return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for C2H4N4 (2H-Tetrazole, 2-methyl-)

using model chemistry: PBEPBEultrafine/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBEultrafine/6-31G*
 hartrees
Energy at 0K-297.244920
Energy at 298.15K-297.252377
Nuclear repulsion energy230.092116
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 PBEPBEultrafine/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3231 3178 0.85      
2 A 3134 3082 0.48      
3 A 3099 3047 5.34      
4 A 3021 2971 16.79      
5 A 1485 1461 6.52      
6 A 1456 1432 11.35      
7 A 1443 1419 10.67      
8 A 1413 1390 1.12      
9 A 1377 1354 7.70      
10 A 1282 1260 12.71      
11 A 1259 1238 9.59      
12 A 1207 1187 7.30      
13 A 1135 1116 10.18      
14 A 1119 1100 0.17      
15 A 1015 998 20.05      
16 A 996 979 17.30      
17 A 984 968 10.14      
18 A 843 829 10.87      
19 A 704 693 9.64      
20 A 700 688 4.48      
21 A 668 657 5.01      
22 A 362 356 4.77      
23 A 225 221 4.97      
24 A 90 88 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 16122.9 cm-1
Scaled (by 0.9835) Zero Point Vibrational Energy (zpe) 15856.8 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 PBEPBEultrafine/6-31G*
ABC
0.31997 0.12972 0.09398

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/6-31G*

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.316 -1.215 0.000
C2 1.414 -0.606 0.000
N3 0.181 -1.132 -0.000
N4 1.423 0.755 -0.000
N5 0.153 1.124 0.000
N6 -0.560 -0.017 -0.000
H7 -2.380 -0.551 -0.897
H8 -2.346 1.016 -0.003
H9 -2.380 -0.546 0.900
C10 -2.013 -0.031 0.000

Atom - Atom Distances (Å)
  H1 C2 N3 N4 N5 N6 H7 H8 H9 C10
H11.08822.13622.16253.18613.11494.82665.16774.82774.4875
C21.08821.34061.36022.14092.05973.89934.09463.89993.4748
N32.13621.34062.25852.25611.33812.77523.31592.77722.4546
N42.16251.36022.25851.32312.12784.12003.77824.11913.5246
N53.18612.14092.25611.32311.34573.16672.50123.16472.4544
N63.11492.05971.33812.12781.34572.09852.06332.09861.4531
H74.82663.89932.77524.12003.16672.09851.80421.79791.1005
H85.16774.09463.31593.77822.50122.06331.80421.80411.0979
H94.82773.89992.77724.11913.16472.09861.79791.80411.1005
C104.48753.47482.45463.52462.45441.45311.10051.09791.1005

picture of 2H-Tetrazole, 2-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 N3 122.833 H1 C2 N4 123.682
C2 N3 N6 100.512 C2 N4 N5 105.845
N3 C2 N4 113.485 N3 N6 N5 114.415
N3 N6 C10 123.083 N4 N5 N6 105.743
N5 N6 C10 122.502 N6 C10 H7 109.755
N6 C10 H8 107.137 N6 C10 H9 109.765
H7 C10 H8 110.309 H7 C10 H9 109.544
H8 C10 H9 110.300
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.183      
2 C 0.180      
3 N -0.263      
4 N -0.276      
5 N -0.057      
6 N -0.039      
7 H 0.209      
8 H 0.215      
9 H 0.209      
10 C -0.360      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.447 -1.417 0.000 2.827
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.230 -3.940 0.002
y -3.940 -39.271 -0.000
z 0.002 -0.000 -34.040
Traceless
 xyz
x 8.425 -3.940 0.002
y -3.940 -8.136 -0.000
z 0.002 -0.000 -0.290
Polar
3z2-r2-0.580
x2-y211.041
xy-3.940
xz0.002
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.837 -0.163 -0.001
y -0.163 6.600 -0.000
z -0.001 -0.000 3.766


<r2> (average value of r2) Å2
<r2> 125.138
(<r2>)1/2 11.186