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 CN2 (3H-Diazirin-3-ylidene)

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-146.647702
Energy at 298.15K-146.647574
HF Energy-146.647702
Nuclear repulsion energy53.683013
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
(Å4/u)
Dep P Dep U
1 A1 1856 1679 20.21      
2 A1 1313 1188 29.46      
3 B2 1140 1031 0.02      

Unscaled Zero Point Vibrational Energy (zpe) 2154.3 cm-1
Scaled (by 0.9044) Zero Point Vibrational Energy (zpe) 1948.4 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
1.55345 1.39071 0.73379

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 0.841
N2 0.000 0.622 -0.360
N3 0.000 -0.622 -0.360

Atom - Atom Distances (Å)
  C1 N2 N3
C11.35291.3529
N21.35291.2450
N31.35291.2450

picture of 3H-Diazirin-3-ylidene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 62.607 C1 N3 N2 62.607
N2 C1 N3 54.786
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 0.054      
2 N -0.027      
3 N -0.027      


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 -0.556 0.556
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.596 0.000 0.000
y 0.000 -17.789 0.000
z 0.000 0.000 -19.685
Traceless
 xyz
x 4.141 0.000 0.000
y 0.000 -0.648 0.000
z 0.000 0.000 -3.493
Polar
3z2-r2-6.985
x2-y23.193
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.904 0.000 0.000
y 0.000 2.718 0.000
z 0.000 0.000 2.844


<r2> (average value of r2) Å2
<r2> 22.326
(<r2>)1/2 4.725