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: 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-132.290075
Energy at 298.15K-132.292654
HF Energy-131.792984
Nuclear repulsion energy62.070081
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' 3370 3292        
2 A' 3273 3198        
3 A' 1744 1703        
4 A' 1404 1371        
5 A' 1087 1062        
6 A' 888 867        
7 A' 511 500        
8 A" 3313 3236        
9 A" 1174 1147        
10 A" 973 950        
11 A" 663 648        
12 A" 526 514        

Unscaled Zero Point Vibrational Energy (zpe) 9462.6 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 9244.0 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
1.01986 0.77935 0.46322

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 -0.036 0.917 0.000
C2 -0.036 -0.485 0.652
C3 -0.036 -0.485 -0.652
H4 0.949 1.236 0.000
H5 -0.135 -0.916 1.644
H6 -0.135 -0.916 -1.644

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.54641.54641.03542.46432.4643
C21.54641.30352.08741.08652.3383
C31.54641.30352.08742.33831.0865
H41.03542.08742.08742.91702.9170
H52.46431.08652.33832.91703.2889
H62.46432.33831.08652.91703.2889

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 138.095
N1 C3 C2 65.072 N1 C3 H6 138.095
C2 N1 C3 49.856 C2 N1 H4 106.209
C2 C3 H6 156.016 C3 N1 H4 106.209
C3 C2 H5 156.016
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability