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

using model chemistry: HF/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 HF/3-21G*
 hartrees
Energy at 0K-201.691347
Energy at 298.15K-201.696039
HF Energy-201.691347
Nuclear repulsion energy107.838950
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 HF/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' 3323 2999 12.70      
2 A' 3195 2884 34.34      
3 A' 2230 2013 510.73      
4 A' 1670 1507 17.20      
5 A' 1597 1441 16.18      
6 A' 1249 1128 25.06      
7 A' 1170 1056 223.61      
8 A' 849 767 45.55      
9 A' 707 638 19.83      
10 A' 273 246 5.68      
11 A" 3250 2933 41.23      
12 A" 1671 1508 8.58      
13 A" 1200 1083 0.15      
14 A" 589 532 17.61      
15 A" 128 116 2.10      

Unscaled Zero Point Vibrational Energy (zpe) 11550.7 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 10425.7 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 HF/3-21G*
ABC
1.41369 0.17916 0.16388

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.101 -1.567 0.000
N2 0.715 -0.307 0.000
N3 0.000 0.736 0.000
N4 -0.510 1.723 0.000
H5 0.617 -2.371 0.000
H6 -0.722 -1.645 0.885
H7 -0.722 -1.645 -0.885

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.50162.30523.31601.07731.08351.0835
N21.50161.26362.37082.06632.15352.1535
N32.30521.26361.11173.16682.64042.6404
N43.31602.37081.11174.24623.48913.4891
H51.07732.06633.16684.24621.76091.7609
H61.08352.15352.64043.48911.76091.7692
H71.08352.15352.64043.48911.76091.7692

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 112.664 N2 C1 H5 105.309
N2 C1 H6 111.807 N2 C1 H7 111.807
N2 N3 N4 172.882 H5 C1 H6 109.167
H5 C1 H7 109.167 H6 C1 H7 109.458
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.399      
2 N -0.317      
3 N 0.038      
4 N 0.002      
5 H 0.246      
6 H 0.215      
7 H 0.215      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.491 -1.610 0.000 2.195
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.733 1.829 0.000
y 1.829 -22.765 0.000
z 0.000 0.000 -23.574
Traceless
 xyz
x -2.563 1.829 0.000
y 1.829 1.889 0.000
z 0.000 0.000 0.674
Polar
3z2-r21.349
x2-y2-2.968
xy1.829
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.088 -1.359 0.000
y -1.359 6.696 0.000
z 0.000 0.000 2.207


<r2> (average value of r2) Å2
<r2> 74.457
(<r2>)1/2 8.629