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: B3LYP/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 B3LYP/CEP-31G
 hartrees
Energy at 0K-26.491107
Energy at 298.15K-26.493902
HF Energy-26.491107
Nuclear repulsion energy32.841890
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 B3LYP/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 3169 3069 10.27      
2 A1 1563 1513 8.01      
3 A1 1462 1415 10.15      
4 A1 973 942 6.03      
5 A2 953 923 0.00      
6 B1 3306 3202 26.99      
7 B1 1121 1086 1.61      
8 B2 1013 981 80.22      
9 B2 733 710 6.22      

Unscaled Zero Point Vibrational Energy (zpe) 7146.4 cm-1
Scaled (by 0.9684) Zero Point Vibrational Energy (zpe) 6920.6 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 B3LYP/CEP-31G
ABC
1.26047 0.73786 0.51672

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.844
N2 0.000 0.643 -0.560
N3 0.000 -0.643 -0.560
H4 0.945 0.000 1.388
H5 -0.945 0.000 1.388

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.54481.54481.08971.0897
N21.54481.28582.25852.2585
N31.54481.28582.25852.2585
H41.08972.25852.25851.8890
H51.08972.25852.25851.8890

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.406 C1 N3 N2 65.406
N2 C1 N3 49.187 N2 C1 H4 116.971
N2 C1 H5 116.971 N3 C1 H4 116.971
N3 C1 H5 116.971 H4 C1 H5 120.161
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.472      
2 N 0.019      
3 N 0.019      
4 H 0.216      
5 H 0.216      


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 2.219 2.219
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.727 0.000 0.000
y 0.000 -20.792 0.000
z 0.000 0.000 -17.212
Traceless
 xyz
x 3.275 0.000 0.000
y 0.000 -4.323 0.000
z 0.000 0.000 1.048
Polar
3z2-r22.095
x2-y25.065
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.058 0.000 0.000
y 0.000 2.907 0.000
z 0.000 0.000 4.213


<r2> (average value of r2) Å2
<r2> 26.948
(<r2>)1/2 5.191