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All results from a given calculation for C2H4N4 (2H-Tetrazole, 2-methyl-)

using model chemistry: HF/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 HF/3-21G
 hartrees
Energy at 0K-294.089037
Energy at 298.15K-294.096721
Nuclear repulsion energy230.682377
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/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 3524 3191 0.10      
2 A 3344 3028 0.97      
3 A 3317 3003 8.89      
4 A 3243 2937 14.96      
5 A 1673 1515 13.29      
6 A 1654 1498 13.05      
7 A 1611 1459 2.30      
8 A 1555 1408 2.46      
9 A 1481 1341 62.47      
10 A 1375 1246 4.62      
11 A 1362 1233 5.16      
12 A 1270 1150 0.01      
13 A 1252 1134 8.28      
14 A 1180 1069 17.63      
15 A 1117 1012 3.78      
16 A 1053 954 18.12      
17 A 1029 932 7.64      
18 A 990 897 83.11      
19 A 785 711 14.84      
20 A 734 664 0.78      
21 A 717 649 15.78      
22 A 363 329 6.44      
23 A 247 223 11.13      
24 A 74 67 0.03      

Unscaled Zero Point Vibrational Energy (zpe) 17474.7 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 15825.1 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 HF/3-21G
ABC
0.32418 0.12901 0.09390

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
H1 2.310 -1.187 0.000
C2 1.422 -0.610 0.000
N3 0.211 -1.115 0.000
N4 1.411 0.755 0.000
N5 0.152 1.122 -0.000
N6 -0.570 -0.011 -0.000
H7 -2.371 -0.562 -0.882
H8 -2.368 0.976 -0.003
H9 -2.371 -0.556 0.886
C10 -2.027 -0.045 0.000

Atom - Atom Distances (Å)
  H1 C2 N3 N4 N5 N6 H7 H8 H9 C10
H11.05892.10052.13953.16003.11134.80395.15384.80544.4842
C21.05891.31231.36482.14742.08063.89424.10843.89523.4943
N32.10051.31232.22202.23761.35252.78343.31992.78592.4797
N42.13951.36482.22201.31142.12454.10083.78584.09973.5298
N53.16002.14742.23761.31141.34373.15912.52453.15702.4719
N63.11132.08061.35252.12451.34372.07922.05062.07941.4565
H74.80393.89422.78344.10083.15912.07921.77171.76861.0789
H85.15384.10843.31993.78582.52452.05061.77171.77171.0772
H94.80543.89522.78594.09973.15702.07941.76861.77171.0790
C104.48423.49432.47973.52982.47191.45651.07891.07721.0790

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 124.366 H1 C2 N4 123.449
C2 N3 N6 102.648 C2 N4 N5 106.702
N3 C2 N4 112.185 N3 N6 N5 112.179
N3 N6 C10 123.911 N4 N5 N6 106.285
N5 N6 C10 123.909 N6 C10 H7 109.276
N6 C10 H8 107.112 N6 C10 H9 109.290
H7 C10 H8 110.508 H7 C10 H9 110.088
H8 C10 H9 110.504
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 H 0.299 0.034   0.038
2 C 0.298 0.570   0.624
3 N -0.315 -0.664   -0.681
4 N -0.371 -0.431   -0.460
5 N 0.004 -0.250   -0.242
6 N -0.383 0.688   0.669
7 H 0.256 0.144   0.197
8 H 0.262 0.106   0.160
9 H 0.256 0.144   0.196
10 C -0.306 -0.340   -0.503


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.587 -1.615 -0.000 3.050
CHELPG -2.429 -1.413 0.000 2.810
AIM        
ESP -2.528 -1.601 -0.000 2.992


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.968 -4.728 0.001
y -4.728 -41.091 -0.000
z 0.001 -0.000 -35.104
Traceless
 xyz
x 10.130 -4.728 0.001
y -4.728 -9.555 -0.000
z 0.001 -0.000 -0.575
Polar
3z2-r2-1.149
x2-y213.123
xy-4.728
xz0.001
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.463 -0.158 -0.000
y -0.158 5.472 0.000
z -0.000 0.000 2.955


<r2> (average value of r2) Å2
<r2> 125.633
(<r2>)1/2 11.209