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

using model chemistry: QCISD/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 QCISD/3-21G*
 hartrees
Energy at 0K-202.153587
Energy at 298.15K-202.158082
HF Energy-201.683519
Nuclear repulsion energy105.175348
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 QCISD/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' 3139 3017 10.89      
2 A' 3027 2910 28.20      
3 A' 1862 1790 302.74      
4 A' 1572 1511 13.38      
5 A' 1484 1426 24.68      
6 A' 1158 1113 105.91      
7 A' 1124 1080 30.64      
8 A' 803 772 11.60      
9 A' 628 603 12.10      
10 A' 245 235 6.91      
11 A" 3086 2966 28.51      
12 A" 1570 1509 6.83      
13 A" 1111 1068 0.03      
14 A" 488 469 6.72      
15 A" 126 121 1.24      

Unscaled Zero Point Vibrational Energy (zpe) 10711.3 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 10294.6 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 QCISD/3-21G*
ABC
1.42283 0.16882 0.15544

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.131 -1.607 0.000
N2 0.709 -0.336 0.000
N3 0.000 0.734 0.000
N4 -0.464 1.804 0.000
H5 0.592 -2.428 0.000
H6 -0.760 -1.673 0.898
H7 -0.760 -1.673 -0.898

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.52312.34503.42731.09381.09881.0988
N21.52311.28362.44022.09552.17962.1796
N32.34501.28361.16603.21752.67922.6792
N43.42732.44021.16604.36203.60303.6030
H51.09382.09553.21754.36201.79031.7903
H61.09882.17962.67923.60301.79031.7965
H71.09882.17962.67923.60301.79031.7965

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 113.058 N2 C1 H5 105.224
N2 C1 H6 111.437 N2 C1 H7 111.437
N2 N3 N4 169.955 H5 C1 H6 109.481
H5 C1 H7 109.481 H6 C1 H7 109.674
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability