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: B1B95/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B1B95/6-31G**
 hartrees
Energy at 0K-297.472034
Energy at 298.15K-297.479652
Nuclear repulsion energy232.871206
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 B1B95/6-31G**
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 3315 3165 0.44      
2 A 3217 3072 0.36      
3 A 3185 3041 4.83      
4 A 3098 2958 16.19      
5 A 1540 1470 6.11      
6 A 1503 1435 12.69      
7 A 1485 1418 11.12      
8 A 1453 1387 6.45      
9 A 1443 1378 4.77      
10 A 1346 1285 19.73      
11 A 1339 1278 8.26      
12 A 1285 1227 12.92      
13 A 1183 1129 10.29      
14 A 1148 1096 0.09      
15 A 1066 1018 28.39      
16 A 1051 1004 9.96      
17 A 1028 982 5.77      
18 A 895 855 10.21      
19 A 731 698 13.46      
20 A 728 695 4.60      
21 A 698 667 6.34      
22 A 372 355 5.03      
23 A 237 226 5.26      
24 A 93 89 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 16719.4 cm-1
Scaled (by 0.9548) Zero Point Vibrational Energy (zpe) 15963.7 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 B1B95/6-31G**
ABC
0.32930 0.13236 0.09613

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.301 -1.194 0.000
C2 1.405 -0.595 0.000
N3 0.186 -1.114 -0.000
N4 1.402 0.751 -0.000
N5 0.146 1.105 0.000
N6 -0.551 -0.018 -0.000
H7 -2.357 -0.549 -0.889
H8 -2.327 1.002 -0.003
H9 -2.357 -0.544 0.892
C10 -1.995 -0.034 0.000

Atom - Atom Distances (Å)
  H1 C2 N3 N4 N5 N6 H7 H8 H9 C10
H11.07782.11632.14253.15083.08464.78525.12204.78644.4494
C21.07781.32451.34622.11522.03883.86524.05863.86583.4453
N32.11631.32452.22662.21931.32092.75223.28502.75432.4337
N42.14251.34622.22661.30502.09874.07523.73714.07433.4860
N53.15082.11522.21931.30501.32133.12862.47473.12662.4243
N63.08462.03881.32092.09871.32132.08162.04782.08171.4439
H74.78523.86522.75224.07523.12862.08161.78631.78101.0896
H85.12204.05863.28503.73712.47472.04781.78631.78631.0872
H94.78643.86582.75434.07433.12662.08171.78101.78631.0896
C104.44943.44532.43373.48602.42431.44391.08961.08721.0896

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 123.185 H1 C2 N4 123.854
C2 N3 N6 100.834 C2 N4 N5 105.839
N3 C2 N4 112.961 N3 N6 N5 114.272
N3 N6 C10 123.289 N4 N5 N6 106.093
N5 N6 C10 122.439 N6 C10 H7 109.708
N6 C10 H8 107.168 N6 C10 H9 109.719
H7 C10 H8 110.297 H7 C10 H9 109.625
H8 C10 H9 110.289
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.155      
2 C 0.252      
3 N -0.281      
4 N -0.305      
5 N -0.046      
6 N -0.089      
7 H 0.171      
8 H 0.176      
9 H 0.171      
10 C -0.204      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.487 -1.442 0.000 2.874
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.968 -3.994 0.002
y -3.994 -39.221 -0.000
z 0.002 -0.000 -33.875
Traceless
 xyz
x 8.580 -3.994 0.002
y -3.994 -8.299 -0.000
z 0.002 -0.000 -0.280
Polar
3z2-r2-0.560
x2-y211.253
xy-3.994
xz0.002
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.453 -0.151 -0.001
y -0.151 6.393 0.000
z -0.001 0.000 3.735


<r2> (average value of r2) Å2
<r2> 122.764
(<r2>)1/2 11.080