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 CH2N2 (diazirine)

using model chemistry: HF/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/6-311G**
 hartrees
Energy at 0K-147.870992
Energy at 298.15K-147.873958
HF Energy-147.870992
Nuclear repulsion energy65.570332
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/6-311G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3269 2970 10.18      
2 A1 1994 1811 48.04      
3 A1 1633 1483 3.50      
4 A1 1158 1052 6.32      
5 A2 1088 988 0.00      
6 B1 3380 3071 25.18      
7 B1 1248 1134 6.59      
8 B2 1162 1056 26.46      
9 B2 973 884 32.38      

Unscaled Zero Point Vibrational Energy (zpe) 7952.2 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 7224.6 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/6-311G**
ABC
1.45446 0.82112 0.58755

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.790
N2 0.000 0.594 -0.530
N3 0.000 -0.594 -0.530
H4 0.922 0.000 1.341
H5 -0.922 0.000 1.341

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.44761.44761.07401.0740
N21.44761.18772.16852.1685
N31.44761.18772.16852.1685
H41.07402.16852.16851.8445
H51.07402.16852.16851.8445

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.783 C1 N3 N2 65.783
N2 C1 N3 48.435 N2 C1 H4 117.864
N2 C1 H5 117.864 N3 C1 H4 117.864
N3 C1 H5 117.864 H4 C1 H5 118.342
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.089      
2 N -0.076      
3 N -0.076      
4 H 0.121      
5 H 0.121      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.840 1.840
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.866 0.000 0.000
y 0.000 -19.887 0.000
z 0.000 0.000 -17.183
Traceless
 xyz
x 2.669 0.000 0.000
y 0.000 -3.363 0.000
z 0.000 0.000 0.694
Polar
3z2-r21.387
x2-y24.022
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.276 0.000 0.000
y 0.000 2.709 0.000
z 0.000 0.000 3.919


<r2> (average value of r2) Å2
<r2> 28.933
(<r2>)1/2 5.379