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All results from a given calculation for CHNCH2 (2H-Azirine)

using model chemistry: CCSD/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD/Def2TZVPP
 hartrees
Energy at 0K-132.427356
Energy at 298.15K-132.430424
HF Energy-131.890079
Nuclear repulsion energy63.846698
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3259 3259 0.46      
2 A' 3145 3145 19.00      
3 A' 1735 1735 9.53      
4 A' 1539 1539 0.18      
5 A' 1332 1332 8.71      
6 A' 1073 1073 0.44      
7 A' 1022 1022 50.31      
8 A' 703 703 12.09      
9 A" 3236 3236 15.98      
10 A" 1132 1132 1.95      
11 A" 1003 1003 0.31      
12 A" 805 805 17.53      

Unscaled Zero Point Vibrational Energy (zpe) 9992.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9992.0 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 CCSD/Def2TZVPP
ABC
1.19397 0.74711 0.50658

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.864 -0.167 0.000
C2 0.000 0.743 0.000
C3 0.656 -0.533 0.000
H4 0.042 1.820 0.000
H5 1.037 -0.956 0.919
H6 1.037 -0.956 -0.919

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.25461.56352.18372.25432.2543
C21.25461.43421.07822.19202.1920
C31.56351.43422.43171.08121.0812
H42.18371.07822.43173.08873.0887
H52.25432.19201.08123.08871.8383
H62.25432.19201.08123.08871.8383

picture of 2H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 70.751 N1 C2 H4 138.683
N1 C3 C2 49.249 N1 C3 H5 115.741
N1 C3 H6 115.741 C2 N1 C3 60.000
C2 C3 N1 49.249 C2 C3 H5 120.603
C2 C3 H6 120.603 C3 C2 H4 150.566
H5 C3 H6 116.451
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability