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All results from a given calculation for CH2N2 (diazirine)

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-148.326435
Energy at 298.15K-148.329312
HF Energy-147.844473
Nuclear repulsion energy63.705815
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 QCISD/cc-pVDZ
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 3169 3040 3.62      
2 A1 1714 1644 21.28      
3 A1 1496 1435 2.69      
4 A1 1072 1029 3.55      
5 A2 990 950 0.00      
6 B1 3288 3154 14.01      
7 B1 1137 1091 5.00      
8 B2 1020 978 27.63      
9 B2 858 823 15.79      

Unscaled Zero Point Vibrational Energy (zpe) 7371.5 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 7072.3 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 QCISD/cc-pVDZ
ABC
1.34730 0.78889 0.55636

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.808
N2 0.000 0.619 -0.541
N3 0.000 -0.619 -0.541
H4 0.942 0.000 1.362
H5 -0.942 0.000 1.362

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.48341.48341.09351.0935
N21.48341.23752.21172.2117
N31.48341.23752.21172.2117
H41.09352.21172.21171.8850
H51.09352.21172.21171.8850

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.349 C1 N3 N2 65.349
N2 C1 N3 49.302 N2 C1 H4 117.443
N2 C1 H5 117.443 N3 C1 H4 117.443
N3 C1 H5 117.443 H4 C1 H5 119.061
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability