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

using model chemistry: QCISD/6-311+G(3df,2p)

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/6-311+G(3df,2p)
 hartrees
Energy at 0K-132.422916
Energy at 298.15K-132.425984
HF Energy-131.884397
Nuclear repulsion energy63.836588
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/6-311+G(3df,2p)
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' 3252 3101 0.37      
2 A' 3131 2986 19.35      
3 A' 1727 1647 10.32      
4 A' 1533 1462 0.34      
5 A' 1334 1272 8.04      
6 A' 1073 1023 0.13      
7 A' 1020 973 49.61      
8 A' 706 673 12.73      
9 A" 3223 3073 15.56      
10 A" 1126 1074 1.89      
11 A" 1000 954 0.39      
12 A" 798 761 17.08      

Unscaled Zero Point Vibrational Energy (zpe) 9960.6 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 9499.4 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/6-311+G(3df,2p)
ABC
1.19192 0.74803 0.50672

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.864 -0.168 0.000
C2 0.000 0.743 0.000
C3 0.655 -0.532 0.000
H4 0.039 1.822 0.000
H5 1.038 -0.956 0.920
H6 1.038 -0.956 -0.920

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.25571.56172.18562.25442.2544
C21.25571.43341.07952.19362.1936
C31.56171.43342.43291.08291.0829
H42.18561.07952.43293.09233.0923
H52.25442.19361.08293.09231.8396
H62.25442.19361.08293.09231.8396

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 70.655 N1 C2 H4 138.636
N1 C3 C2 49.345 N1 C3 H5 115.769
N1 C3 H6 115.769 C2 N1 C3 60.000
C2 C3 N1 49.345 C2 C3 H5 120.682
C2 C3 H6 120.682 C3 C2 H4 150.709
H5 C3 H6 116.288
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability