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All results from a given calculation for CH3N3 (methyl azide)

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 CS 1A'
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-36.471905
Energy at 298.15K-36.476340
HF Energy-36.032187
Nuclear repulsion energy55.352663
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' 3200 3092 21.00      
2 A' 3034 2932 71.15      
3 A' 2498 2414 111.36      
4 A' 1523 1472 17.79      
5 A' 1466 1416 9.92      
6 A' 1165 1126 133.05      
7 A' 1133 1095 0.09      
8 A' 801 774 4.19      
9 A' 611 590 11.85      
10 A' 214 207 12.25      
11 A" 3138 3033 63.02      
12 A" 1507 1456 7.02      
13 A" 1111 1074 0.27      
14 A" 391 378 1.76      
15 A" 177 171 2.91      

Unscaled Zero Point Vibrational Energy (zpe) 10984.2 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 10614.0 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
1.57667 0.15407 0.14437

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)
C1 -0.199 -1.672 0.000
N2 0.650 -0.396 0.000
N3 0.000 0.757 0.000
N4 -0.319 1.924 0.000
H5 0.545 -2.485 0.000
H6 -0.832 -1.739 0.910
H7 -0.832 -1.739 -0.910

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.53252.43693.59731.10291.11021.1102
N21.53251.32342.51382.09192.19732.1973
N32.43691.32341.20953.28782.78432.7843
N43.59732.51381.20954.49283.80903.8090
H51.10292.09193.28784.49281.81131.8113
H61.11022.19732.78433.80901.81131.8196
H71.11022.19732.78433.80901.81131.8196

picture of methyl azide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 116.949 N2 C1 H5 103.884
N2 C1 H6 111.500 N2 C1 H7 111.500
N2 N3 N4 165.901 H5 C1 H6 109.860
H5 C1 H7 109.860 H6 C1 H7 110.072
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability