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)/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD(T)/6-31G*
 hartrees
Energy at 0K-203.538115
Energy at 298.15K-203.542684
HF Energy-202.858530
Nuclear repulsion energy107.027400
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)/6-31G*
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' 3178 3049        
2 A' 3046 2922        
3 A' 2162 2074        
4 A' 1535 1472        
5 A' 1482 1422        
6 A' 1310 1257        
7 A' 1163 1116        
8 A' 933 895        
9 A' 648 622        
10 A' 242 232        
11 A" 3117 2990        
12 A" 1534 1471        
13 A" 1126 1080        
14 A" 550 527        
15 A" 112 108        

Unscaled Zero Point Vibrational Energy (zpe) 11068.9 cm-1
Scaled (by 0.9593) Zero Point Vibrational Energy (zpe) 10618.4 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)/6-31G*
ABC
1.46325 0.17561 0.16167

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.084 -1.572 0.000
N2 0.699 -0.316 0.000
N3 0.000 0.720 0.000
N4 -0.516 1.756 0.000
H5 0.646 -2.386 0.000
H6 -0.714 -1.653 0.897
H7 -0.714 -1.653 -0.897

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.48022.29333.35601.09291.09881.0988
N21.48021.24992.40222.07062.14222.1422
N32.29331.24991.15763.17212.63522.6352
N43.35602.40221.15764.30173.53063.5306
H51.09292.07063.17214.30171.78571.7857
H61.09882.14222.63523.53061.78571.7932
H71.09882.14222.63523.53061.78571.7932

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 114.021 N2 C1 H5 106.185
N2 C1 H6 111.472 N2 C1 H7 111.472
N2 N3 N4 172.441 H5 C1 H6 109.128
H5 C1 H7 109.128 H6 C1 H7 109.365
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability