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: B2PLYP/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 B2PLYP/3-21G*
 hartrees
Energy at 0K-202.675035
Energy at 298.15K-202.679573
HF Energy-202.506110
Nuclear repulsion energy105.452604
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 B2PLYP/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' 3197 3197 8.63      
2 A' 3075 3075 30.88      
3 A' 1952 1952 232.21      
4 A' 1580 1580 15.17      
5 A' 1492 1492 21.80      
6 A' 1195 1195 99.26      
7 A' 1144 1144 0.28      
8 A' 810 810 5.99      
9 A' 636 636 14.47      
10 A' 244 244 8.88      
11 A" 3138 3138 25.69      
12 A" 1580 1580 8.47      
13 A" 1121 1121 0.09      
14 A" 500 500 5.53      
15 A" 137 137 1.28      

Unscaled Zero Point Vibrational Energy (zpe) 10900.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10900.3 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 B2PLYP/3-21G*
ABC
1.53142 0.16687 0.15492

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.135 -1.616 0.000
N2 0.674 -0.342 0.000
N3 0.000 0.731 0.000
N4 -0.426 1.825 0.000
H5 0.594 -2.423 0.000
H6 -0.760 -1.689 0.894
H7 -0.760 -1.689 -0.894

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.50932.35103.45331.08761.09301.0930
N21.50931.26712.43022.08322.16122.1612
N32.35101.26711.17403.20992.68982.6898
N43.45332.43021.17404.36913.64153.6415
H51.08762.08323.20994.36911.78041.7804
H61.09302.16122.68983.64151.78041.7873
H71.09302.16122.68983.64151.78041.7873

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 115.448 N2 C1 H5 105.522
N2 C1 H6 111.298 N2 C1 H7 111.298
N2 N3 N4 169.151 H5 C1 H6 109.467
H5 C1 H7 109.467 H6 C1 H7 109.692
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.405      
2 N -0.236      
3 N 0.011      
4 N -0.032      
5 H 0.233      
6 H 0.214      
7 H 0.214      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.956 -2.368 0.000 2.554
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.596 1.786 0.000
y 1.786 -23.309 0.000
z 0.000 0.000 -23.201
Traceless
 xyz
x -1.341 1.786 0.000
y 1.786 0.590 0.000
z 0.000 0.000 0.751
Polar
3z2-r21.502
x2-y2-1.287
xy1.786
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.039 -1.227 0.000
y -1.227 7.077 0.000
z 0.000 0.000 2.287


<r2> (average value of r2) Å2
<r2> 77.593
(<r2>)1/2 8.809