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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-36.522005
Energy at 298.15K-36.526439
HF Energy-36.042765
Nuclear repulsion energy55.700304
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' 3144 3069 11.85      
2 A' 2971 2899 60.26      
3 A' 2419 2361 132.22      
4 A' 1520 1484 17.43      
5 A' 1470 1435 11.75      
6 A' 1157 1129 131.31      
7 A' 1129 1102 5.13      
8 A' 795 776 5.22      
9 A' 609 594 13.03      
10 A' 218 212 11.58      
11 A" 3075 3002 43.76      
12 A" 1500 1464 7.39      
13 A" 1110 1083 0.94      
14 A" 381 372 2.37      
15 A" 166 162 2.47      

Unscaled Zero Point Vibrational Energy (zpe) 10830.7 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 10570.8 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
1.57475 0.15636 0.14630

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 -0.193 -1.662 0.000
N2 0.653 -0.388 0.000
N3 0.000 0.753 0.000
N4 -0.330 1.906 0.000
H5 0.545 -2.471 0.000
H6 -0.821 -1.728 0.904
H7 -0.821 -1.728 -0.904

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.52932.42253.57091.09551.10271.1027
N21.52931.31452.49612.08582.18762.1876
N32.42251.31451.19983.26982.76522.7652
N43.57092.49611.19984.46413.77703.7770
H51.09552.08583.26984.46411.79921.7992
H61.10272.18762.76523.77701.79921.8080
H71.10272.18762.76523.77701.79921.8080

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 116.630 N2 C1 H5 104.021
N2 C1 H6 111.405 N2 C1 H7 111.405
N2 N3 N4 166.204 H5 C1 H6 109.860
H5 C1 H7 109.860 H6 C1 H7 110.129
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability