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All results from a given calculation for CHNCH2 (2H-Azirine)

using model chemistry: MP4/aug-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 MP4/aug-cc-pVDZ
 hartrees
Energy at 0K-132.346656
Energy at 298.15K-132.349633
HF Energy-131.851618
Nuclear repulsion energy62.633329
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 MP4/6-31G*
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' 3246 3171        
2 A' 3136 3064        
3 A' 1666 1627        
4 A' 1538 1503        
5 A' 1309 1279        
6 A' 1055 1030        
7 A' 1012 988        
8 A' 672 656        
9 A" 3228 3153        
10 A" 1130 1104        
11 A" 991 968        
12 A" 762 744        

Unscaled Zero Point Vibrational Energy (zpe) 9871.5 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 9643.5 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 MP4/aug-cc-pVDZ
ABC
1.14474 0.72116 0.48745

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.880 -0.174 0.000
C2 0.000 0.759 0.000
C3 0.671 -0.541 0.000
H4 0.037 1.852 0.000
H5 1.050 -0.971 0.934
H6 1.050 -0.971 -0.934

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.28321.59382.22442.28772.2877
C21.28321.46341.09352.22952.2295
C31.59381.46342.47601.09621.0962
H42.22441.09352.47603.14193.1419
H52.28772.22951.09623.14191.8686
H62.28772.22951.09623.14191.8686

picture of 2H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 70.590 N1 C2 H4 138.621
N1 C3 C2 49.410 N1 C3 H5 115.273
N1 C3 H6 115.273 C2 N1 C3 60.000
C2 C3 N1 49.410 C2 C3 H5 120.478
C2 C3 H6 120.478 C3 C2 H4 150.789
H5 C3 H6 116.930
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability