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

using model chemistry: MP2/CEP-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/CEP-31G
 hartrees
Energy at 0K-52.368830
Energy at 298.15K-52.376046
HF Energy-51.766866
Nuclear repulsion energy115.014289
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/CEP-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 3678 3554 98.85      
2 A 3180 3073 9.88      
3 A 3051 2948 25.53      
4 A 1527 1475 12.08      
5 A 1518 1467 36.24      
6 A 1465 1416 0.80      
7 A 1360 1314 34.49      
8 A 1327 1282 17.27      
9 A 1070 1034 1.22      
10 A 1034 999 1.32      
11 A 998 964 5.47      
12 A 979 946 9.20      
13 A 898 868 19.84      
14 A 883 853 5.64      
15 A 651 629 3.40      
16 A 318 307 3.58      
17 A 3147 3041 27.90      
18 A 1510 1459 16.75      
19 A 1097 1060 0.49      
20 A 719 694 130.85      
21 A 667 644 0.28      
22 A 620 599 10.10      
23 A 241 233 0.10      
24 A 85 82 0.50      

Unscaled Zero Point Vibrational Energy (zpe) 16010.6 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 15471.0 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/CEP-31G
ABC
0.29522 0.11245 0.08275

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -1.203 -0.047 0.000
C2 0.000 0.633 0.000
C3 0.176 2.152 0.000
H4 0.725 2.491 0.903
H5 0.725 2.491 -0.903
H6 -0.830 2.613 0.000
N7 1.037 -0.310 0.000
N8 0.515 -1.630 0.000
N9 -0.881 -1.460 0.000
H10 2.048 -0.174 0.000

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6 N7 N8 N9 H10
N11.38182.59563.31263.31262.68652.25472.33561.44853.2532
C21.38181.52912.18912.18912.14701.40122.32102.27052.2012
C32.59561.52911.10961.10961.10612.60793.79743.76312.9857
H43.31262.18911.10961.80521.80192.95884.22404.35903.1089
H53.31262.18911.10961.80521.80192.95884.22404.35903.1089
H62.68652.14701.10611.80191.80193.46794.45134.07324.0060
N72.25471.40122.60792.95882.95883.46791.41992.23601.0205
N82.33562.32103.79744.22404.22404.45131.41991.40612.1147
N91.44852.27053.76314.35904.35904.07322.23601.40613.1988
H103.25322.20122.98573.10893.10894.00601.02052.11473.1988

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 126.095 N1 C2 N7 108.222
N1 N9 N8 109.802 C2 N1 N9 106.661
C2 C3 H4 111.116 C2 C3 H5 111.116
C2 C3 H6 108.043 C2 N7 N8 110.717
C2 N7 H10 130.066 C3 C2 N7 125.682
H4 C3 H5 108.865 H4 C3 H6 108.822
H5 C3 H6 108.822 N7 N8 N9 104.598
N8 N7 H10 119.217
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability