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=FULL/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=FULL/Def2TZVPP
 hartrees
Energy at 0K-132.430432
Energy at 298.15K-132.433237
HF Energy-131.832434
Nuclear repulsion energy63.401170
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=FULL/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' 3396 3396 13.27      
2 A' 3394 3394 1.34      
3 A' 1780 1780 8.70      
4 A' 1390 1390 14.00      
5 A' 1099 1099 5.53      
6 A' 915 915 26.39      
7 A' 582 582 78.36      
8 A" 3332 3332 16.73      
9 A" 1175 1175 38.58      
10 A" 997 997 15.45      
11 A" 776 776 5.59      
12 A" 614 614 3.22      

Unscaled Zero Point Vibrational Energy (zpe) 9726.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9726.1 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=FULL/Def2TZVPP
ABC
1.06412 0.81405 0.48349

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.036 0.896 0.000
C2 -0.036 -0.475 0.637
C3 -0.036 -0.475 -0.637
H4 0.928 1.225 0.000
H5 -0.119 -0.894 1.616
H6 -0.119 -0.894 -1.616

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.51181.51181.01892.41282.4128
C21.51181.27392.05561.06792.2929
C31.51181.27392.05562.29291.0679
H41.01892.05562.05562.86302.8630
H52.41281.06792.29292.86303.2316
H62.41282.29291.06792.86303.2316

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 65.081 N1 C2 H5 137.895
N1 C3 C2 65.081 N1 C3 H6 137.895
C2 N1 C3 49.837 C2 N1 H4 107.025
C2 C3 H6 156.434 C3 N1 H4 107.025
C3 C2 H5 156.434
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability