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 CHNHCH (1H-Azirine)

using model chemistry: CCSD(T)/TZVP

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(T)/TZVP
 hartrees
Energy at 0K-132.318448
Energy at 298.15K-132.321114
HF Energy-131.819154
Nuclear repulsion energy62.876374
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)/TZVP
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' 3374 3248        
2 A' 3336 3210        
3 A' 1739 1674        
4 A' 1349 1299        
5 A' 1077 1037        
6 A' 880 847        
7 A' 538 518        
8 A" 3317 3193        
9 A" 1148 1105        
10 A" 982 945        
11 A" 695 669        
12 A" 519 500        

Unscaled Zero Point Vibrational Energy (zpe) 9476.5 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 9121.1 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)/TZVP
ABC
1.05110 0.79676 0.47550

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.033 0.906 0.000
C2 -0.033 -0.480 0.642
C3 -0.033 -0.480 -0.642
H4 0.942 1.228 0.000
H5 -0.159 -0.906 1.619
H6 -0.159 -0.906 -1.619

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.52711.52711.02682.43272.4327
C21.52711.28352.06841.07322.3038
C31.52711.28352.06842.30381.0732
H41.02682.06842.06842.89552.8955
H52.43271.07322.30382.89553.2377
H62.43272.30381.07322.89553.2377

picture of 1H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 65.150 N1 C2 H5 137.949
N1 C3 C2 65.150 N1 C3 H6 137.949
C2 N1 C3 49.699 C2 N1 H4 106.523
C2 C3 H6 155.562 C3 N1 H4 106.523
C3 C2 H5 155.562
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability