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All results from a given calculation for CH2N2 (diazirine)

using model chemistry: HF/3-21G

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/3-21G
 hartrees
Energy at 0K-146.947793
Energy at 298.15K-146.950663
HF Energy-146.947793
Nuclear repulsion energy63.439215
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/3-21G
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 3365 3048 0.00      
2 A1 1709 1548 24.25      
3 A1 1582 1432 18.14      
4 A1 943 854 15.43      
5 A2 1050 951 0.00      
6 B1 3503 3172 6.87      
7 B1 1194 1081 3.93      
8 B2 1100 997 83.85      
9 B2 819 741 6.36      

Unscaled Zero Point Vibrational Energy (zpe) 7632.0 cm-1
Scaled (by 0.9056) Zero Point Vibrational Energy (zpe) 6911.5 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/3-21G
ABC
1.39183 0.75256 0.54309

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.841
N2 0.000 0.609 -0.555
N3 0.000 -0.609 -0.555
H4 0.928 0.000 1.362
H5 -0.928 0.000 1.362

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.52241.52241.06441.0644
N21.52241.21732.21472.2147
N31.52241.21732.21472.2147
H41.06442.21472.21471.8561
H51.06442.21472.21471.8561

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 66.434 C1 N3 N2 66.434
N2 C1 N3 47.132 N2 C1 H4 116.666
N2 C1 H5 116.666 N3 C1 H4 116.666
N3 C1 H5 116.666 H4 C1 H5 121.369
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.229      
2 N -0.148      
3 N -0.148      
4 H 0.262      
5 H 0.262      


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 2.172 2.172
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -16.024 0.000 0.000
y 0.000 -20.885 0.000
z 0.000 0.000 -17.217
Traceless
 xyz
x 3.027 0.000 0.000
y 0.000 -4.264 0.000
z 0.000 0.000 1.238
Polar
3z2-r22.475
x2-y24.861
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.934 0.000 0.000
y 0.000 2.292 0.000
z 0.000 0.000 3.806


<r2> (average value of r2) Å2
<r2> 30.436
(<r2>)1/2 5.517