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

using model chemistry: MP2/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at MP2/3-21G
 hartrees
Energy at 0K-202.154259
Energy at 298.15K-202.158832
HF Energy-201.679744
Nuclear repulsion energy104.508921
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 MP2/3-21G
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' 3210 3064 8.45      
2 A' 3083 2943 31.04      
3 A' 2303 2198 109.10      
4 A' 1599 1527 13.81      
5 A' 1505 1437 18.79      
6 A' 1175 1121 76.40      
7 A' 1130 1078 42.10      
8 A' 781 745 5.64      
9 A' 658 628 10.14      
10 A' 226 216 10.69      
11 A" 3152 3009 26.94      
12 A" 1593 1520 6.77      
13 A" 1134 1083 0.01      
14 A" 482 460 4.54      
15 A" 178 170 1.58      

Unscaled Zero Point Vibrational Energy (zpe) 11104.4 cm-1
Scaled (by 0.9545) Zero Point Vibrational Energy (zpe) 10599.2 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 MP2/3-21G
ABC
1.51479 0.16350 0.15187

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.155 -1.631 0.000
N2 0.677 -0.356 0.000
N3 0.000 0.740 0.000
N4 -0.403 1.848 0.000
H5 0.575 -2.439 0.000
H6 -0.780 -1.702 0.896
H7 -0.780 -1.702 -0.896

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.52322.37693.48871.08921.09451.0945
N21.52321.28822.45452.08612.17692.1769
N32.37691.28821.17923.23122.71602.7160
N43.48872.45451.17924.39793.68123.6812
H51.08922.08613.23124.39791.78421.7842
H61.09452.17692.71603.68121.78421.7912
H71.09452.17692.71603.68121.78421.7912

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 115.184 N2 C1 H5 104.756
N2 C1 H6 111.476 N2 C1 H7 111.476
N2 N3 N4 168.291 H5 C1 H6 109.587
H5 C1 H7 109.587 H6 C1 H7 109.831
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability