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

using model chemistry: QCISD/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 QCISD/6-31G
 hartrees
Energy at 0K-132.076056
Energy at 298.15K-132.079019
HF Energy-131.747972
Nuclear repulsion energy61.993665
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/6-31G
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' 3255 3136 1.14      
2 A' 3146 3032 7.44      
3 A' 1628 1569 5.62      
4 A' 1534 1478 0.50      
5 A' 1253 1207 13.18      
6 A' 1065 1027 13.19      
7 A' 990 954 40.16      
8 A' 585 563 4.70      
9 A" 3247 3128 20.05      
10 A" 1118 1077 0.93      
11 A" 962 927 0.12      
12 A" 770 742 24.60      

Unscaled Zero Point Vibrational Energy (zpe) 9775.6 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 9419.8 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 QCISD/6-31G
ABC
1.14012 0.69433 0.47364

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.898 -0.159 0.000
C2 0.000 0.765 0.000
C3 0.685 -0.558 0.000
H4 0.060 1.847 0.000
H5 1.059 -0.987 0.928
H6 1.059 -0.987 -0.928

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.28881.63212.22362.31832.3183
C21.28881.49041.08382.24792.2479
C31.63211.49042.48571.08861.0886
H42.22361.08382.48573.14543.1454
H52.31832.24791.08863.14541.8564
H62.31832.24791.08863.14541.8564

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 71.508 N1 C2 H4 139.011
N1 C3 C2 48.492 N1 C3 H5 115.424
N1 C3 H6 115.424 C2 N1 C3 60.000
C2 C3 N1 48.492 C2 C3 H5 120.499
C2 C3 H6 120.499 C3 C2 H4 149.481
H5 C3 H6 117.002
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability