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/LANL2DZ

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/LANL2DZ
 hartrees
Energy at 0K-147.739498
Energy at 298.15K-147.742413
HF Energy-147.739498
Nuclear repulsion energy63.737473
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/LANL2DZ
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 3371 3034 8.23      
2 A1 1836 1652 46.42      
3 A1 1632 1468 8.84      
4 A1 1070 963 12.17      
5 A2 1064 958 0.00      
6 B1 3508 3157 20.51      
7 B1 1233 1110 3.55      
8 B2 1157 1041 66.28      
9 B2 860 774 18.16      

Unscaled Zero Point Vibrational Energy (zpe) 7865.5 cm-1
Scaled (by 0.8999) Zero Point Vibrational Energy (zpe) 7078.1 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/LANL2DZ
ABC
1.38093 0.77333 0.55104

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/LANL2DZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.823
N2 0.000 0.612 -0.547
N3 0.000 -0.612 -0.547
H4 0.920 0.000 1.364
H5 -0.920 0.000 1.364

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.50081.50081.06771.0677
N21.50081.22462.20812.2081
N31.50081.22462.20812.2081
H41.06772.20812.20811.8405
H51.06772.20812.20811.8405

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.920 C1 N3 N2 65.920
N2 C1 N3 48.159 N2 C1 H4 117.577
N2 C1 H5 117.577 N3 C1 H4 117.577
N3 C1 H5 117.577 H4 C1 H5 119.063
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.322      
2 N -0.058      
3 N -0.058      
4 H 0.219      
5 H 0.219      


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 2.319 2.319
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.042 0.000 0.000
y 0.000 -21.116 0.000
z 0.000 0.000 -17.626
Traceless
 xyz
x 3.329 0.000 0.000
y 0.000 -4.282 0.000
z 0.000 0.000 0.953
Polar
3z2-r21.906
x2-y25.074
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.026 0.000 0.000
y 0.000 2.810 0.000
z 0.000 0.000 4.126


<r2> (average value of r2) Å2
<r2> 30.327
(<r2>)1/2 5.507