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: HF/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-295.897917
Energy at 298.15K-295.905807
Nuclear repulsion energy236.180208
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/6-311+G(3df,2p)
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 3435 3121 0.96      
2 A 3313 3010 2.54      
3 A 3278 2979 10.77      
4 A 3207 2914 27.65      
5 A 1682 1528 12.21      
6 A 1628 1479 13.32      
7 A 1602 1455 10.44      
8 A 1587 1442 10.67      
9 A 1575 1431 25.53      
10 A 1481 1346 11.35      
11 A 1455 1322 26.96      
12 A 1392 1265 27.58      
13 A 1258 1143 10.64      
14 A 1257 1142 0.25      
15 A 1164 1057 34.47      
16 A 1146 1041 20.99      
17 A 1128 1025 8.26      
18 A 1025 931 10.61      
19 A 802 728 4.36      
20 A 768 698 11.63      
21 A 767 697 22.08      
22 A 407 369 5.85      
23 A 256 232 5.07      
24 A 95 86 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 17852.4 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 16220.7 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/6-311+G(3df,2p)
ABC
0.34323 0.13454 0.09843

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311+G(3df,2p)

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.289 -1.171 0.000
C2 1.397 -0.586 0.000
N3 0.199 -1.087 -0.000
N4 1.377 0.748 -0.000
N5 0.141 1.074 0.000
N6 -0.540 -0.013 -0.000
H7 -2.335 -0.556 -0.881
H8 -2.329 0.980 -0.003
H9 -2.335 -0.551 0.884
C10 -1.985 -0.040 0.000

Atom - Atom Distances (Å)
  H1 C2 N3 N4 N5 N6 H7 H8 H9 C10
H11.06652.09222.12483.10693.05714.74735.09434.74844.4210
C21.06651.29941.33422.08162.02053.83524.04193.83573.4260
N32.09221.29942.18102.16141.30362.73433.26512.73642.4214
N42.12481.33422.18101.27842.06294.03193.71314.03113.4531
N53.10692.08162.16141.27841.28243.09232.47143.09032.3998
N63.05712.02051.30362.06291.28242.07172.04582.07181.4449
H74.74733.83522.73434.03193.09232.07171.76951.76481.0793
H85.09434.04193.26513.71312.47142.04581.76951.76951.0768
H94.74843.83572.73644.03113.09032.07181.76481.76951.0793
C104.42103.42602.42143.45312.39981.44491.07931.07681.0793

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 124.047 H1 C2 N4 124.142
C2 N3 N6 101.836 C2 N4 N5 105.621
N3 C2 N4 111.811 N3 N6 N5 113.401
N3 N6 C10 123.444 N4 N5 N6 107.329
N5 N6 C10 123.154 N6 C10 H7 109.468
N6 C10 H8 107.552 N6 C10 H9 109.477
H7 C10 H8 110.316 H7 C10 H9 109.683
H8 C10 H9 110.311
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.174      
2 C 0.948      
3 N -0.625      
4 N -0.760      
5 N -0.231      
6 N -0.129      
7 H 0.136      
8 H 0.143      
9 H 0.136      
10 C 0.208      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.523 -1.436 0.001 2.903
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.489 -4.326 0.002
y -4.326 -40.289 -0.001
z 0.002 -0.001 -34.738
Traceless
 xyz
x 9.024 -4.326 0.002
y -4.326 -8.675 -0.001
z 0.002 -0.001 -0.349
Polar
3z2-r2-0.697
x2-y211.800
xy-4.326
xz0.002
yz-0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.970 0.008 -0.000
y 0.008 7.085 -0.000
z -0.000 -0.000 5.035


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