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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-36.780966
Energy at 298.15K-36.785590
HF Energy-36.159418
Nuclear repulsion energy57.049823
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' 3233 3070 13.22      
2 A' 3080 2924 55.16      
3 A' 2381 2260 271.62      
4 A' 1520 1443 14.14      
5 A' 1469 1395 16.11      
6 A' 1288 1223 115.85      
7 A' 1158 1099 4.72      
8 A' 923 876 18.16      
9 A' 671 637 7.07      
10 A' 223 211 7.89      
11 A" 3175 3015 38.99      
12 A" 1515 1439 6.44      
13 A" 1127 1070 0.08      
14 A" 536 509 4.58      
15 A" 165 156 0.99      

Unscaled Zero Point Vibrational Energy (zpe) 11231.3 cm-1
Scaled (by 0.9494) Zero Point Vibrational Energy (zpe) 10663.0 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
1.39245 0.17218 0.15796

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 -0.079 -1.583 0.000
N2 0.724 -0.323 0.000
N3 0.000 0.721 0.000
N4 -0.547 1.775 0.000
H5 0.659 -2.397 0.000
H6 -0.711 -1.656 0.904
H7 -0.711 -1.656 -0.904

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.49472.30563.39061.09851.10501.1050
N21.49471.26972.45202.07512.15702.1570
N32.30561.26971.18733.18652.64062.6406
N43.39062.45201.18734.34233.55193.5519
H51.09852.07513.18654.34231.80051.8005
H61.10502.15702.64063.55191.80051.8079
H71.10502.15702.64063.55191.80051.8079

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 112.784 N2 C1 H5 105.283
N2 C1 H6 111.253 N2 C1 H7 111.253
N2 N3 N4 172.689 H5 C1 H6 109.588
H5 C1 H7 109.588 H6 C1 H7 109.772
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability