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: B3LYP/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B3LYP/6-31G(2df,p)
 hartrees
Energy at 0K-297.591724
Energy at 298.15K-297.599319
Nuclear repulsion energy231.948093
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 B3LYP/6-31G(2df,p)
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 3288 3173 0.35      
2 A 3180 3068 0.64      
3 A 3142 3032 5.93      
4 A 3068 2961 17.85      
5 A 1514 1461 4.82      
6 A 1483 1431 11.11      
7 A 1477 1426 9.03      
8 A 1450 1399 0.85      
9 A 1417 1368 12.74      
10 A 1320 1274 14.42      
11 A 1305 1259 8.27      
12 A 1247 1203 10.11      
13 A 1163 1123 10.30      
14 A 1152 1112 0.04      
15 A 1049 1012 33.34      
16 A 1038 1001 14.54      
17 A 1026 990 3.47      
18 A 903 871 7.54      
19 A 728 702 4.26      
20 A 718 693 12.81      
21 A 697 672 7.81      
22 A 371 358 4.97      
23 A 232 224 4.08      
24 A 90 87 0.04      

Unscaled Zero Point Vibrational Energy (zpe) 16528.6 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 15950.1 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 B3LYP/6-31G(2df,p)
ABC
0.32741 0.13106 0.09529

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G(2df,p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.307 -1.199 0.000
C2 1.411 -0.599 0.000
N3 0.188 -1.116 -0.000
N4 1.409 0.752 -0.000
N5 0.148 1.109 0.000
N6 -0.555 -0.017 -0.000
H7 -2.368 -0.552 -0.890
H8 -2.341 1.002 -0.003
H9 -2.368 -0.548 0.893
C10 -2.005 -0.034 0.000

Atom - Atom Distances (Å)
  H1 C2 N3 N4 N5 N6 H7 H8 H9 C10
H11.07782.11992.14753.16003.09604.80205.14184.80304.4657
C21.07781.32771.35102.12442.05053.88254.07893.88313.4621
N32.11991.32772.23152.22561.32672.76453.29852.76642.4452
N42.14751.35102.23151.31032.10934.09333.75774.09243.5028
N53.16002.12442.22561.31031.32793.14342.49103.14172.4375
N63.09602.05051.32672.10931.32792.08882.05582.08891.4496
H74.80203.88252.76454.09333.14342.08881.78961.78251.0918
H85.14184.07893.29853.75772.49102.05581.78961.78951.0891
H94.80303.88312.76644.09243.14172.08891.78251.78951.0918
C104.46573.46212.44523.50282.43751.44961.09181.08911.0918

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 123.261 H1 C2 N4 123.916
C2 N3 N6 101.159 C2 N4 N5 105.913
N3 C2 N4 112.823 N3 N6 N5 113.944
N3 N6 C10 123.409 N4 N5 N6 106.162
N5 N6 C10 122.648 N6 C10 H7 109.752
N6 C10 H8 107.300 N6 C10 H9 109.764
H7 C10 H8 110.287 H7 C10 H9 109.432
H8 C10 H9 110.280
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.148      
2 C 0.082      
3 N -0.252      
4 N -0.206      
5 N -0.122      
6 N 0.165      
7 H 0.164      
8 H 0.174      
9 H 0.164      
10 C -0.318      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.407 -1.413 0.000 2.791
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.214 -3.908 0.001
y -3.908 -39.264 -0.001
z 0.001 -0.001 -33.765
Traceless
 xyz
x 8.301 -3.908 0.001
y -3.908 -8.274 -0.001
z 0.001 -0.001 -0.027
Polar
3z2-r2-0.053
x2-y211.050
xy-3.908
xz0.001
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.823 -0.166 -0.003
y -0.166 6.621 0.002
z -0.003 0.002 4.117


<r2> (average value of r2) Å2
<r2> 123.685
(<r2>)1/2 11.121