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

using model chemistry: CISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/cc-pVDZ
 hartrees
Energy at 0K-132.251814
Energy at 298.15K-132.254913
HF Energy-131.848533
Nuclear repulsion energy63.634087
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 CISD/cc-pVDZ
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' 3318 3059 0.68      
2 A' 3195 2945 19.36      
3 A' 1800 1660 11.46      
4 A' 1550 1429 0.10      
5 A' 1380 1272 8.93      
6 A' 1086 1001 0.16      
7 A' 1040 958 52.11      
8 A' 729 672 12.11      
9 A" 3290 3033 23.65      
10 A" 1141 1052 2.17      
11 A" 1012 933 0.15      
12 A" 825 760 15.72      

Unscaled Zero Point Vibrational Energy (zpe) 10183.0 cm-1
Scaled (by 0.9218) Zero Point Vibrational Energy (zpe) 9386.7 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 CISD/cc-pVDZ
ABC
1.18379 0.74387 0.50400

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.866 -0.168 0.000
C2 0.000 0.745 0.000
C3 0.655 -0.533 0.000
H4 0.044 1.832 0.000
H5 1.045 -0.961 0.926
H6 1.045 -0.961 -0.926

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.25841.56392.19762.26682.2668
C21.25841.43581.08822.20442.2044
C31.56391.43582.44261.09211.0921
H42.19761.08822.44263.10823.1082
H52.26682.20441.09213.10821.8514
H62.26682.20441.09213.10821.8514

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 70.619 N1 C2 H4 138.835
N1 C3 C2 49.381 N1 C3 H5 116.044
N1 C3 H6 116.044 C2 N1 C3 60.000
C2 C3 N1 49.381 C2 C3 H5 120.793
C2 C3 H6 120.793 C3 C2 H4 150.546
H5 C3 H6 115.913
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability