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All results from a given calculation for CH2N2 (diazirine)

using model chemistry: B3PW91/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/STO-3G
 hartrees
Energy at 0K-146.765636
Energy at 298.15K-146.768464
HF Energy-146.765636
Nuclear repulsion energy61.183265
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 B3PW91/STO-3G
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 2983 12.55      
2 A1 1671 1479 0.11      
3 A1 1521 1346 0.67      
4 A1 1181 1045 1.03      
5 A2 1023 906 0.00      
6 B1 3545 3138 0.00      
7 B1 1139 1008 5.28      
8 B2 1109 981 32.63      
9 B2 941 833 6.85      

Unscaled Zero Point Vibrational Energy (zpe) 7750.7 cm-1
Scaled (by 0.885) Zero Point Vibrational Energy (zpe) 6859.4 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 B3PW91/STO-3G
ABC
1.19185 0.75775 0.51374

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.825
N2 0.000 0.664 -0.553
N3 0.000 -0.664 -0.553
H4 0.942 0.000 1.393
H5 -0.942 0.000 1.393

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.52971.52971.10001.1000
N21.52971.32842.26162.2616
N31.52971.32842.26162.2616
H41.10002.26162.26161.8840
H51.10002.26162.26161.8840

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 64.265 C1 N3 N2 64.265
N2 C1 N3 51.470 N2 C1 H4 117.716
N2 C1 H5 117.716 N3 C1 H4 117.716
N3 C1 H5 117.716 H4 C1 H5 117.831
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.086      
2 N -0.061      
3 N -0.061      
4 H 0.105      
5 H 0.105      


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 1.506 1.506
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.805 0.000 0.000
y 0.000 -18.685 0.000
z 0.000 0.000 -16.117
Traceless
 xyz
x 2.597 0.000 0.000
y 0.000 -3.225 0.000
z 0.000 0.000 0.628
Polar
3z2-r21.256
x2-y23.881
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.234 0.000 0.000
y 0.000 1.378 0.000
z 0.000 0.000 2.235


<r2> (average value of r2) Å2
<r2> 30.524
(<r2>)1/2 5.525