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

using model chemistry: PBEPBE/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 PBEPBE/3-21G
 hartrees
Energy at 0K-202.714729
Energy at 298.15K-202.719210
HF Energy-202.714729
Nuclear repulsion energy105.328358
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 PBEPBE/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' 3101 3073 7.81      
2 A' 2970 2943 34.89      
3 A' 1971 1954 224.68      
4 A' 1510 1496 16.84      
5 A' 1427 1414 13.11      
6 A' 1192 1181 69.45      
7 A' 1105 1094 9.44      
8 A' 808 801 5.21      
9 A' 629 623 12.19      
10 A' 241 239 7.32      
11 A" 3033 3006 26.37      
12 A" 1511 1498 9.99      
13 A" 1066 1056 0.83      
14 A" 501 496 5.57      
15 A" 116 115 1.09      

Unscaled Zero Point Vibrational Energy (zpe) 10590.1 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 10493.8 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 PBEPBE/3-21G
ABC
1.51367 0.16709 0.15502

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.127 -1.612 0.000
N2 0.678 -0.339 0.000
N3 0.000 0.730 0.000
N4 -0.439 1.822 0.000
H5 0.608 -2.429 0.000
H6 -0.760 -1.693 0.902
H7 -0.760 -1.693 -0.902

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.50622.34583.44841.09851.10461.1046
N21.50621.26632.43312.09102.17072.1707
N32.34581.26631.17693.21712.69442.6944
N43.44842.43311.17694.37813.64253.6425
H51.09852.09103.21714.37811.79591.7959
H61.10462.17072.69443.64251.79591.8037
H71.10462.17072.69443.64251.79591.8037

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 115.306 N2 C1 H5 105.724
N2 C1 H6 111.567 N2 C1 H7 111.567
N2 N3 N4 169.534 H5 C1 H6 109.206
H5 C1 H7 109.206 H6 C1 H7 109.466
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.469      
2 N -0.217      
3 N 0.029      
4 N -0.052      
5 H 0.248      
6 H 0.231      
7 H 0.231      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.873 -2.381 0.000 2.536
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.390 1.738 0.000
y 1.738 -23.155 0.000
z 0.000 0.000 -23.083
Traceless
 xyz
x -1.271 1.738 0.000
y 1.738 0.582 0.000
z 0.000 0.000 0.689
Polar
3z2-r21.379
x2-y2-1.236
xy1.738
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.092 -1.160 0.000
y -1.160 7.165 0.000
z 0.000 0.000 2.341


<r2> (average value of r2) Å2
<r2> 77.522
(<r2>)1/2 8.805