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All results from a given calculation for CHNHCH (1H-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-132.022054
Energy at 298.15K-132.024661
HF Energy-131.694519
Nuclear repulsion energy61.241752
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' 3357 3235 2.02      
2 A' 3222 3105 46.01      
3 A' 1702 1640 3.95      
4 A' 1364 1315 16.61      
5 A' 1031 994 0.43      
6 A' 802 773 15.47      
7 A' 568 547 91.60      
8 A" 3298 3178 5.77      
9 A" 1145 1104 38.99      
10 A" 1010 974 17.40      
11 A" 689 664 5.92      
12 A" 468 451 2.38      

Unscaled Zero Point Vibrational Energy (zpe) 9329.1 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 8989.6 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
1.02637 0.73283 0.44745

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 -0.035 0.945 0.000
C2 -0.035 -0.501 0.652
C3 -0.035 -0.501 -0.652
H4 0.946 1.291 0.000
H5 -0.140 -0.949 1.628
H6 -0.140 -0.949 -1.628

Atom - Atom Distances (Å)
  N1 C2 C3 H4 H5 H6
N11.58661.58661.04062.50002.5000
C21.58661.30412.14451.07902.3262
C31.58661.30412.14452.32621.0790
H41.04062.14452.14452.97432.9743
H52.50001.07902.32622.97433.2564
H62.50002.32621.07902.97433.2564

picture of 1H-Azirine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 C2 C3 65.734 N1 C2 H5 138.601
N1 C3 C2 65.734 N1 C3 H6 138.601
C2 N1 C3 48.532 C2 N1 H4 107.610
C2 C3 H6 154.777 C3 N1 H4 107.610
C3 C2 H5 154.777
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability