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)/cc-pVDZ

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)/cc-pVDZ
 hartrees
Energy at 0K-132.261706
Energy at 298.15K-132.264341
HF Energy-131.783835
Nuclear repulsion energy62.239199
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)/cc-pVDZ
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' 3348 3277        
2 A' 3287 3217        
3 A' 1717 1681        
4 A' 1374 1344        
5 A' 1069 1047        
6 A' 865 846        
7 A' 505 494        
8 A" 3293 3223        
9 A" 1156 1131        
10 A" 950 930        
11 A" 672 658        
12 A" 539 528        

Unscaled Zero Point Vibrational Energy (zpe) 9387.3 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 9188.3 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)/cc-pVDZ
ABC
1.01976 0.78834 0.46669

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.037 0.913 0.000
C2 -0.037 -0.481 0.651
C3 -0.037 -0.481 -0.651
H4 0.956 1.217 0.000
H5 -0.123 -0.915 1.646
H6 -0.123 -0.915 -1.646

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.53851.53851.03852.46052.4605
C21.53851.30242.07201.08802.3388
C31.53851.30242.07202.33881.0880
H41.03852.07202.07202.90062.9006
H52.46051.08802.33882.90063.2910
H62.46052.33881.08802.90063.2910

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 64.960 N1 C2 H5 138.389
N1 C3 C2 64.960 N1 C3 H6 138.389
C2 N1 C3 50.079 C2 N1 H4 105.381
C2 C3 H6 156.045 C3 N1 H4 105.381
C3 C2 H5 156.045
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability