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

using model chemistry: CCSD(T)=FULL/6-31G*

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)=FULL/6-31G*
 hartrees
Energy at 0K-132.307523
Energy at 298.15K-132.310549
HF Energy-131.835578
Nuclear repulsion energy63.298179
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)=FULL/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' 3243 3148        
2 A' 3131 3040        
3 A' 1705 1655        
4 A' 1543 1498        
5 A' 1323 1284        
6 A' 1060 1029        
7 A' 1016 986        
8 A' 686 666        
9 A" 3219 3125        
10 A" 1130 1097        
11 A" 992 963        
12 A" 763 741        

Unscaled Zero Point Vibrational Energy (zpe) 9905.0 cm-1
Scaled (by 0.9707) Zero Point Vibrational Energy (zpe) 9614.8 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 CCSD(T)=FULL/6-31G*
ABC
1.16701 0.73846 0.49828

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.870 -0.174 0.000
C2 0.000 0.752 0.000
C3 0.660 -0.534 0.000
H4 0.040 1.838 0.000
H5 1.047 -0.964 0.924
H6 1.047 -0.964 -0.924

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.27031.57202.20782.27032.2703
C21.27031.44501.08672.21212.2121
C31.57201.44502.45101.09021.0902
H42.20781.08672.45103.11713.1171
H52.27032.21211.09023.11711.8479
H62.27032.21211.09023.11711.8479

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 70.419 N1 C2 H4 138.883
N1 C3 C2 49.581 N1 C3 H5 115.844
N1 C3 H6 115.844 C2 N1 C3 60.000
C2 C3 N1 49.581 C2 C3 H5 120.879
C2 C3 H6 120.879 C3 C2 H4 150.698
H5 C3 H6 115.879
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability