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**

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**
 hartrees
Energy at 0K-297.579923
Energy at 298.15K-297.587494
Nuclear repulsion energy231.487128
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**
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 3297 3168 0.50      
2 A 3192 3067 0.82      
3 A 3157 3033 6.69      
4 A 3080 2959 18.50      
5 A 1524 1464 5.20      
6 A 1493 1434 12.01      
7 A 1491 1433 10.19      
8 A 1456 1399 0.68      
9 A 1418 1362 14.87      
10 A 1324 1272 13.83      
11 A 1310 1259 9.55      
12 A 1250 1201 11.31      
13 A 1167 1121 10.66      
14 A 1152 1107 0.04      
15 A 1047 1006 29.79      
16 A 1039 999 17.20      
17 A 1025 985 3.22      
18 A 890 855 9.24      
19 A 722 694 5.34      
20 A 717 689 13.35      
21 A 689 662 5.77      
22 A 372 358 5.17      
23 A 230 221 5.02      
24 A 87 84 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 16564.7 cm-1
Scaled (by 0.9608) Zero Point Vibrational Energy (zpe) 15915.4 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 B3LYP/6-31G**
ABC
0.32567 0.13064 0.09492

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.309 -1.201 -0.000
C2 1.412 -0.601 0.000
N3 0.188 -1.120 0.000
N4 1.412 0.753 -0.000
N5 0.149 1.113 0.000
N6 -0.556 -0.017 -0.000
H7 -2.370 -0.552 -0.890
H8 -2.344 1.002 -0.003
H9 -2.370 -0.546 0.893
C10 -2.008 -0.034 -0.000

Atom - Atom Distances (Å)
  H1 C2 N3 N4 N5 N6 H7 H8 H9 C10
H11.07912.12282.15003.16523.10034.80735.14824.80884.4724
C21.07911.33001.35362.12872.05323.88634.08393.88723.4674
N32.12281.33002.23732.23291.33042.76753.30332.76972.4500
N42.15001.35362.23731.31302.11324.09883.76414.09793.5097
N53.16522.12872.23291.31301.33163.14842.49563.14622.4435
N63.10032.05321.33042.11321.33162.09042.05772.09061.4524
H74.80733.88632.76754.09883.14842.09041.78951.78371.0917
H85.14824.08393.30333.76412.49562.05771.78951.78941.0890
H94.80883.88722.76974.09793.14622.09061.78371.78941.0917
C104.47243.46742.45003.50972.44351.45241.09171.08901.0917

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 123.225 H1 C2 N4 123.818
C2 N3 N6 101.025 C2 N4 N5 105.923
N3 C2 N4 112.957 N3 N6 N5 114.020
N3 N6 C10 123.317 N4 N5 N6 106.076
N5 N6 C10 122.663 N6 C10 H7 109.694
N6 C10 H8 107.264 N6 C10 H9 109.707
H7 C10 H8 110.297 H7 C10 H9 109.560
H8 C10 H9 110.288
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.135      
2 C 0.266      
3 N -0.288      
4 N -0.296      
5 N -0.062      
6 N -0.059      
7 H 0.156      
8 H 0.161      
9 H 0.156      
10 C -0.169      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.469 -1.445 -0.000 2.861
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.170 -4.019 0.001
y -4.019 -39.461 0.000
z 0.001 0.000 -33.982
Traceless
 xyz
x 8.552 -4.019 0.001
y -4.019 -8.385 0.000
z 0.001 0.000 -0.167
Polar
3z2-r2-0.333
x2-y211.292
xy-4.019
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.551 -0.165 0.000
y -0.165 6.420 0.001
z 0.000 0.001 3.734


<r2> (average value of r2) Å2
<r2> 124.138
(<r2>)1/2 11.142