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All results from a given calculation for C2H4N4 (1H-Tetrazole, 5-methyl-)

using model chemistry: HF/CEP-121G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at HF/CEP-121G*
 hartrees
Energy at 0K-51.976727
Energy at 298.15K-51.984374
Nuclear repulsion energy121.482072
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 HF/CEP-121G*
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 3912 3534 105.49      
2 A 3324 3003 8.01      
3 A 3209 2899 21.99      
4 A 1760 1590 59.76      
5 A 1630 1473 0.30      
6 A 1592 1438 19.31      
7 A 1557 1406 28.93      
8 A 1544 1395 14.02      
9 A 1447 1307 15.12      
10 A 1230 1111 25.24      
11 A 1195 1079 4.17      
12 A 1175 1061 21.67      
13 A 1112 1005 0.94      
14 A 1078 974 4.43      
15 A 720 651 5.62      
16 A 357 323 4.43      
17 A 3275 2959 22.49      
18 A 1615 1459 9.00      
19 A 1168 1056 0.30      
20 A 798 721 5.60      
21 A 762 688 12.75      
22 A 596 539 102.67      
23 A 293 265 0.00      
24 A 82 74 0.68      

Unscaled Zero Point Vibrational Energy (zpe) 17715.4 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 16004.0 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 HF/CEP-121G*
ABC
0.33705 0.12292 0.09161

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.155 -0.048 0.000
C2 0.000 0.548 0.000
C3 0.249 2.029 0.000
H4 0.809 2.324 0.882
H5 0.809 2.324 -0.882
H6 -0.705 2.538 0.000
N7 0.944 -0.406 0.000
N8 0.339 -1.601 0.000
N9 -0.898 -1.374 0.000
H10 1.938 -0.343 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6 N7 N8 N9 H10
N11.29942.50663.20343.20342.62462.12872.15491.35093.1062
C21.29941.50172.14212.14212.11121.34162.17542.12132.1323
C32.50661.50171.08551.08551.08132.53183.63083.59092.9110
H43.20342.14211.08551.76341.76482.87244.05064.16773.0273
H53.20342.14211.08551.76341.76482.87244.05064.16773.0273
H62.62462.11121.08131.76481.76483.37394.26843.91673.9088
N72.12871.34162.53182.87242.87243.37391.33922.08030.9959
N82.15492.17543.63084.05064.05064.26841.33921.25752.0342
N91.35092.12133.59094.16774.16773.91672.08031.25753.0170
H103.10622.13232.91103.02733.02733.90880.99592.03423.0170

picture of 1H-Tetrazole, 5-methyl- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 126.836 N1 C2 N7 107.405
N1 N9 N8 111.361 C2 N1 N9 106.319
C2 C3 H4 110.749 C2 C3 H5 110.749
C2 C3 H6 108.541 C2 N7 N8 108.477
C2 N7 H10 131.050 C3 C2 N7 125.759
H4 C3 H5 108.630 H4 C3 H6 109.069
H5 C3 H6 109.069 N7 N8 N9 106.437
N8 N7 H10 120.473
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.101      
2 C 0.090      
3 C -0.631      
4 H 0.190      
5 H 0.190      
6 H 0.225      
7 N -0.248      
8 N -0.065      
9 N -0.066      
10 H 0.415      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.605 3.981 0.000 6.087
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -34.585 -0.747 0.000
y -0.747 -37.212 0.000
z 0.000 0.000 -34.692
Traceless
 xyz
x 1.366 -0.747 0.000
y -0.747 -2.573 0.000
z 0.000 0.000 1.206
Polar
3z2-r22.413
x2-y22.626
xy-0.747
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.848 0.262 0.000
y 0.262 7.646 0.000
z 0.000 0.000 4.315


<r2> (average value of r2) Å2
<r2> 103.376
(<r2>)1/2 10.167