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

using model chemistry: CCSD(T)/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 CCSD(T)/cc-pVTZ
 hartrees
Energy at 0K-132.450521
Energy at 298.15K-132.453551
HF Energy-131.884007
Nuclear repulsion energy63.494647
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)/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' 3228 3147        
2 A' 3121 3043        
3 A' 1681 1639        
4 A' 1513 1475        
5 A' 1300 1267        
6 A' 1047 1020        
7 A' 998 973        
8 A' 673 656        
9 A" 3213 3132        
10 A" 1109 1081        
11 A" 982 958        
12 A" 773 754        

Unscaled Zero Point Vibrational Energy (zpe) 9819.4 cm-1
Scaled (by 0.9748) Zero Point Vibrational Energy (zpe) 9571.9 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)/cc-pVTZ
ABC
1.17962 0.73940 0.50075

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.869 -0.169 0.000
C2 0.000 0.748 0.000
C3 0.661 -0.536 0.000
H4 0.041 1.827 0.000
H5 1.040 -0.959 0.922
H6 1.040 -0.959 -0.922

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.26341.57332.19402.26252.2625
C21.26341.44351.08032.20112.2011
C31.57331.44352.44281.08301.0830
H42.19401.08032.44283.10043.1004
H52.26252.20111.08303.10041.8435
H62.26252.20111.08303.10041.8435

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 70.715 N1 C2 H4 138.696
N1 C3 C2 49.285 N1 C3 H5 115.572
N1 C3 H6 115.572 C2 N1 C3 60.000
C2 C3 N1 49.285 C2 C3 H5 120.533
C2 C3 H6 120.533 C3 C2 H4 150.589
H5 C3 H6 116.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability