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All results from a given calculation for CH2N2 (diazirine)

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 C2V 1A1
Energy calculated at HF/CEP-31G*
 hartrees
Energy at 0K-25.917968
Energy at 298.15K-25.920928
HF Energy-25.917968
Nuclear repulsion energy34.482799
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 A1 3326 2987 30.13      
2 A1 1992 1789 53.39      
3 A1 1634 1468 0.95      
4 A1 1188 1067 3.22      
5 A2 1083 973 0.00      
6 B1 3435 3084 48.93      
7 B1 1241 1115 7.31      
8 B2 1157 1039 26.64      
9 B2 975 876 31.16      

Unscaled Zero Point Vibrational Energy (zpe) 8015.1 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 7197.6 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/CEP-31G*
ABC
1.40397 0.81267 0.57564

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.793
N2 0.000 0.606 -0.533
N3 0.000 -0.606 -0.533
H4 0.927 0.000 1.350
H5 -0.927 0.000 1.350

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.45811.45811.08141.0814
N21.45811.21142.18442.1844
N31.45811.21142.18442.1844
H41.08142.18442.18441.8544
H51.08142.18442.18441.8544

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.456 C1 N3 N2 65.456
N2 C1 N3 49.088 N2 C1 H4 117.912
N2 C1 H5 117.912 N3 C1 H4 117.912
N3 C1 H5 117.912 H4 C1 H5 118.056
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 -0.372      
2 N 0.014      
3 N 0.014      
4 H 0.172      
5 H 0.172      


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 2.024 2.024
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.786 0.000 0.000
y 0.000 -19.869 0.000
z 0.000 0.000 -17.225
Traceless
 xyz
x 2.762 0.000 0.000
y 0.000 -3.364 0.000
z 0.000 0.000 0.602
Polar
3z2-r21.205
x2-y24.084
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.094 0.000 0.000
y 0.000 2.746 0.000
z 0.000 0.000 3.887


<r2> (average value of r2) Å2
<r2> 25.400
(<r2>)1/2 5.040