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-26.566320
Energy at 298.15K-26.569162
HF Energy-26.566320
Nuclear repulsion energy33.653151
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
(Å4/u)
Dep P Dep U
1 A1 3136 3029 17.27      
2 A1 1715 1656 26.42      
3 A1 1490 1439 2.11      
4 A1 1044 1008 3.26      
5 A2 975 942 0.00      
6 B1 3250 3139 29.58      
7 B1 1136 1097 2.96      
8 B2 991 957 49.73      
9 B2 821 793 17.13      

Unscaled Zero Point Vibrational Energy (zpe) 7278.7 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 7029.0 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
1.32852 0.77645 0.54718

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 0.816
N2 0.000 0.624 -0.545
N3 0.000 -0.624 -0.545
H4 0.944 0.000 1.369
H5 -0.944 0.000 1.369

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.49711.49711.09421.0942
N21.49711.24732.22382.2238
N31.49711.24732.22382.2238
H41.09422.22382.22381.8878
H51.09422.22382.22381.8878

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.381 C1 N3 N2 65.381
N2 C1 N3 49.237 N2 C1 H4 117.378
N2 C1 H5 117.378 N3 C1 H4 117.378
N3 C1 H5 117.378 H4 C1 H5 119.226
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 -0.505      
2 N 0.042      
3 N 0.042      
4 H 0.210      
5 H 0.210      


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 1.855 1.855
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -15.580 0.000 0.000
y 0.000 -19.836 0.000
z 0.000 0.000 -16.918
Traceless
 xyz
x 2.797 0.000 0.000
y 0.000 -3.587 0.000
z 0.000 0.000 0.791
Polar
3z2-r21.582
x2-y24.256
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.197 0.000 0.000
y 0.000 2.815 0.000
z 0.000 0.000 4.051


<r2> (average value of r2) Å2
<r2> 25.952
(<r2>)1/2 5.094