return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: QCISD(T)/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(T)/TZVP
 hartrees
Energy at 0K-203.653965
Energy at 298.15K-203.658467
HF Energy-202.925941
Nuclear repulsion energy107.778778
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)/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' 3175 3058        
2 A' 3037 2925        
3 A' 2151 2072        
4 A' 1509 1453        
5 A' 1474 1420        
6 A' 1295 1248        
7 A' 1160 1117        
8 A' 928 894        
9 A' 641 617        
10 A' 235 226        
11 A" 3105 2991        
12 A" 1496 1441        
13 A" 1122 1080        
14 A" 465 448        
15 A" 109 105        

Unscaled Zero Point Vibrational Energy (zpe) 10949.9 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 10546.9 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)/TZVP
ABC
1.46193 0.17872 0.16424

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.088 -1.560 0.000
N2 0.701 -0.310 0.000
N3 0.000 0.715 0.000
N4 -0.509 1.740 0.000
H5 0.627 -2.379 0.000
H6 -0.717 -1.636 0.893
H7 -0.717 -1.636 -0.893

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.47772.27633.32601.08811.09481.0948
N21.47771.24172.38042.07012.13642.1364
N32.27631.24171.14443.15702.61482.6148
N43.32602.38041.14444.27283.49773.4977
H51.08812.07013.15704.27281.77701.7770
H61.09482.13642.61483.49771.77701.7862
H71.09482.13642.61483.49771.77701.7862

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 113.377 N2 C1 H5 106.584
N2 C1 H6 111.430 N2 C1 H7 111.430
N2 N3 N4 172.088 H5 C1 H6 108.988
H5 C1 H7 108.988 H6 C1 H7 109.333
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability