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

using model chemistry: QCISD(T)/6-311+G(3df,2p)

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)/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.395189
Energy at 298.15K-132.397887
HF Energy-131.825493
Nuclear repulsion energy62.981720
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)/6-311+G(3df,2p)
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' 3355 3200        
2 A' 3351 3196        
3 A' 1726 1646        
4 A' 1361 1298        
5 A' 1066 1016        
6 A' 884 843        
7 A' 531 506        
8 A" 3294 3142        
9 A" 1153 1100        
10 A" 973 928        
11 A" 714 681        
12 A" 562 536        

Unscaled Zero Point Vibrational Energy (zpe) 9484.7 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 9045.6 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)/6-311+G(3df,2p)
ABC
1.04967 0.80345 0.47709

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.036 0.902 0.000
C2 -0.036 -0.479 0.641
C3 -0.036 -0.479 -0.641
H4 0.934 1.232 0.000
H5 -0.126 -0.898 1.626
H6 -0.126 -0.898 -1.626

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.52221.52221.02492.42692.4269
C21.52221.28302.06871.07372.3077
C31.52221.28302.06872.30771.0737
H41.02492.06872.06872.88142.8814
H52.42691.07372.30772.88143.2522
H62.42692.30771.07372.88143.2522

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 65.076 N1 C2 H5 137.746
N1 C3 C2 65.076 N1 C3 H6 137.746
C2 N1 C3 49.848 C2 N1 H4 106.990
C2 C3 H6 156.492 C3 N1 H4 106.990
C3 C2 H5 156.492
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability