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: HF/CEP-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 HF/CEP-31G
 hartrees
Energy at 0K-36.046209
Energy at 298.15K-36.050767
HF Energy-36.046209
Nuclear repulsion energy57.508408
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/CEP-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' 3371 3038 33.33      
2 A' 3211 2894 84.00      
3 A' 2186 1970 656.39      
4 A' 1626 1466 21.63      
5 A' 1587 1430 13.25      
6 A' 1254 1131 18.68      
7 A' 1234 1112 272.34      
8 A' 902 813 47.37      
9 A' 631 569 16.18      
10 A' 252 227 5.23      
11 A" 3290 2966 93.38      
12 A" 1633 1472 9.15      
13 A" 1205 1086 1.27      
14 A" 471 424 12.56      
15 A" 127 114 2.61      

Unscaled Zero Point Vibrational Energy (zpe) 11489.3 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 10356.5 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/CEP-31G
ABC
1.48962 0.17155 0.15844

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.132 -1.591 0.000
N2 0.689 -0.342 0.000
N3 0.000 0.736 0.000
N4 -0.443 1.789 0.000
H5 0.584 -2.402 0.000
H6 -0.757 -1.667 0.890
H7 -0.757 -1.667 -0.890

Atom - Atom Distances (Å)
  C1 N2 N3 N4 H5 H6 H7
C11.49482.33113.39501.08141.09001.0900
N21.49481.27982.41382.06212.15402.1540
N32.33111.27981.14283.19162.67232.6723
N43.39502.41381.14284.31513.58313.5831
H51.08142.06213.19164.31511.76921.7692
H61.09002.15402.67233.58311.76921.7792
H71.09002.15402.67233.58311.76921.7792

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 114.094 N2 C1 H5 105.209
N2 C1 H6 111.925 N2 C1 H7 111.925
N2 N3 N4 170.242 H5 C1 H6 109.126
H5 C1 H7 109.126 H6 C1 H7 109.398
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.359      
2 N -0.112      
3 N 0.210      
4 N -0.217      
5 H 0.191      
6 H 0.143      
7 H 0.143      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.724 -1.915 0.000 2.577
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.263 2.174 0.000
y 2.174 -23.817 0.000
z 0.000 0.000 -23.674
Traceless
 xyz
x -2.517 2.174 0.000
y 2.174 1.151 0.000
z 0.000 0.000 1.366
Polar
3z2-r22.732
x2-y2-2.446
xy2.174
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.392 -1.603 0.000
y -1.603 7.650 0.000
z 0.000 0.000 2.351


<r2> (average value of r2) Å2
<r2> 62.614
(<r2>)1/2 7.913