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

using model chemistry: CCSD/TZVP

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/TZVP
 hartrees
Energy at 0K-132.354318
Energy at 298.15K-132.357394
HF Energy-131.878879
Nuclear repulsion energy63.764984
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/TZVP
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' 3281 3131 0.94      
2 A' 3152 3009 19.65      
3 A' 1741 1661 9.66      
4 A' 1551 1480 0.05      
5 A' 1337 1276 9.05      
6 A' 1087 1037 0.30      
7 A' 1033 986 49.89      
8 A' 698 666 11.46      
9 A" 3245 3097 20.19      
10 A" 1142 1090 2.25      
11 A" 1002 956 0.14      
12 A" 813 776 17.37      

Unscaled Zero Point Vibrational Energy (zpe) 10040.0 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 9582.2 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/TZVP
ABC
1.19231 0.74437 0.50517

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.866 -0.166 0.000
C2 0.000 0.743 0.000
C3 0.657 -0.534 0.000
H4 0.043 1.821 0.000
H5 1.038 -0.959 0.920
H6 1.038 -0.959 -0.920

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.25541.56642.18462.25822.2582
C21.25541.43641.07842.19582.1958
C31.56641.43642.43381.08301.0830
H42.18461.07842.43383.09273.0927
H52.25822.19581.08303.09271.8409
H62.25822.19581.08303.09271.8409

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 70.808 N1 C2 H4 138.668
N1 C3 C2 49.192 N1 C3 H5 115.728
N1 C3 H6 115.728 C2 N1 C3 60.000
C2 C3 N1 49.192 C2 C3 H5 120.642
C2 C3 H6 120.642 C3 C2 H4 150.523
H5 C3 H6 116.414
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability