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All results from a given calculation for CH2N2 (diazirine)

using model chemistry: CCD/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 CCD/3-21G*
 hartrees
Energy at 0K-147.285119
Energy at 298.15K-147.287857
HF Energy-146.941007
Nuclear repulsion energy61.244148
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 CCD/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 3202 3062 0.01      
2 A1 1538 1471 0.06      
3 A1 1300 1243 7.48      
4 A1 873 835 5.22      
5 A2 965 923 0.00      
6 B1 3334 3189 6.21      
7 B1 1096 1048 2.33      
8 B2 997 954 52.43      
9 B2 681 652 1.40      

Unscaled Zero Point Vibrational Energy (zpe) 6992.9 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 6688.7 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 CCD/3-21G*
ABC
1.26558 0.71754 0.50738

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.864
N2 0.000 0.642 -0.568
N3 0.000 -0.642 -0.568
H4 0.943 0.000 1.388
H5 -0.943 0.000 1.388

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.56911.56911.07941.0794
N21.56911.28302.26482.2648
N31.56911.28302.26482.2648
H41.07942.26482.26481.8870
H51.07942.26482.26481.8870

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.868 C1 N3 N2 65.868
N2 C1 N3 48.265 N2 C1 H4 116.319
N2 C1 H5 116.319 N3 C1 H4 116.319
N3 C1 H5 116.319 H4 C1 H5 121.866
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability