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All results from a given calculation for CH2N2 (diazirine)

using model chemistry: MP2=FULL/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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-147.290002
Energy at 298.15K-147.292632
HF Energy-146.928645
Nuclear repulsion energy60.042487
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=FULL/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 3237 3069 0.12      
2 A1 1543 1463 0.19      
3 A1 1012 959 0.01      
4 A1 744 706 9.56      
5 A2 974 923 0.00      
6 B1 3381 3205 5.76      
7 B1 1099 1042 1.88      
8 B2 1013 960 39.01      
9 B2 610 578 1.48      

Unscaled Zero Point Vibrational Energy (zpe) 6806.2 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 6452.2 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=FULL/3-21G*
ABC
1.16057 0.71963 0.49050

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.863
N2 0.000 0.674 -0.567
N3 0.000 -0.674 -0.567
H4 0.943 0.000 1.383
H5 -0.943 0.000 1.383

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.58151.58151.07661.0766
N21.58151.34862.26902.2690
N31.58151.34862.26902.2690
H41.07662.26902.26901.8853
H51.07662.26902.26901.8853

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 64.762 C1 N3 N2 64.762
N2 C1 N3 50.475 N2 C1 H4 115.914
N2 C1 H5 115.914 N3 C1 H4 115.914
N3 C1 H5 115.914 H4 C1 H5 122.220
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability