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

using model chemistry: MP2/CEP-121G*

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-121G*
 hartrees
Energy at 0K-36.831238
Energy at 298.15K-36.835875
HF Energy-36.176466
Nuclear repulsion energy57.448980
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-121G*
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' 3222 3070 9.96      
2 A' 3061 2917 50.42      
3 A' 2285 2177 289.98      
4 A' 1530 1458 12.79      
5 A' 1476 1406 17.78      
6 A' 1275 1214 113.54      
7 A' 1159 1105 7.09      
8 A' 916 873 18.05      
9 A' 678 646 7.81      
10 A' 230 219 8.33      
11 A" 3155 3006 31.93      
12 A" 1524 1452 7.22      
13 A" 1121 1068 0.71      
14 A" 560 533 5.75      
15 A" 148 141 0.91      

Unscaled Zero Point Vibrational Energy (zpe) 11169.5 cm-1
Scaled (by 0.9528) Zero Point Vibrational Energy (zpe) 10642.3 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-121G*
ABC
1.41959 0.17395 0.15973

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.079 -1.580 0.000
N2 0.715 -0.316 0.000
N3 0.000 0.721 0.000
N4 -0.540 1.762 0.000
H5 0.656 -2.384 0.000
H6 -0.704 -1.654 0.897
H7 -0.704 -1.654 -0.897

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.49202.30273.37381.08931.09591.0959
N21.49201.26012.42782.06852.14612.1461
N32.30271.26011.17253.17402.63472.6347
N43.37382.42781.17254.31533.53563.5356
H51.08932.06853.17404.31531.78541.7854
H61.09592.14612.63473.53561.78541.7940
H71.09592.14612.63473.53561.78541.7940

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 113.324 N2 C1 H5 105.458
N2 C1 H6 111.129 N2 C1 H7 111.129
N2 N3 N4 172.862 H5 C1 H6 109.579
H5 C1 H7 109.579 H6 C1 H7 109.867
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability