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

using model chemistry: MP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A'
Energy calculated at MP2/6-31G**
 hartrees
Energy at 0K-296.744575
Energy at 298.15K-296.751997
HF Energy-295.799503
Nuclear repulsion energy227.817391
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 MP2/6-31G**
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 3720 3484 96.04      
2 A 3263 3056 0.90      
3 A 3140 2941 10.22      
4 A 1605 1503 37.75      
5 A 1560 1461 0.34      
6 A 1471 1378 20.05      
7 A 1461 1369 4.90      
8 A 1358 1272 8.39      
9 A 1197 1121 6.60      
10 A 1147 1074 1.41      
11 A 1120 1049 20.77      
12 A 1076 1007 15.34      
13 A 1025 960 0.52      
14 A 1015 950 1.55      
15 A 693 649 3.82      
16 A 337 316 4.46      
17 A 3226 3021 6.94      
18 A 1541 1443 9.20      
19 A 1096 1026 0.76      
20 A 733 687 19.24      
21 A 703 658 27.73      
22 A 608 569 51.73      
23 A 262 246 0.22      
24 A 76 71 0.74      

Unscaled Zero Point Vibrational Energy (zpe) 16716.4 cm-1
Scaled (by 0.9365) Zero Point Vibrational Energy (zpe) 15654.9 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 MP2/6-31G**
ABC
0.32309 0.12156 0.08981

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.152 -0.061 0.000
C2 0.000 0.603 0.000
C3 0.180 2.080 0.000
H4 0.722 2.412 0.884
H5 0.722 2.412 -0.884
H6 -0.804 2.540 0.000
N7 0.991 -0.317 0.000
N8 0.471 -1.560 0.000
N9 -0.840 -1.386 0.000
H10 1.992 -0.194 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6 N7 N8 N9 H10
N11.32942.52063.22593.22592.62362.15792.20971.36163.1469
C21.32941.48742.13892.13892.09691.35202.21402.15952.1458
C32.52061.48741.08911.08911.08602.52993.65153.61282.9078
H43.22592.13891.08911.76841.76812.88104.07714.20103.0310
H53.22592.13891.08911.76841.76812.88104.07714.20103.0310
H62.62362.09691.08601.76811.76813.37364.29373.92613.9106
N72.15791.35202.52992.88102.88103.37361.34772.12071.0089
N82.20972.21403.65154.07714.07714.29371.34771.32312.0446
N91.36162.15953.61284.20104.20103.92612.12071.32313.0733
H103.14692.14582.90783.03103.03103.91061.00892.04463.0733

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 126.892 N1 C2 N7 107.175
N1 N9 N8 110.779 C2 N1 N9 106.734
C2 C3 H4 111.287 C2 C3 H5 111.287
C2 C3 H6 108.134 C2 N7 N8 110.188
C2 N7 H10 130.144 C3 C2 N7 125.933
H4 C3 H5 108.550 H4 C3 H6 108.760
H5 C3 H6 108.760 N7 N8 N9 105.123
N8 N7 H10 119.668
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability