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All results from a given calculation for CH2N2 (diazirine)

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVDZ
 hartrees
Energy at 0K-148.345280
Energy at 298.15K-148.348134
HF Energy-147.842506
Nuclear repulsion energy63.393223
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 CCSD(T)/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 3154 3087        
2 A1 1654 1619        
3 A1 1477 1446        
4 A1 1042 1020        
5 A2 977 957        
6 B1 3274 3205        
7 B1 1123 1099        
8 B2 993 972        
9 B2 832 814        

Unscaled Zero Point Vibrational Energy (zpe) 7263.1 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 7109.2 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 CCSD(T)/cc-pVDZ
ABC
1.33050 0.78324 0.55095

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.811
N2 0.000 0.623 -0.543
N3 0.000 -0.623 -0.543
H4 0.944 0.000 1.365
H5 -0.944 0.000 1.365

Atom - Atom Distances (Å)
  C1 N2 N3 H4 H5
C11.49041.49041.09481.0948
N21.49041.24612.21792.2179
N31.49041.24612.21792.2179
H41.09482.21792.21791.8888
H51.09482.21792.21791.8888

picture of diazirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 N3 65.288 C1 N3 N2 65.288
N2 C1 N3 49.424 N2 C1 H4 117.354
N2 C1 H5 117.354 N3 C1 H4 117.354
N3 C1 H5 117.354 H4 C1 H5 119.230
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability