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 CH2N4 (1H-Tetrazole)

using model chemistry: PBEPBE/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at PBEPBE/3-21G*
 hartrees
Energy at 0K-256.520236
Energy at 298.15K-256.525570
HF Energy-256.520236
Nuclear repulsion energy160.309151
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 PBEPBE/3-21G*
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' 3485 3323 67.67      
2 A' 3246 3095 1.73      
3 A' 1371 1308 35.02      
4 A' 1314 1253 3.70      
5 A' 1164 1110 7.47      
6 A' 1108 1056 12.77      
7 A' 1017 970 0.54      
8 A' 970 925 6.78      
9 A' 934 891 7.68      
10 A' 803 765 13.29      
11 A' 731 697 9.19      
12 A" 866 826 21.95      
13 A" 659 628 11.06      
14 A" 651 621 44.90      
15 A" 596 569 91.99      

Unscaled Zero Point Vibrational Energy (zpe) 9457.2 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 9017.4 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 PBEPBE/3-21G*
ABC
0.32625 0.31661 0.16068

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 1.085 0.265 0.000
N2 0.000 1.094 0.000
N3 -1.186 0.293 0.000
N4 -0.747 -0.981 0.000
N5 0.712 -1.023 0.000
H6 2.111 0.613 0.000
H7 -0.068 2.114 0.000

Atom - Atom Distances (Å)
  C1 N2 N3 N4 N5 H6 H7
C11.36552.27182.21591.34171.08322.1790
N21.36551.43152.20522.23392.16501.0224
N32.27181.43151.34742.31013.31292.1370
N42.21592.20521.34741.45973.27273.1685
N51.34172.23392.31011.45972.15323.2330
H61.08322.16503.31293.27272.15322.6458
H72.17901.02242.13703.16853.23302.6458

picture of 1H-Tetrazole state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 108.611 C1 N2 H7 131.181
C1 N5 N4 104.481 N2 C1 N5 111.210
N2 C1 H6 123.889 N2 N3 N4 104.999
N3 N2 H7 120.207 N3 N4 N5 110.699
N5 C1 H6 124.901
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.290      
2 N -0.501      
3 N -0.035      
4 N -0.078      
5 N -0.315      
6 H 0.275      
7 H 0.364      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.355 4.793 0.000 5.341
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.947 1.937 0.000
y 1.937 -26.186 0.000
z 0.000 0.000 -28.663
Traceless
 xyz
x -1.523 1.937 0.000
y 1.937 2.619 0.000
z 0.000 0.000 -1.096
Polar
3z2-r2-2.192
x2-y2-2.761
xy1.937
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.420 0.192 0.000
y 0.192 5.378 0.000
z 0.000 0.000 1.706


<r2> (average value of r2) Å2
<r2> 74.593
(<r2>)1/2 8.637