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: CISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CISD/6-311G*
 hartrees
Energy at 0K-148.300583
Energy at 298.15K-148.303503
HF Energy-147.865753
Nuclear repulsion energy64.659109
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 CISD/6-311G*
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 3225 2984 6.16      
2 A1 1831 1694 27.46      
3 A1 1566 1449 3.55      
4 A1 1118 1035 4.05      
5 A2 1040 963 0.00      
6 B1 3343 3093 17.43      
7 B1 1198 1109 4.98      
8 B2 1080 1000 30.01      
9 B2 909 841 24.87      

Unscaled Zero Point Vibrational Energy (zpe) 7654.8 cm-1
Scaled (by 0.9253) Zero Point Vibrational Energy (zpe) 7083.0 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 CISD/6-311G*
ABC
1.39726 0.80755 0.57233

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.799
N2 0.000 0.607 -0.534
N3 0.000 -0.607 -0.534
H4 0.930 0.000 1.345
H5 -0.930 0.000 1.345

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.46491.46491.07851.0785
N21.46491.21422.18322.1832
N31.46491.21422.18322.1832
H41.07852.18322.18321.8596
H51.07852.18322.18321.8596

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.516 C1 N3 N2 65.516
N2 C1 N3 48.967 N2 C1 H4 117.461
N2 C1 H5 117.461 N3 C1 H4 117.461
N3 C1 H5 117.461 H4 C1 H5 119.111
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability