1122 0.00      
16 B3g 586 542 0.00      
17 B3u 837 775 1.97      
18 B3u 82 76 26.24      

Unscaled Zero Point Vibrational Energy (zpe) 10245.7 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 9479.4 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 BLYP/STO-3G
ABC
0.20388 0.17965 0.09550

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is D2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.311
C2 0.000 0.000 -1.311
N3 0.000 1.294 0.727
N4 0.000 -1.294 0.727
N5 0.000 -1.294 -0.727
N6 0.000 1.294 -0.727
H7 0.000 0.000 2.426
H8 0.000 0.000 -2.426

Atom - Atom Distances (Å)
  C1 C2 N3 N4 N5 N6 H7 H8
C12.62191.42011.42012.41392.41391.11523.7371
C22.62192.41392.41391.42011.42013.73711.1152
N31.42012.41392.58862.96871.45332.13633.4081
N41.42012.41392.58861.45332.96872.13633.4081
N52.41391.42012.96871.45332.58863.40812.1363
N62.41391.42011.45332.96872.58863.40812.1363
H71.11523.73712.13632.13633.40813.40814.8523
H83.73711.11523.40813.40812.13632.13634.8523

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 114.296 C1 N4 N5 114.296
C2 N5 N4 114.296 C2 N6 N3 114.296
N3 C1 N4 131.408 N3 C1 H7 114.296
N4 C1 H7 114.296 N5 C2 N6 131.408
N5 C2 H8 114.296 N6 C2 H8 114.296
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.059      
2 C 0.059      
3 N -0.090      
4 N -0.090      
5 N -0.090      
6 N -0.090      
7 H 0.120      
8 H 0.120      


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 -30.103 0.000 0.000
y 0.000 -40.914 0.000
z 0.000 0.000 -27.544
Traceless
 xyz
x 4.127 0.000 0.000
y 0.000 -12.091 0.000
z 0.000 0.000 7.964
Polar
3z2-r215.928
x2-y210.812
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.418 0.000 0.000
y 0.000 4.583 0.000
z 0.000 0.000 6.190


<r2> (average value of r2) Å2
<r2> 114.607
(<r2>)1/2 10.705