return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CH2N2 (diazirine)

using model chemistry: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at G2
 hartrees
Energy at 0K-148.493279
Energy at 298.15K-148.496313
HF Energy-147.836092
Nuclear repulsion energy65.515048
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 HF/6-31G*
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 3319 3127 10.79      
2 A1 2001 1886 48.07      
3 A1 1654 1559 1.43      
4 A1 1181 1113 4.05      
5 A2 1097 1034 0.00      
6 B1 3428 3230 27.85      
7 B1 1262 1189 7.05      
8 B2 1176 1108 26.91      
9 B2 985 928 26.70      

Unscaled Zero Point Vibrational Energy (zpe) 8051.8 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 7586.4 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/6-31G*
ABC
1.31681 0.79990 0.55523

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.798
N2 0.000 0.623 -0.535
N3 0.000 -0.623 -0.535
H4 0.930 0.000 1.354
H5 -0.930 0.000 1.354

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.47141.47141.08351.0835
N21.47141.24612.19572.1957
N31.47141.24612.19572.1957
H41.08352.19572.19571.8599
H51.08352.19572.19571.8599

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.601 C1 N3 N2 65.601
N2 C1 N3 48.798 N2 C1 H4 118.016
N2 C1 H5 118.016 N3 C1 H4 118.016
N3 C1 H5 118.016 H4 C1 H5 117.901
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability