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All results from a given calculation for CH2N2 (diazirine)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-148.495117
Energy at 298.15K-148.498149
HF Energy-147.835906
Nuclear repulsion energy65.562886
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 CBS-Q
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 3299 3299 11.48      
2 A1 2003 2003 47.43      
3 A1 1640 1640 1.89      
4 A1 1182 1182 3.33      
5 A2 1094 1094 0.00      
6 B1 3409 3409 25.83      
7 B1 1255 1255 7.05      
8 B2 1164 1164 24.63      
9 B2 982 982 28.35      

Unscaled Zero Point Vibrational Energy (zpe) 8013.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8013.3 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 CBS-Q
ABC
1.32401 0.79607 0.55542

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.787
N2 0.000 0.595 -0.529
N3 0.000 -0.595 -0.529
H4 0.923 0.000 1.341
H5 -0.923 0.000 1.341

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.44451.44451.07671.0767
N21.44451.19082.16912.1691
N31.44451.19082.16912.1691
H41.07672.16912.16911.8461
H51.07672.16912.16911.8461

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.656 C1 N3 N2 65.656
N2 C1 N3 48.687 N2 C1 H4 117.974
N2 C1 H5 117.974 N3 C1 H4 117.974
N3 C1 H5 117.974 H4 C1 H5 118.025
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability