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 (1H-Tetrazole, 1-methyl-)

using model chemistry: mPW1PW91/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at mPW1PW91/6-31G
 hartrees
Energy at 0K-297.360452
Energy at 298.15K-297.367936
Nuclear repulsion energy228.350314
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 mPW1PW91/6-31G
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 3382 3202 3.94      
2 A 3231 3059 0.10      
3 A 3196 3025 8.71      
4 A 3107 2941 18.80      
5 A 1553 1470 19.66      
6 A 1542 1460 18.78      
7 A 1537 1455 28.50      
8 A 1476 1397 9.03      
9 A 1439 1362 1.96      
10 A 1297 1228 2.22      
11 A 1234 1169 6.83      
12 A 1198 1134 22.27      
13 A 1185 1121 0.01      
14 A 1114 1055 14.68      
15 A 1065 1008 0.57      
16 A 976 924 31.11      
17 A 916 867 8.36      
18 A 889 842 17.79      
19 A 724 686 1.10      
20 A 698 660 4.40      
21 A 683 647 13.75      
22 A 366 347 2.60      
23 A 250 237 0.30      
24 A 55 52 0.53      

Unscaled Zero Point Vibrational Energy (zpe) 16555.6 cm-1
Scaled (by 0.9466) Zero Point Vibrational Energy (zpe) 15671.5 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 mPW1PW91/6-31G
ABC
0.31783 0.12553 0.09156

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.269 1.087 -0.000
N2 -0.579 0.033 -0.000
N3 0.169 -1.123 -0.000
N4 1.424 -0.748 0.000
N5 1.521 0.638 0.000
H6 -0.029 2.118 0.000
C7 -2.027 -0.018 0.000
H8 -2.426 0.466 -0.892
H9 -2.311 -1.068 -0.001
H10 -2.426 0.464 0.893

Atom - Atom Distances (Å)
  C1 N2 N3 N4 N5 H6 C7 H8 H9 H10
C11.35262.21192.16841.33021.07312.54762.90543.36162.9062
N21.35261.37682.15052.18542.15631.44832.09582.05242.0958
N32.21191.37681.31052.21993.24672.45753.17032.48023.1694
N42.16842.15051.31051.38893.21313.52734.13433.74914.1339
N51.33022.18542.21991.38892.14283.60774.04984.19454.0501
H61.07312.15633.24673.21312.14282.92513.04483.91953.0464
C72.54761.44832.45753.52733.60772.92511.09071.08791.0907
H82.90542.09583.17034.13434.04983.04481.09071.77791.7853
H93.36162.05242.48023.74914.19453.91951.08791.77791.7779
H102.90622.09583.16944.13394.05013.04641.09071.78531.7779

picture of 1H-Tetrazole, 1-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 108.268 C1 N2 C7 130.866
C1 N5 N4 105.752 N2 C1 N5 109.094
N2 C1 H6 125.089 N2 N3 N4 106.281
N2 C7 H8 110.479 N2 C7 H9 107.190
N2 C7 H10 110.481 N3 N2 C7 120.866
N3 N4 N5 110.605 N5 C1 H6 125.817
H8 C7 H9 109.392 H8 C7 H10 109.858
H9 C7 H10 109.392
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.320      
2 N -0.544      
3 N 0.019      
4 N -0.094      
5 N -0.313      
6 H 0.248      
7 C -0.298      
8 H 0.213      
9 H 0.235      
10 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -5.878 2.715 -0.000 6.475
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.082 -0.384 0.000
y -0.384 -35.663 0.000
z 0.000 0.000 -34.552
Traceless
 xyz
x -1.974 -0.384 0.000
y -0.384 0.154 0.000
z 0.000 0.000 1.820
Polar
3z2-r23.641
x2-y2-1.419
xy-0.384
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.807 -0.174 -0.000
y -0.174 6.696 0.000
z -0.000 0.000 3.492


<r2> (average value of r2) Å2
<r2> 127.803
(<r2>)1/2 11.305