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All results from a given calculation for CH2N2 (diazirine)

using model chemistry: MP2/CEP-121G

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-121G
 hartrees
Energy at 0K-26.146278
Energy at 298.15K-26.149015
HF Energy-25.788903
Nuclear repulsion energy32.179011
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-121G
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 3128 3053 1.95      
2 A1 1504 1468 0.40      
3 A1 1174 1146 2.25      
4 A1 836 816 9.79      
5 A2 973 950 0.00      
6 B1 3289 3210 16.13      
7 B1 1118 1091 2.68      
8 B2 1063 1038 23.76      
9 B2 666 650 12.54      

Unscaled Zero Point Vibrational Energy (zpe) 6875.6 cm-1
Scaled (by 0.976) Zero Point Vibrational Energy (zpe) 6710.6 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-121G
ABC
1.16216 0.73044 0.49651

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.853
N2 0.000 0.673 -0.563
N3 0.000 -0.673 -0.563
H4 0.949 0.000 1.381
H5 -0.949 0.000 1.381

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.56751.56751.08611.0861
N21.56751.34622.26522.2652
N31.56751.34622.26522.2652
H41.08612.26522.26521.8984
H51.08612.26522.26521.8984

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 64.570 C1 N3 N2 64.570
N2 C1 N3 50.861 N2 C1 H4 116.036
N2 C1 H5 116.036 N3 C1 H4 116.036
N3 C1 H5 116.036 H4 C1 H5 121.841
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability