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

using model chemistry: CCD/3-21G*

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/3-21G*
 hartrees
Energy at 0K-131.331410
Energy at 298.15K-131.334075
HF Energy-131.013334
Nuclear repulsion energy60.931036
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/3-21G*
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' 3360 3214 2.87      
2 A' 3123 2987 50.71      
3 A' 1702 1628 4.19      
4 A' 1390 1330 19.43      
5 A' 1040 995 2.21      
6 A' 804 769 5.78      
7 A' 589 564 89.88      
8 A" 3300 3156 4.66      
9 A" 1148 1098 29.33      
10 A" 1022 977 21.71      
11 A" 732 700 3.15      
12 A" 495 474 1.86      

Unscaled Zero Point Vibrational Energy (zpe) 9352.4 cm-1
Scaled (by 0.9565) Zero Point Vibrational Energy (zpe) 8945.6 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 CCD/3-21G*
ABC
1.03736 0.70878 0.44148

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.038 0.968 0.000
C2 -0.038 -0.508 0.648
C3 -0.038 -0.508 -0.648
H4 0.968 1.254 0.000
H5 -0.120 -0.966 1.615
H6 -0.120 -0.966 -1.615

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.61171.61171.04642.52132.5213
C21.61171.29522.13011.07392.3104
C31.61171.29522.13012.31041.0739
H41.04642.13012.13012.95362.9536
H52.52131.07392.31042.95363.2309
H62.52132.31041.07392.95363.2309

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 66.309 N1 C2 H5 138.834
N1 C3 C2 66.309 N1 C3 H6 138.834
C2 N1 C3 47.383 C2 N1 H4 104.501
C2 C3 H6 154.314 C3 N1 H4 104.501
C3 C2 H5 154.314
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability