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/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-148.740737
Energy at 298.15K-148.743593
HF Energy-148.740737
Nuclear repulsion energy63.917667
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/aug-cc-pVDZ
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 3130 3037 6.39      
2 A1 1730 1679 21.25      
3 A1 1482 1438 3.19      
4 A1 1042 1011 3.62      
5 A2 976 947 0.00      
6 B1 3254 3157 10.09      
7 B1 1129 1096 3.74      
8 B2 993 964 31.06      
9 B2 821 796 14.76      

Unscaled Zero Point Vibrational Energy (zpe) 7278.2 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 7062.7 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/aug-cc-pVDZ
ABC
1.36840 0.78738 0.55886

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.810
N2 0.000 0.613 -0.541
N3 0.000 -0.613 -0.541
H4 0.940 0.000 1.358
H5 -0.940 0.000 1.358

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.48411.48411.08861.0886
N21.48411.22682.20672.2067
N31.48411.22682.20672.2067
H41.08862.20672.20671.8808
H51.08862.20672.20671.8808

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.588 C1 N3 N2 65.588
N2 C1 N3 48.824 N2 C1 H4 117.301
N2 C1 H5 117.301 N3 C1 H4 117.301
N3 C1 H5 117.301 H4 C1 H5 119.511
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 1.118      
2 N -0.219      
3 N -0.219      
4 H -0.340      
5 H -0.340      


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 1.737 1.737
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.128 0.000 0.000
y 0.000 -20.044 0.000
z 0.000 0.000 -17.513
Traceless
 xyz
x 2.650 0.000 0.000
y 0.000 -3.223 0.000
z 0.000 0.000 0.573
Polar
3z2-r21.146
x2-y23.916
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.057 0.000 0.000
y 0.000 3.485 0.000
z 0.000 0.000 4.632


<r2> (average value of r2) Å2
<r2> 29.943
(<r2>)1/2 5.472