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

using model chemistry: MP2/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/3-21G*
 hartrees
Energy at 0K-294.742032
Energy at 298.15K-294.749320
HF Energy-294.081317
Nuclear repulsion energy220.856134
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 MP2/3-21G*
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 3585 3410 100.55      
2 A 3197 3041 0.88      
3 A 3098 2947 7.46      
4 A 1593 1515 6.32      
5 A 1509 1435 9.60      
6 A 1491 1418 46.53      
7 A 1362 1295 29.91      
8 A 1297 1234 14.57      
9 A 1064 1012 0.77      
10 A 1029 979 1.38      
11 A 988 940 4.26      
12 A 946 900 7.09      
13 A 827 787 2.60      
14 A 774 736 25.36      
15 A 657 625 1.68      
16 A 333 317 3.27      
17 A 3161 3007 7.57      
18 A 1592 1515 11.57      
19 A 1139 1083 3.11      
20 A 696 662 22.85      
21 A 680 647 40.96      
22 A 628 598 69.97      
23 A 267 254 0.00      
24 A 124 118 0.33      

Unscaled Zero Point Vibrational Energy (zpe) 16017.1 cm-1
Scaled (by 0.9513) Zero Point Vibrational Energy (zpe) 15237.1 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 MP2/3-21G*
ABC
0.30041 0.11620 0.08515

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.190 -0.012 0.000
C2 0.000 0.616 0.000
C3 0.194 2.104 0.000
H4 0.740 2.431 0.892
H5 0.740 2.431 -0.892
H6 -0.795 2.567 0.000
N7 1.025 -0.298 0.000
N8 0.499 -1.618 0.000
N9 -0.888 -1.442 0.000
H10 2.030 -0.157 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6 N7 N8 N9 H10
N11.34562.52913.23883.23882.60902.23352.33021.46143.2234
C21.34561.50122.15372.15372.10661.37302.28852.24122.1720
C32.52911.50121.09501.09501.09192.54153.73453.70782.9122
H43.23882.15371.09501.78301.77982.88504.15314.29503.0260
H53.23882.15371.09501.78301.77982.88504.15314.29503.0260
H62.60902.10661.09191.77981.77983.39354.37984.00983.9237
N72.23351.37302.54152.88502.88503.39351.42122.22921.0149
N82.33022.28853.73454.15314.15314.37981.42121.39782.1167
N91.46142.24123.70784.29504.29504.00982.22921.39783.1887
H103.22342.17202.91223.02603.02603.92371.01492.11673.1887

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 125.258 N1 C2 N7 110.481
N1 N9 N8 109.153 C2 N1 N9 105.886
C2 C3 H4 111.139 C2 C3 H5 111.139
C2 C3 H6 107.613 C2 N7 N8 109.963
C2 N7 H10 130.305 C3 C2 N7 124.261
H4 C3 H5 109.005 H4 C3 H6 108.944
H5 C3 H6 108.944 N7 N8 N9 104.516
N8 N7 H10 119.731
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability