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All results from a given calculation for CH2N2 (diazirine)

using model chemistry: MP2/CEP-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/CEP-31G
 hartrees
Energy at 0K-26.109247
Energy at 298.15K-26.111958
HF Energy-25.781630
Nuclear repulsion energy32.004683
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 MP2/CEP-31G
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 3175 3068 9.42      
2 A1 1508 1457 0.32      
3 A1 1171 1131 1.48      
4 A1 847 818 12.80      
5 A2 966 934 0.00      
6 B1 3330 3217 27.41      
7 B1 1113 1076 2.17      
8 B2 1041 1005 27.64      
9 B2 650 628 8.79      

Unscaled Zero Point Vibrational Energy (zpe) 6899.7 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 6667.2 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 MP2/CEP-31G
ABC
1.15035 0.72313 0.49148

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-31G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.855
N2 0.000 0.677 -0.566
N3 0.000 -0.677 -0.566
H4 0.954 0.000 1.394
H5 -0.954 0.000 1.394

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.57401.57401.09531.0953
N21.57401.35322.28212.2821
N31.57401.35322.28212.2821
H41.09532.28212.28211.9074
H51.09532.28212.28211.9074

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 64.541 C1 N3 N2 64.541
N2 C1 N3 50.918 N2 C1 H4 116.359
N2 C1 H5 116.359 N3 C1 H4 116.359
N3 C1 H5 116.359 H4 C1 H5 121.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability