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All results from a given calculation for CHNHCH (1H-Azirine)

using model chemistry: QCISD(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 QCISD(T)/TZVP
 hartrees
Energy at 0K-132.319051
Energy at 298.15K-132.321711
HF Energy-131.819060
Nuclear repulsion energy62.852574
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(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' 3373 3249        
2 A' 3334 3211        
3 A' 1736 1673        
4 A' 1348 1299        
5 A' 1075 1036        
6 A' 878 846        
7 A' 537 518        
8 A" 3316 3194        
9 A" 1147 1105        
10 A" 981 944        
11 A" 693 667        
12 A" 515 496        

Unscaled Zero Point Vibrational Energy (zpe) 9466.3 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 9117.9 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(T)/TZVP
ABC
1.05057 0.79591 0.47511

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(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
N11.52801.52801.02692.43342.4334
C21.52801.28382.06891.07332.3042
C31.52801.28382.06892.30421.0733
H41.02692.06892.06892.89592.8959
H52.43341.07332.30422.89593.2384
H62.43342.30421.07332.89593.2384

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 65.159 N1 C2 H5 137.930
N1 C3 C2 65.159 N1 C3 H6 137.930
C2 N1 C3 49.683 C2 N1 H4 106.494
C2 C3 H6 155.574 C3 N1 H4 106.494
C3 C2 H5 155.574
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability