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

using model chemistry: MP2/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-297.044298
Energy at 298.15K-297.051705
HF Energy-295.910048
Nuclear repulsion energy228.899112
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/Def2TZVPP
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' 3668 3490 99.23      
2 A' 3206 3051 0.33      
3 A' 3093 2943 9.25      
4 A' 1582 1505 38.57      
5 A' 1521 1447 0.10      
6 A' 1438 1368 25.77      
7 A' 1424 1355 2.21      
8 A' 1337 1272 6.85      
9 A' 1189 1131 7.09      
10 A' 1137 1081 1.28      
11 A' 1108 1054 17.84      
12 A' 1070 1018 19.06      
13 A' 1013 964 0.50      
14 A' 998 950 0.74      
15 A' 689 656 3.21      
16 A' 333 317 4.43      
17 A" 3171 3018 4.04      
18 A" 1501 1428 9.07      
19 A" 1076 1023 0.66      
20 A" 738 702 11.20      
21 A" 708 673 22.26      
22 A" 622 592 48.01      
23 A" 266 253 0.13      
24 A" 64 61 0.70      

Unscaled Zero Point Vibrational Energy (zpe) 16474.8 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 15675.7 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 MP2/Def2TZVPP
ABC
0.32603 0.12268 0.09065

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.148 -0.058 0.000
C2 0.000 0.599 0.000
C3 0.180 2.070 0.000
H4 0.723 2.400 0.883
H5 0.723 2.400 -0.883
H6 -0.801 2.534 0.000
N7 0.988 -0.316 0.000
N8 0.464 -1.553 0.000
N9 -0.834 -1.380 0.000
H10 1.988 -0.199 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6 N7 N8 N9 H10
N11.32262.50883.21343.21342.61492.15162.19851.35883.1393
C21.32261.48272.13292.13292.09461.34662.20132.14722.1421
C32.50881.48271.08811.08811.08532.51993.63483.59632.9018
H43.21342.13291.08811.76621.76712.86894.05944.18283.0228
H53.21342.13291.08811.76621.76712.86894.05944.18283.0228
H62.61492.09461.08531.76711.76713.36544.27843.91403.9052
N72.15161.34662.51992.86892.86893.36541.34342.10961.0068
N82.19852.20133.63484.05944.05944.27841.34341.30902.0389
N91.35882.14723.59634.18284.18283.91402.10961.30903.0589
H103.13932.14212.90183.02283.02283.90521.00682.03893.0589

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 126.740 N1 C2 N7 107.426
N1 N9 N8 110.977 C2 N1 N9 106.398
C2 C3 H4 111.199 C2 C3 H5 111.199
C2 C3 H6 108.306 C2 N7 N8 109.831
C2 N7 H10 130.515 C3 C2 N7 125.834
H4 C3 H5 108.503 H4 C3 H6 108.788
H5 C3 H6 108.788 N7 N8 N9 105.368
N8 N7 H10 119.655
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability