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

using model chemistry: QCISD/aug-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 QCISD/aug-cc-pVDZ
 hartrees
Energy at 0K-132.325448
Energy at 298.15K-132.328476
HF Energy-131.853808
Nuclear repulsion energy63.026655
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/aug-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' 3246 3145 0.81      
2 A' 3128 3030 20.65      
3 A' 1696 1643 9.31      
4 A' 1509 1461 0.15      
5 A' 1313 1272 7.47      
6 A' 1049 1016 0.12      
7 A' 1001 970 48.02      
8 A' 671 650 11.44      
9 A" 3223 3122 18.05      
10 A" 1100 1066 1.94      
11 A" 974 944 0.53      
12 A" 771 747 17.46      

Unscaled Zero Point Vibrational Energy (zpe) 9840.4 cm-1
Scaled (by 0.9687) Zero Point Vibrational Energy (zpe) 9532.4 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/aug-cc-pVDZ
ABC
1.16106 0.72945 0.49386

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.875 -0.171 0.000
C2 0.000 0.753 0.000
C3 0.664 -0.539 0.000
H4 0.041 1.844 0.000
H5 1.049 -0.967 0.931
H6 1.049 -0.967 -0.931

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.27261.58242.21332.28122.2812
C21.27261.45251.09152.21992.2199
C31.58241.45252.46261.09501.0950
H42.21331.09152.46263.12833.1283
H52.28122.21991.09503.12831.8622
H62.28122.21991.09503.12831.8622

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 70.645 N1 C2 H4 138.720
N1 C3 C2 49.355 N1 C3 H5 115.658
N1 C3 H6 115.658 C2 N1 C3 60.000
C2 C3 N1 49.355 C2 C3 H5 120.597
C2 C3 H6 120.597 C3 C2 H4 150.635
H5 C3 H6 116.493
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability