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

using model chemistry: QCISD(T)/aug-cc-pVTZ

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(T)/aug-cc-pVTZ
 hartrees
Energy at 0K-203.785765
Energy at 298.15K-203.790381
HF Energy-202.942053
Nuclear repulsion energy107.905734
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(T)/aug-cc-pVTZ
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' 3158 3053        
2 A' 3025 2925        
3 A' 2146 2075        
4 A' 1506 1456        
5 A' 1449 1401        
6 A' 1295 1252        
7 A' 1150 1112        
8 A' 928 897        
9 A' 659 637        
10 A' 241 233        
11 A" 3093 2990        
12 A" 1509 1459        
13 A" 1112 1075        
14 A" 562 543        
15 A" 122 118        

Unscaled Zero Point Vibrational Energy (zpe) 10977.9 cm-1
Scaled (by 0.9668) Zero Point Vibrational Energy (zpe) 10613.4 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(T)/aug-cc-pVTZ
ABC
1.44436 0.17968 0.16482

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.073 -1.558 0.000
N2 0.706 -0.302 0.000
N3 0.000 0.717 0.000
N4 -0.536 1.726 0.000
H5 0.649 -2.370 0.000
H6 -0.700 -1.634 0.893
H7 -0.700 -1.634 -0.893

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.47862.27593.31611.08711.09351.0935
N21.47861.23962.37812.06952.13302.1330
N32.27591.23961.14263.15462.61022.6102
N43.31612.37811.14264.26413.48023.4802
H51.08712.06953.15464.26411.77721.7772
H61.09352.13302.61023.48021.77721.7866
H71.09352.13302.61023.48021.77721.7866

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 113.418 N2 C1 H5 106.530
N2 C1 H6 111.164 N2 C1 H7 111.164
N2 N3 N4 173.248 H5 C1 H6 109.176
H5 C1 H7 109.176 H6 C1 H7 109.552
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability