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: LSDA/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at LSDA/STO-3G
 hartrees
Energy at 0K-292.154809
Energy at 298.15K-292.161716
Nuclear repulsion energy221.826922
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 LSDA/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 A 3481 3117 34.65      
2 A 3471 3108 10.39      
3 A 3446 3086 4.59      
4 A 3285 2941 1.65      
5 A 1590 1424 15.30      
6 A 1570 1406 15.51      
7 A 1486 1330 0.93      
8 A 1443 1292 2.44      
9 A 1407 1260 11.78      
10 A 1288 1154 3.50      
11 A 1262 1131 14.16      
12 A 1175 1052 5.27      
13 A 1144 1024 0.45      
14 A 1109 993 5.23      
15 A 986 883 0.08      
16 A 977 874 28.08      
17 A 950 850 2.82      
18 A 841 754 10.64      
19 A 687 615 5.11      
20 A 660 591 2.93      
21 A 581 521 0.50      
22 A 313 280 2.58      
23 A 193 173 4.82      
24 A 85 76 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 16714.2 cm-1
Scaled (by 0.8955) Zero Point Vibrational Energy (zpe) 14967.6 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 LSDA/STO-3G
ABC
0.29064 0.12228 0.08755

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.342 -1.262 0.000
C2 1.437 -0.638 0.000
N3 0.175 -1.196 -0.000
N4 1.490 0.767 -0.000
N5 0.173 1.196 0.000
N6 -0.589 -0.015 -0.000
H7 -2.443 -0.540 -0.904
H8 -2.392 1.035 -0.003
H9 -2.443 -0.534 0.907
C10 -2.072 -0.022 0.000

Atom - Atom Distances (Å)
  H1 C2 N3 N4 N5 N6 H7 H8 H9 C10
H11.09902.16772.20073.27793.18514.92295.26174.92444.5844
C21.09901.37991.40612.22742.11973.98554.17873.98643.5625
N32.16771.37992.36282.39211.40712.84663.40122.84902.5352
N42.20071.40612.36281.38482.22074.24213.89124.24113.6479
N53.27792.22742.39211.38481.43033.26752.57033.26542.5539
N63.18512.11971.40712.22071.43032.12882.08642.12901.4829
H74.92293.98552.84664.24213.26752.12881.81501.81081.1061
H85.26174.17873.40123.89122.57032.08641.81501.81491.1042
H94.92443.98642.84904.24113.26542.12901.81081.81491.1062
C104.58443.56252.53523.64792.55391.48291.10611.10421.1062

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 121.551 H1 C2 N4 122.443
C2 N3 N6 99.027 C2 N4 N5 105.891
N3 C2 N4 116.006 N3 N6 N5 114.928
N3 N6 C10 122.600 N4 N5 N6 104.149
N5 N6 C10 122.473 N6 C10 H7 109.767
N6 C10 H8 106.587 N6 C10 H9 109.778
H7 C10 H8 110.395 H7 C10 H9 109.873
H8 C10 H9 110.387
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.134      
2 C 0.003      
3 N -0.132      
4 N -0.145      
5 N -0.054      
6 N -0.033      
7 H 0.137      
8 H 0.144      
9 H 0.137      
10 C -0.192      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.495 -1.225 0.000 2.780
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.042 -3.545 0.001
y -3.545 -36.812 0.000
z 0.001 0.000 -31.526
Traceless
 xyz
x 7.127 -3.545 0.001
y -3.545 -7.528 0.000
z 0.001 0.000 0.402
Polar
3z2-r20.803
x2-y29.770
xy-3.545
xz0.001
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.931 -0.249 -0.000
y -0.249 3.977 0.000
z -0.000 0.000 1.690


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000