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All results from a given calculation for CH2N2 (diazirine)

using model chemistry: CID/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 CID/3-21G*
 hartrees
Energy at 0K-147.250374
Energy at 298.15K-147.253166
HF Energy-146.944730
Nuclear repulsion energy61.983697
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 CID/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 3265 3038 0.04      
2 A1 1582 1472 0.87      
3 A1 1414 1315 14.00      
4 A1 905 842 7.33      
5 A2 994 925 0.00      
6 B1 3399 3163 6.17      
7 B1 1129 1051 2.67      
8 B2 1028 957 63.61      
9 B2 734 683 2.31      

Unscaled Zero Point Vibrational Energy (zpe) 7224.4 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 6722.3 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 CID/3-21G*
ABC
1.30621 0.72994 0.51944

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.855
N2 0.000 0.630 -0.563
N3 0.000 -0.630 -0.563
H4 0.938 0.000 1.379
H5 -0.938 0.000 1.379

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.55241.55241.07431.0743
N21.55241.26102.24722.2472
N31.55241.26102.24722.2472
H41.07432.24722.24721.8760
H51.07432.24722.24721.8760

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 66.038 C1 N3 N2 66.038
N2 C1 N3 47.923 N2 C1 H4 116.452
N2 C1 H5 116.452 N3 C1 H4 116.452
N3 C1 H5 116.452 H4 C1 H5 121.652
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability