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: CCD/aug-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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-132.374757
Energy at 298.15K-132.377571
HF Energy-131.829921
Nuclear repulsion energy63.355765
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 CCD/aug-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' 3405 3258 8.59      
2 A' 3386 3241 2.39      
3 A' 1785 1709 9.48      
4 A' 1389 1329 13.58      
5 A' 1100 1053 7.57      
6 A' 916 877 27.21      
7 A' 574 549 74.67      
8 A" 3320 3177 17.15      
9 A" 1175 1125 38.04      
10 A" 1007 963 17.00      
11 A" 771 737 4.64      
12 A" 624 597 1.90      

Unscaled Zero Point Vibrational Energy (zpe) 9726.0 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 9307.8 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 CCD/aug-cc-pVTZ
ABC
1.06237 0.81337 0.48282

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.036 0.895 0.000
C2 -0.036 -0.476 0.637
C3 -0.036 -0.476 -0.637
H4 0.927 1.232 0.000
H5 -0.120 -0.895 1.619
H6 -0.120 -0.895 -1.619

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.51201.51201.02022.41482.4148
C21.51201.27452.06151.07042.2961
C31.51201.27452.06152.29611.0704
H41.02022.06152.06152.87022.8702
H52.41481.07042.29612.87023.2376
H62.41482.29611.07042.87023.2376

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 65.072 N1 C2 H5 137.838
N1 C3 C2 65.072 N1 C3 H6 137.838
C2 N1 C3 49.857 C2 N1 H4 107.403
C2 C3 H6 156.487 C3 N1 H4 107.403
C3 C2 H5 156.487
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability