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

using model chemistry: CISD/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/cc-pVTZ
 hartrees
Energy at 0K-132.306895
Energy at 298.15K-132.309788
HF Energy-131.828397
Nuclear repulsion energy63.806742
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 CISD/cc-pVTZ
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' 3499 3254 11.33      
2 A' 3464 3220 2.42      
3 A' 1848 1719 7.77      
4 A' 1427 1327 16.79      
5 A' 1135 1056 8.25      
6 A' 951 885 28.60      
7 A' 616 573 79.68      
8 A" 3397 3158 19.49      
9 A" 1210 1125 41.68      
10 A" 1044 971 16.36      
11 A" 819 762 5.63      
12 A" 652 606 4.18      

Unscaled Zero Point Vibrational Energy (zpe) 10031.4 cm-1
Scaled (by 0.9298) Zero Point Vibrational Energy (zpe) 9327.2 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 CISD/cc-pVTZ
ABC
1.07794 0.82485 0.48967

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.036 0.889 0.000
C2 -0.036 -0.473 0.632
C3 -0.036 -0.473 -0.632
H4 0.919 1.225 0.000
H5 -0.115 -0.888 1.609
H6 -0.115 -0.888 -1.609

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.50111.50111.01282.39892.3989
C21.50111.26452.04811.06472.2811
C31.50111.26452.04812.28111.0647
H41.01282.04812.04812.85072.8507
H52.39891.06472.28112.85073.2185
H62.39892.28111.06472.85073.2185

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 65.090 N1 C2 H5 137.788
N1 C3 C2 65.090 N1 C3 H6 137.788
C2 N1 C3 49.819 C2 N1 H4 107.523
C2 C3 H6 156.577 C3 N1 H4 107.523
C3 C2 H5 156.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability