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

using model chemistry: QCISD/TZVP

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/TZVP
 hartrees
Energy at 0K-203.620676
Energy at 298.15K-203.625203
HF Energy-202.928853
Nuclear repulsion energy108.333144
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/TZVP
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' 3191 3048 12.05      
2 A' 3053 2917 45.69      
3 A' 2203 2104 541.57      
4 A' 1520 1452 15.39      
5 A' 1491 1424 17.85      
6 A' 1315 1256 159.45      
7 A' 1174 1122 12.74      
8 A' 949 906 16.98      
9 A' 655 626 7.99      
10 A' 240 229 5.33      
11 A" 3119 2980 33.56      
12 A" 1510 1442 6.39      
13 A" 1134 1083 1.70      
14 A" 490 468 11.05      
15 A" 97 93 0.88      

Unscaled Zero Point Vibrational Energy (zpe) 11070.1 cm-1
Scaled (by 0.9553) Zero Point Vibrational Energy (zpe) 10575.3 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 QCISD/TZVP
ABC
1.44733 0.18141 0.16630

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.078 -1.549 0.000
N2 0.706 -0.302 0.000
N3 0.000 0.715 0.000
N4 -0.528 1.718 0.000
H5 0.638 -2.367 0.000
H6 -0.706 -1.629 0.892
H7 -0.706 -1.629 -0.892

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.47312.26553.29801.08661.09351.0935
N21.47311.23772.36692.06612.13312.1331
N32.26551.23771.13363.14712.60562.6056
N43.29802.36691.13364.24793.46853.4685
H51.08662.06613.14714.24791.77321.7732
H61.09352.13312.60563.46851.77321.7831
H71.09352.13312.60563.46851.77321.7831

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 113.094 N2 C1 H5 106.666
N2 C1 H6 111.570 N2 C1 H7 111.570
N2 N3 N4 173.011 H5 C1 H6 108.853
H5 C1 H7 108.853 H6 C1 H7 109.233
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability