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All results from a given calculation for C2H4N4 (2H-Tetrazole, 2-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-51.972356
Energy at 298.15K-51.980167
Nuclear repulsion energy123.249082
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 3469 3134 2.87      
2 A 3357 3032 6.93      
3 A 3325 3004 20.10      
4 A 3238 2926 34.77      
5 A 1676 1514 14.00      
6 A 1634 1476 12.44      
7 A 1611 1456 8.33      
8 A 1586 1433 1.36      
9 A 1572 1420 49.67      
10 A 1481 1338 8.93      
11 A 1443 1304 28.21      
12 A 1392 1258 32.92      
13 A 1255 1133 0.72      
14 A 1249 1128 10.96      
15 A 1161 1049 28.30      
16 A 1138 1028 29.41      
17 A 1117 1009 8.73      
18 A 1006 909 13.27      
19 A 784 709 7.63      
20 A 758 685 24.70      
21 A 746 674 8.50      
22 A 396 358 5.56      
23 A 247 223 5.60      
24 A 86 78 0.05      

Unscaled Zero Point Vibrational Energy (zpe) 17862.4 cm-1
Scaled (by 0.9034) Zero Point Vibrational Energy (zpe) 16136.9 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
0.33645 0.13242 0.09675

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.352 -1.144 0.000
C2 1.450 -0.568 0.000
N3 0.250 -1.090 -0.000
N4 1.418 0.777 0.000
N5 0.168 1.094 -0.000
N6 -0.508 -0.013 -0.000
H7 -2.307 -0.580 -0.884
H8 -2.318 0.962 -0.004
H9 -2.307 -0.573 0.888
C10 -1.965 -0.058 0.000

Atom - Atom Distances (Å)
  H1 C2 N3 N4 N5 N6 H7 H8 H9 C10
H11.07032.10292.13663.12753.07524.77565.12334.77734.4515
C21.07031.30911.34572.09932.03493.85974.06713.86083.4529
N32.10291.30912.20282.18601.31682.75293.28762.75582.4436
N42.13661.34572.20281.28962.08144.06173.74044.06043.4841
N53.12752.09932.18601.28961.29703.11562.48923.11332.4236
N63.07522.03491.31682.08141.29702.08312.05662.08341.4578
H74.77563.85972.75294.06173.11562.08311.77591.77161.0821
H85.12334.06713.28763.74042.48922.05661.77591.77581.0797
H94.77733.86082.75584.06043.11332.08341.77161.77581.0821
C104.45153.45292.44363.48412.42361.45781.08211.07971.0821

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 123.905 H1 C2 N4 123.953
C2 N3 N6 101.595 C2 N4 N5 105.596
N3 C2 N4 112.142 N3 N6 N5 113.506
N3 N6 C10 123.368 N4 N5 N6 107.161
N5 N6 C10 123.126 N6 C10 H7 109.307
N6 C10 H8 107.346 N6 C10 H9 109.326
H7 C10 H8 110.465 H7 C10 H9 109.888
H8 C10 H9 110.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.212      
2 C -0.225      
3 N -0.096      
4 N -0.105      
5 N -0.098      
6 N 0.105      
7 H 0.203      
8 H 0.218      
9 H 0.203      
10 C -0.418      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.576 -1.508 0.000 2.985
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.301 -4.421 0.001
y -4.421 -40.494 -0.000
z 0.001 -0.000 -34.538
Traceless
 xyz
x 9.215 -4.421 0.001
y -4.421 -9.074 -0.000
z 0.001 -0.000 -0.140
Polar
3z2-r2-0.281
x2-y212.193
xy-4.421
xz0.001
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.257 -0.011 -0.001
y -0.011 6.544 0.000
z -0.001 0.000 4.299


<r2> (average value of r2) Å2
<r2> 99.434
(<r2>)1/2 9.972