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

using model chemistry: QCISD/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 QCISD/cc-pVTZ
 hartrees
Energy at 0K-132.424849
Energy at 298.15K-132.427915
HF Energy-131.885168
Nuclear repulsion energy63.787481
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 QCISD/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' 3253 3108 0.62      
2 A' 3138 2998 19.41      
3 A' 1725 1649 9.81      
4 A' 1533 1465 0.17      
5 A' 1329 1270 9.27      
6 A' 1069 1022 0.15      
7 A' 1019 973 51.09      
8 A' 701 670 11.51      
9 A" 3227 3084 17.17      
10 A" 1126 1076 1.80      
11 A" 999 954 0.33      
12 A" 798 762 17.03      

Unscaled Zero Point Vibrational Energy (zpe) 9958.3 cm-1
Scaled (by 0.9555) Zero Point Vibrational Energy (zpe) 9515.2 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 QCISD/cc-pVTZ
ABC
1.19072 0.74630 0.50566

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.865 -0.168 0.000
C2 0.000 0.744 0.000
C3 0.656 -0.533 0.000
H4 0.043 1.821 0.000
H5 1.038 -0.956 0.919
H6 1.038 -0.956 -0.919

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.25651.56452.18632.25572.2557
C21.25651.43551.07842.19372.1937
C31.56451.43552.43301.08171.0817
H42.18631.07842.43303.09043.0904
H52.25572.19371.08173.09041.8389
H62.25572.19371.08173.09041.8389

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 70.708 N1 C2 H4 138.757
N1 C3 C2 49.292 N1 C3 H5 115.745
N1 C3 H6 115.745 C2 N1 C3 60.000
C2 C3 N1 49.292 C2 C3 H5 120.613
C2 C3 H6 120.613 C3 C2 H4 150.535
H5 C3 H6 116.422
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability