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All results from a given calculation for CN2 (3H-Diazirin-3-ylidene)

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 C2V 1A1
Energy calculated at PBEPBE/3-21G*
 hartrees
Energy at 0K-146.400704
Energy at 298.15K-146.400385
HF Energy-146.400704
Nuclear repulsion energy48.586297
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 A1 1190 1134 3.40      
2 A1 840 801 17.79      
3 B2 740 706 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 1384.9 cm-1
Scaled (by 0.9535) Zero Point Vibrational Energy (zpe) 1320.5 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 PBEPBE/3-21G*
ABC
1.27244 1.13921 0.60107

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.929
N2 0.000 0.688 -0.398
N3 0.000 -0.688 -0.398

Atom - Atom Distances (Å)
  C1 N2 N3
C11.49481.4948
N21.49481.3756
N31.49481.3756

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 62.606 C1 N3 N2 62.606
N2 C1 N3 54.788
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 0.271      
2 N -0.135      
3 N -0.135      


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 -0.172 0.172
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.946 0.000 0.000
y 0.000 -18.236 0.000
z 0.000 0.000 -19.362
Traceless
 xyz
x 3.853 0.000 0.000
y 0.000 -1.082 0.000
z 0.000 0.000 -2.771
Polar
3z2-r2-5.542
x2-y23.290
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.650 0.000 0.000
y 0.000 2.642 0.000
z 0.000 0.000 3.042


<r2> (average value of r2) Å2
<r2> 24.960
(<r2>)1/2 4.996